13 0 2 MB
ZXR10 M6000-S Carrier-Class Router
Configuration Guide (Interface Configuration) Version: 3.00.10
ZTE CORPORATION No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Tel: +86-755-26771900 Fax: +86-755-26770801 URL: http://support.zte.com.cn E-mail: [email protected]
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Revision History Revision No.
Revision Date
Revision Reason
R1.0
2014-10-20
First edition.
Serial Number: SJ-20140731105308-008 Publishing Date: 2014-10-20 (R1.0)
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Contents About This Manual ......................................................................................... I Chapter 1 Interface Information Displaying ............................................. 1-1 1.1 Interface Types .................................................................................................. 1-1 1.2 Interface Naming Rule ........................................................................................ 1-1 1.3 Viewing Interface Information .............................................................................. 1-3
Chapter 2 Basic Interface Configuration.................................................. 2-1 2.1 IP Address Configuration .................................................................................... 2-1 2.1.1 IP Address Overview ................................................................................ 2-1 2.1.2 Configuring an IP Address ........................................................................ 2-2 2.1.3 Configuring a Byname and Description for an Interface............................... 2-3 2.1.4 Binding an Interface to a VRF Instance ...................................................... 2-4 2.1.5 IP Address Configuration Example ............................................................ 2-5 2.2 IP MTU Configuration ......................................................................................... 2-7 2.2.1 IP MTU Overview ..................................................................................... 2-7 2.2.2 Configuring an IP MTU ............................................................................. 2-8 2.2.3 IP MTU Configuration Example ................................................................. 2-9 2.3 Interface MTU Configuration ............................................................................. 2-10 2.3.1 Interface MTU Overview ......................................................................... 2-10 2.3.2 Configuring an Interface MTU ................................................................. 2-10 2.3.3 Configuring the MPLS MTU for an Interface ..............................................2-11 2.3.4 Enabling or Disabling an Interface ........................................................... 2-12 2.3.5 Interface MTU Configuration Example ..................................................... 2-13 2.4 MAC Address Configuration.............................................................................. 2-15 2.4.1 MAC Address Overview.......................................................................... 2-15 2.4.2 Configuring a MAC Address.................................................................... 2-15
Chapter 3 Ethernet Interface Configuration............................................. 3-1 3.1 Ethernet Interface Overview................................................................................ 3-1 3.2 Ethernet Interface Configuration .......................................................................... 3-2 3.3 Ethernet Interface Configuration Example ............................................................ 3-4
Chapter 4 VLAN Configuration.................................................................. 4-1 4.1 Basic VLAN Configuration................................................................................... 4-1 4.1.1 VLAN Overview........................................................................................ 4-1 4.1.2 Configuring a VLAN Sub-Interface............................................................. 4-2 I SJ-20140731105308-008|2014-10-20 (R1.0)
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4.1.3 VLAN Sub-Interface Configuration Example............................................... 4-3 4.2 VLAN Range Sub-Interface Configuration ............................................................ 4-5 4.2.1 VLAN Range Sub-Interface Overview ........................................................ 4-5 4.2.2 Configuring a VLAN Range Sub-Interface .................................................. 4-5 4.2.3 VLAN Range Sub-Interface Configuration Example .................................... 4-6 4.3 VLAN TPID Configuration ................................................................................... 4-8 4.3.1 VLAN TPID Overview ............................................................................... 4-8 4.3.2 Configuring the VLAN TPID ...................................................................... 4-8 4.3.3 VLAN TPID Configuration Example ........................................................... 4-9
Chapter 5 QinQ Configuration................................................................... 5-1 5.1 Basic QinQ Configuration.................................................................................... 5-1 5.1.1 QinQ Sub-Interface Overview.................................................................... 5-1 5.1.2 Configuring a QinQ Sub-Interface.............................................................. 5-1 5.1.3 QinQ Sub-Interface Configuration Example................................................ 5-2 5.2 QinQ Range Sub-Interface Configuration ............................................................. 5-4 5.2.1 QinQ Range Sub-Interface Overview ......................................................... 5-4 5.2.2 Configuring a QinQ Range Sub-Interface ................................................... 5-4 5.2.3 QinQ Range Sub-Interface Configuration Example ..................................... 5-5
Chapter 6 SuperVLAN Configuration ....................................................... 6-1 6.1 SuperVLAN Overview......................................................................................... 6-1 6.2 Configuring a SuperVLAN .................................................................................. 6-2 6.3 SuperVLAN Configuration Example ..................................................................... 6-4 6.3.1 Integrated SuperVLAN Configuration Example ........................................... 6-4 6.3.2 VLAN-Bound-to-IP-Address Configuration Example.................................... 6-6 6.3.3 IP-MAC Address Binding Example ............................................................ 6-7
Chapter 7 SmartGroup Configuration ...................................................... 7-1 7.1 SmartGroup Overview ........................................................................................ 7-1 7.2 Configuring a SmartGroup .................................................................................. 7-2 7.3 SmartGroup Configuration Example .................................................................... 7-7 7.3.1 SmartGroup 802.3ad Mode Configuration Example .................................... 7-7 7.3.2 SmartGroup On Mode Configuration Example ......................................... 7-10
Chapter 8 POS Interface Configuration.................................................... 8-1 8.1 POS Interface Overview ..................................................................................... 8-1 8.2 Configuring a POS Interface ............................................................................... 8-1 8.3 POS Interface Configuration Example.................................................................. 8-4 8.3.1 POS Interface Basic Configuration Example .............................................. 8-4 8.3.2 POS Interface Delay Down/Up Configuration Example ............................... 8-5 II SJ-20140731105308-008|2014-10-20 (R1.0)
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Chapter 9 CPOS Interface Configuration ................................................. 9-1 9.1 CPOS Overview ................................................................................................. 9-1 9.2 Configuring CPOS Interface Attributes................................................................. 9-3 9.3 Configuring the Attributes of a CPOS Interface Section......................................... 9-4 9.4 Configuring the Lower-Order Channel of the CPOS Interface ................................ 9-5 9.5 Configuring the Higher-Order Channel of the CPOS Interface ............................... 9-7 9.6 Verifying CPOS Configurations............................................................................ 9-8 9.7 CPOS Configuration Example ............................................................................. 9-8
Chapter 10 CE1 Configuration ................................................................ 10-1 10.1 CE1 Overview ................................................................................................ 10-1 10.2 Configuring CE1............................................................................................. 10-2 10.3 CE1 Configuration Example ............................................................................ 10-4
Chapter 11 PPP Configuration ................................................................ 11-1 11.1 PPP Overview .................................................................................................11-1 11.2 Configuring PPP ..............................................................................................11-3 11.3 PPP Configuration Example .............................................................................11-5
Chapter 12 HDLC Configuration ............................................................. 12-1 12.1 HDLC Overview ............................................................................................. 12-1 12.2 Configuring HDLC .......................................................................................... 12-3 12.3 HDLC Configuration Examples ........................................................................ 12-4 12.3.1 Basic HDLC Configuration Example ...................................................... 12-4 12.3.2 POSgroup Configuration Example ......................................................... 12-6
Chapter 13 ICBG Configuration .............................................................. 13-1 13.1 ICBG Overview .............................................................................................. 13-1 13.2 Configuring an ICBG....................................................................................... 13-1 13.3 ICBG Configuration Example .......................................................................... 13-2
Chapter 14 Multilink Configuration......................................................... 14-1 14.1 Multilink Overview .......................................................................................... 14-1 14.2 Configuring Multilink ....................................................................................... 14-2 14.3 Multilink Configuration Example....................................................................... 14-4
Chapter 15 Interface Handover Configuration....................................... 15-1 15.1 LAN/WAN Handover Overview ........................................................................ 15-1 15.2 Configuring Interface Handover ....................................................................... 15-2 15.3 Interface Handover Configuration Example ...................................................... 15-2
Chapter 16 Port Damping Configuration................................................ 16-1 16.1 Port Damping Overview .................................................................................. 16-1 III SJ-20140731105308-008|2014-10-20 (R1.0)
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16.2 Configuring the Port Damping Function............................................................ 16-1 16.3 Port Damping Configuration Example .............................................................. 16-3
Chapter 17 Other Interfaces Configuration............................................ 17-1 17.1 Configuring a Loopback Interface .................................................................... 17-1 17.2 Configuring a NULL Interface .......................................................................... 17-4 17.3 Configuring a ULEI Interface ........................................................................... 17-6 17.4 Configuring a Tunnel ...................................................................................... 17-8
Figures............................................................................................................. I Glossary ........................................................................................................ III
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About This Manual Purpose This manual describes the principle, configuration commands, maintenance commands and configuration examples about interfaces of ZXR10 M6000-S.
Intended Audience This manual is intended for the following engineers: l l l
Network planning engineers Commissioning engineers Maintaining engineers
What Is in This Manual This manual contains the following contents: Chapter
Summary
1, Interface Information
Describes the commands to view interface information.
Displaying 2, Basic Interface
Describes the configurations on an interface, including an IP
Configuration
address, an IP MTU and an MTU.
3, Ethernet Interface
Describes the commands to configure an Ethernet interface.
Configuration 4, VLAN Configuration
Describes the VLAN principle, configuration commands, and configuration examples.
5, QinQ Configuration
Describes the QinQ principle, configuration commands, and configuration examples.
6, SuperVLAN Configuration
Describes the SuperVLAN principle, configuration commands, and configuration examples.
7, SmartGroup Configuration
Describes the SmartGroup principle, configuration commands, and configuration examples.
8, POS Interface Configuration
Describes the POS Interface configuration commands, and configuration examples.
9, CPOS Interface
Describes the CPOS Interface configuration commands, and
Configuration
configuration examples.
10, CE1 Configuration
Describes the CE1 configuration commands, and configuration examples.
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Chapter
Summary
11, PPP Configuration
Describes the PPP principle, configuration commands, and configuration example.
12, HDLC Configuration
Describes the HDLC principle, configuration commands, and configuration examples.
13, ICBG Configuration
Describes the ICBG principle, configuration commands, and configuration example.
14, Multilink Configuration
Describes the Multilink principle, configuration commands, and configuration examples.
15, Interface Handover
Describes the LAN/WAN Handover principle, configuration
Configuration
commands, and configuration examples.
16, Port Damping
Describes the Port Damping principle, configuration commands, and
Configuration
configuration examples.
17, Other Interfaces
Describes functions, configuration commands, maintenance
Configuration
commands and configuration examples of the Lookback interface, the NULL interface, the ULEI interface and the tunnel.
Conventions This manual uses the following conventions: Typeface
Meaning
Italics
Variables in commands. It may also refer to other related manuals and documents.
Bold
Menus, menu options, function names, input fields, option button names, check boxes, drop-down lists, dialog box names, window names, parameters, and commands.
Constant width
Text that you type, program codes, filenames, directory names, and function names.
[]
Optional parameters.
|
Separates individual parameter in series of parameters. Caution: indicates a potentially hazardous situation. Failure to comply can result in moderate injury, equipment damage, or interruption of minor services.
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Chapter 1
Interface Information Displaying Table of Contents Interface Types...........................................................................................................1-1 Interface Naming Rule................................................................................................1-1 Viewing Interface Information .....................................................................................1-3
1.1 Interface Types The Interfaces of the ZXR10 M6000-S can be categorized into the following types: l
Physical interfaces Physical interfaces refer to physically existing interfaces, such as Ethernet interfaces of the LAN and POS interfaces of the WAN.
l
Logical interfaces Logical interfaces refer to virtually existing interfaces that are created in configuration, such as loopback and SuperVLAN interfaces.
1.2 Interface Naming Rule Physical Interfaces The physical interfaces of the ZXR10 M6000-S are named in accordance with the following rule: _///. l
For a description of interface types and their corresponding physical interfaces, refer to Table 1-1. Table 1-1 Interface Types and Corresponding Physical Interfaces Interface Type
Physical Interface
gei
Gigabit Ethernet interface (1000 Mbit/s)
xgei
10 Gigabit Ethernet interface (1000 Mbit/s)
xlgei
40 Gigabit Ethernet interface
cgei
100 Gigabit Ethernet interface
pos
POS interface 1-1
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l l l l l
Interface Type
Physical Interface
cpos
CPOS interface
: ID of a shelf. : ID of the physical slot in which the line interface module is installed. : determined by the subcard installing on the line card. : ID of the line interface module connector. The value range and assignment of port IDs vary with the line interface modules. : ID of a sub-interface.
Logical Interfaces The Logical interfaces of the ZXR10 M6000-S are named in accordance with the following rule: . l
For a description of interface types and their corresponding logical interfaces, refer to Table 1-2. Table 1-2 Interface Types and Corresponding Logical Interfaces
l
Interface Type
Logical Interface
bvi
Bvi interface
cip
CIP interface
loopback
loopback interface
gre_tunnel
GRE_TUNNEL interface
smartgroup
Smartgroup interface
supervlan
SuperVLAN interface
null
Null interface
te_tunnel
TE_TUNNEL interface
mte_tunnel
MTE_TUNNEL interface
multilink
Multilink interface
mgmt_eth
Management interface
qx
Qx logical management interface
ulei
Ulei interface
v6_tunnel
V6_TUNNEL interface
virtual_template
Virtual_template interface
posgroup
Posgroup interface
vbui
Vbui interface
ipsec_tunnel
Ipsec_tunnel interface
refers to the ID of a port. 1-2
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Chapter 1 Interface Information Displaying
The following examples show some interface names: à
gei–0/1/0/1: No.1 port on No.0 Gigabit Ethernet subcard in No.1 slot in No.0 shelf
à
pos3–0/4/0/1: No.1 port on No.0 POS card in No.4 slot in No.0 shelf
à
loopback2: No.2 loopback interface
à
smartgroup6: No.6 Smartgroup interface
à
vbui9: No.9 Vbui interface
1.3 Viewing Interface Information Viewing IP-Related State and Configuration To view interface IP-related state and configuration information on ZXR10 M6000-S, use the following commands. Command
Function
ZXR10#show ip interface
This shows the information of all interfaces.
ZXR10#show ip interface []
This shows the information of a specified interface. This shows the information of all interfaces
ZXR10#show ip interface brief
in brief. ZXR10#show ip interface brief []
This shows the information of a specified interface in brief. This shows the information of physical
ZXR10# show ip interface brief phy
interfaces in brief. ZXR10# show ip interface brief include
This shows the information of the interface which interface name matches in brief.
ZXR10# show ip interface brief exclude
This shows the information of the interface which interface name does not match in brief.
Viewing the Description Information of an Interface To view the description information of an interface, use the following command. Command
Function
ZXR10#show interface description []
This displays the status and description of an interface.
Viewing the Configuration Information of an Interface ZXR10 M6000-STo view the configuration information of an interface, use the following command. 1-3 SJ-20140731105308-008|2014-10-20 (R1.0)
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Command
Function
ZXR10#show running-config-interface [a
This displays the configuration information
ll]
of an interface.
Viewing Other Related Information of an Interface To view other related information of an interface on ZXR10 M6000-S, use the following commands. Command
Function
ZXR10#show interface []
This views other related information of an interface, such as IP address, MAC address, interface counter, bandwidth, utilization rate, and MTU.
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Chapter 2
Basic Interface Configuration Table of Contents IP Address Configuration............................................................................................2-1 IP MTU Configuration .................................................................................................2-7 Interface MTU Configuration.....................................................................................2-10 MAC Address Configuration .....................................................................................2-15
2.1 IP Address Configuration 2.1.1 IP Address Overview IP Address Introduction Internet Protocol (IP) address is an unique 32 bit identifies, which is allocated to the host or router indirectly connecting to Internet. IP address is graduated. An IP address is composed of network ID (the first grade) and host ID (the second grade) that is convenient for people to manage IP addresses. IP address is used to help people do addressing in Internet. IP addresses are divided into five classes: A, B and C, D and E, as shown in Figure 2-1. Figure 2-1 Five Classes of IP Addresses
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Among class A, B and C addresses, some addresses are reserved for private networks. This is recommended that private network addresses must be used for establishing internal networks. These addresses refer to: l l l
Private addresses in class A: 10.0.0.0-10.255.255.255 Private addresses in class B: 172.16.0.0-172.31.255.255 Private addresses in class C: 192.168.0.0-192.168.255.255
IP Subnet Classification Address division is originally intended to facilitate design of routing protocols, so that header feature bit of an IP address is enough for judging type of a network. However, classification method restricts utilization of address space to greatest extent. With rapid expansion of Internet, problem of insufficient addresses becomes more and more serious. To utilize IP addresses to greater extent, a network can be divided into multiple subnets. The "bit borrowing" mode can be used: highest bits of host bits are borrowed to serve as subnet bits and left host bits still serve as host bits. Thus structure of an IP address consists of three parts: Network bits, subnet bits and host bits. Network bits and subnet bits are used to uniquely identify a network. Use subnet mask to find which part in IP address indicates network bits and subnet bits, which part stands for host bits. The part with subnet mask of "1" corresponds to network bits and subnet bits of IP address, while the part with subnet mask of "0" corresponds to host bits. Division of subnets greatly improves utilization of IP addresses, which relieves the problem of insufficient IP addresses to some extent. Regulations on IP addresses are shown below. l
l l l l
(0.0.0.0) is used when a host without an IP address is started. Reverse Address Resolution Protocol (RARP), BOOTstrap Protocol (BOOTP) and Dynamic Host Configuration Protocol (DHCP) are used to obtain IP address. The address serves as default route in routing table. 255.255.255.255 is a destination address used for broadcast and cannot serve as a source address. 127. X.X.X is called loopback address. Even if actual IP address of host is unknown, address still can be used to stand for the "local host". Only IP addresses with host bits being all "0" indicate network itself. An IP address with host bits being all "1" serves as broadcast address of the network. For a legal host IP address, the network part or the host part must not be all "0" or all "1".
2.1.2 Configuring an IP Address This procedure describes the steps and commands for configuring the IP address of an interface.
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Chapter 2 Basic Interface Configuration
Steps 1. Configure an IP address. Step
Command
Function
1
ZXR10(config)#interface
Enters interface configuration mode.
2
ZXR10(config-if-interface-name)#ip address {|}[| secondary]
Note: secondary refers to the secondary address of the interface.
2. Verify the configurations. Command
Function
ZXR10#show ip interface [ brief [phy ||[{exclude | include}]]]
information of the current interface.
brief: shows the brief information of the interface. phy: shows the status of the physical interface. exclude| includeis a regular expression. – End of Steps –
2.1.3 Configuring a Byname and Description for an Interface This procedure describes the steps and commands for configuring a byname and description for an interface.
Steps 1. Configure a byname and description for an interface. Step
Command
Function
1
ZXR10(config)#interface < interface-name>
Enters interface configuration mode.
2
ZXR10(config-if-interface-name)#byname
Configures the byname for the
interface. The byname is a string consisting of 1–31 characters. 2-3
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ZXR10 M6000-S Configuration Guide (Interface Configuration)
Step
Command
Function
3
ZXR10(config-if-interface-name)#description
Configures a description for the
interface. The byname is a string consisting of 1–104 characters.
A byname uniquely identifies an interface. After a byname is configured for an interface, you can enter interface configuration mode through the byname. 2. Verify the configuration. Step
Command
Function
1
ZXR10#show ip interface [brief |[||[{
Displays the byname of the
exclude | include}]]]
specified interface.
ZXR10#show interface description |]
Displays the description of the
2
specified interface.
brief : displays brief information. phy : displays the physical state. exclude | include: regular expressions. – End of Steps –
2.1.4 Binding an Interface to a VRF Instance This procedure describes the commands and steps for binding an interface to a VRF instance.
Steps 1. Bind an interface to a VRF instance. Step
Command
Function
1
ZXR10(config)#ip vrf
Creates a VRF instance. The VRF name is a string consisting of 1–32 characters.
2
ZXR10(config-vrf-vrf-name)#rd {:|A.B.C.D:|.:} 3
ZXR10(config-vrf-vrf-name)#address family ipv4
Enables the IPv4 address family for the VRF instance.
4
ZXR10(config-vrf-vrf-name)#address family ipv6
Enables the IPv6 address family for the VRF instance.
5
ZXR10(config-vrf-vrf-name)#exit
Returns to the global configuration mode.
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Chapter 2 Basic Interface Configuration
Step
Command
Function
6
ZXR10(config)#interface < interface-name>
Enters interface configuration mode.
7
ZXR10(config-if-interface-name)#ip vrf
Binds the interface to the VRF
forwarding
instance.
2. Verify the configuration. Command
Function
ZXR10#show running-config-interface
Displays the configuration for the specified interface.
– End of Steps –
2.1.5 IP Address Configuration Example 2.1.5.1 Main IP Address Configuration Example Configuration Description As shown in Figure 2-2, the interfaces gei-0/1/0/1 of R1 and gei-0/1/0/2 of R2 are connected directly. It is required that the main IP addresses of R1 and R2 can ping each other successfully. Figure 2-2 Main IP Address Configuration Example
Configuration Flow 1. Configure main IP addresses of R1 and R2. 2. Test the configuration result to confirm that R1 and R2 can ping each other.
Configuration Command Configuration on R1: R1(config)#interface gei-0/1/0/1 R1(config-if-gei-0/1/0/1)#ip address 10.1.1.1 255.255.255.0 R1(config-if-gei-0/1/0/1)#no shutdown R1(config-if-gei-0/1/0/1)#exit
Configuration on R2: R2(config)#interface gei-0/1/0/2
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ZXR10 M6000-S Configuration Guide (Interface Configuration) R2(config-if-gei-0/1/0/2)#ip address 10.1.1.2 255.255.255.0 R2(config-if-gei-0/1/0/2)#no shutdown R2(config-if-gei-0/1/0/2)#exit
Configuration Verification Verify the configuration on R1: R1#ping 10.1.1.2 sending 5,100-byte ICMP echoes to 10.1.1.2,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max = 129/185/200ms.
Verify the configuration on R2: R2#ping 10.1.1.1 sending 5,100-byte ICMP echoes to 10.1.1.2,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max = 129/185/200ms.
The result suggests that the addresses are configured correctly and R1 and R2 can communicate normally.
2.1.5.2 Auxiliary IP Address Configuration Example Configuration Description As shown in Figure 2-3, the interfaces gei-0/1/0/1 of R1 and gei-0/1/0/2 of R2 are connected directly. It is required that the auxiliary addresses of R1 and R2 can ping each other successfully. Figure 2-3 Auxiliary IP Address Configuration Example
Configuration Flow 1. Configure the auxiliary IP addresses of R1 and R2 (Before the configuration, ensure that the main IP addresses have been configured for R1 and R2). 2. Test the configuration result to confirm that R1 and R2 can ping each other.
Configuration Command Configuration on R1: R1(config)#interface gei-0/1/0/1 R1(config-if-gei-0/1/0/1)#ip address 11.1.1.1 255.255.255.0 R1(config-if-gei-0/1/0/1)#ip address 10.1.1.1 255.255.255.0 secondary
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Chapter 2 Basic Interface Configuration R2(config-if-gei-0/1/0/2)#no shutdown R1(config-if-gei-0/1/0/1)#exit
Configuration on R2: R2(config)#interface gei-0/1/0/2 R2(config-if-gei-0/1/0/2)#ip address 11.1.1.2 255.255.255.0 R2(config-if-gei-0/1/0/2)#ip address 10.1.1.2 255.255.255.0 secondary R2(config-if-gei-0/1/0/2)#no shutdown R2(config-if-gei-0/1/0/2)#exit
Configuration Verification Verify the configuration on R1: R1#ping 10.1.1.2 sending 5,100-byte ICMP echoes to 10.1.1.2,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 129/185/200ms.
Verify the configuration on R2: R2#ping 10.1.1.1 sending 5,100-byte ICMP echoes to 10.1.1.2,timeout is 2 seconds.
!!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 129/185/200ms.
The result suggests that the addresses are configured correctly and R1 and R2 can communicate normally.
2.2 IP MTU Configuration 2.2.1 IP MTU Overview Both Ethernet and 802.3 have a restriction in the data frame length, which the maximum values are 1500 bytes and 1476 bytes respectively. This feature is called IP Maximum Transmission Unit (MTU). Most of networks have their own restriction. When a data packet is transmitted in IP layer but its length is more than MTU, IP layer will do fragmentation. That is to say, the data packet is divided into many fragments, and every fragment is smaller than IP MTU. IP MTU values are different in the different networks. In order to avoid fragmentation and improve network performance, use ip mtu command to modify the size of IP MTU. l
An important problem is that the larger the IP MTU value is set, the more packets are saved in cache. Thus, the client sends packets with lower rate that causes the time delay for sending packets is bigger. When a large packet is transmitted from a PC to another PC, it will pass through many network connections which have smaller IP MTU 2-7
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ZXR10 M6000-S Configuration Guide (Interface Configuration)
l
values. In this way, the large packet will be disassembled, sent and reassembled. The packet transmission time is increased a lot. However, IP MTU value cannot be set too small because each packet has a 40 bytes header containing important control information. The header occupies lots of available bandwidth if IP MTU value is smaller. For example, a 56k modem can upload data at 4200bytes/second. If IP MTU value is set to 90 bytes, and the header occupies 40 bytes (44% of the size of the whole data packet). The utilization rate of bandwidth is very low.
Therefore, it is necessary to configure an appropriate IP MTU value.
2.2.2 Configuring an IP MTU This procedure describes the steps and commands for configuring the IP MTU of an interface.
Steps 1. Configure an IP MTU. Step
Command
Function
1
ZXR10(config)# interface {| byname
Enters the interface whose IP
}
MTU needs to be configured.
ZXR10(config-if-interface-name)# ip mtu
Configures the IP MTU of the
2
interface. Unit: Bytes.
For an ATM interface, ATM sub-interface, and atm_dslgroup interface, the range of the IP MTU is 68 to 9588, and the default value is 1500. For an Ethernet interface, ulei interface, smartgroup interface, eth_dslgroup interface, qx interface, and bvi interface, the range of the IP MTU is 68 to 9586, and the default value is 1500. For an Ethernet sub-interface, ulei sub-interface, smartgroup sub-interface, eth_dslgroup sub-interface, and supervlan interface, the range of the IP MTU is 68 to 9578, and the default value is 1500. For a POS interface, a POS sub-interface, and posgroup interface, the range of the IP MTU is 68 to 9596, and the default value is 4470. For a multilink interface, the range of the IP MTU is 68 to 9590, and the default value is 4470. For a channelized cpos_e1 interface, channelized cpos_e1 sub-interface, channelized ce1 interface, dialer interface, and serial interface, the range of the IP MTU is 68 to 9596, and the default value is 1500. For a loopback interface, virtual_template interface, IPv6 tunnel, TE tunnel, vbui interface, L3 VLAN interface, vbui sub-interface, and IPsec tunnel, the range of the IP MTU is 68 to 9600, and the default value is 1500. 2-8 SJ-20140731105308-008|2014-10-20 (R1.0)
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For a GRE tunnel, the range of the IP MTU is from 68 to 9600, and the default value is 1476. 2. Verify the configurations. Command
Function
ZXR10# show ip interface
Displays the IP MTU value of the interface.
– End of Steps –
2.2.3 IP MTU Configuration Example Configuration Description This example describes how to control the maximum packet length of forwarding flow by setting IP MTU value. As shown in Figure 2-4, the interface gei-0/7/1/4 of R1 connects to gei-0/1/0/1 of R2. The L2 packet can be forwarded properly if the length of packet is less than the MTU value preset in gei-0/7/1/4. Otherwise, the packet will be discarded directly. Figure 2-4 MTU Configuration Example Topology
Configuration Flow 1. Enter interface configuration mode. 2. Configure IP MTU value of the interface.
Configuration Command Configuration on R1: ZXR10(config)#interface gei-0/7/1/4 ZXR10(config-if-gei-0/7/1/4)#ip mtu 1300 ZXR10(config-if-gei-0/7/1/4)#no shutdown ZXR10(config-if-gei-0/7/1/4)#exit
Configuration Verification View the configuration of the IP MTU on gei-0/7/1/4. ZXR10(config)#show running-config-interface gei-0/7/1/4 ! interface gei-0/7/0/4 no shutdown ip mtu 1300
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Here, the IP MTU on gei-0/7/1/4 is modified to 1300 bytes.
2.3 Interface MTU Configuration 2.3.1 Interface MTU Overview A Maximum Transmission Unit (MTU) is the size (byte) of the maximum data packet passing on a layer of a communication protocol. Each interface of a router must has the L2 MTU attribute. This attribute affects the packets sent from the interface during the packet forwarding process. During the packet forwarding process, the router cannot directly send a packet whose length is more than the L2 MTU of the interface. The router needs to fragment the packet to make the lengths of the packets forwarded by the interface not exceed the interface MTU. When forwarding a tagged packet, the device checks the length of this packet through MPLS MTU that is similar to L2 MTU in the aspect of working mechanism. By allowing a user to configure the MTUs related to the specified interface, the device uses the MTUs on the interface based on the user's requirements. Thus the requirements on checking the segments and their lengths when the device sends or forwards a local packet are met. In case of default configuration, the device implements the same functions according to the default values set by the system.
2.3.2 Configuring an Interface MTU This procedure describes the steps and commands for configuring the MTU of an interface.
Steps 1. Configure the interface MTU. Step
Command
Function
1
ZXR10(config)#interface {| byname
Enters interface configuration
}
mode.
2
ZXR10(config-if-interface-name)#mtu
Configures the MTU value of the interface.
For an ATM interface, ATM sub-interface, and atm_dslgroup interface, the range of the MTU is 1512 to 9600, and the default value is 1600. For an Ethernet interface, ulei interface, smartgroup interface, eth_dslgroup interface, bvi interface, and qx interface, the range of the MTU is 1514 to 9600, and the default value is 1600. 2-10 SJ-20140731105308-008|2014-10-20 (R1.0)
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For a pos interface, pos sub-interface, and dialer interface, the range of the MTU is 1504 to 9600, and the default value is 4600. For a multilink interface, the range of the MTU is 1510 to 9600, and the default value is 1600. For an Ethernet sub-interface, ulei sub-interface, smartgroup sub-interface, eth_dslgroup sub-interface, and supervlan interface, the range of the MTU is 1522 to 9600, and the default value is 1600. For a channelized ce1 interface, posgroup interface, channelized cpos_e1 interface, channelized cpos_e1 sub-interface, and serial interface, the range of the MTU is 1504 to 9600, and the default value is 1600. 2. Verify the configurations. Command
Function
ZXR10#show interface []
Displays the basic information of an interface.
is the name of a specified interface. This command displays the basic information of the specified interface. If this parameter is not entered, the basic information of all interfaces is displayed. – End of Steps –
2.3.3 Configuring the MPLS MTU for an Interface This procedure describes the steps and commands for configuring the MPLS MTU for an interface.
Steps 1. Configure the MPLS MTU for an interface. Step
Command
Function
1
ZXR10(config)#interface {| byname
Enters interface configuration
}
mode.
ZXR10(config-if-interface-name)#mpls mtu
Configure the MPLS MTU for the
interface.
2
For an ATM interface, ATM sub-interface, and atm_dslgroup interface, the range of the MPLS MTU is 68–9588, and the default value is 1550. For an Ethernet interface, ulei interface, and smartgroup interface, the range of the MPLS MTU is 68–9586, and the default value is 1550. For an Ethernet sub-interface, ulei sub-interface, smartgroup sub-interface, and supervlan interface, the range of the MPLS MTU is 68–9578, and the default value is 1550. 2-11 SJ-20140731105308-008|2014-10-20 (R1.0)
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For a pos interface, pos sub-interface, posgroup interface, and serial interface, the range of the MPLS MTU is 68–9596, and the default value is 4820. For a channelized ce1 interface and channelized cpos_e1 interface, the range of the MPLS MTU is 68–9596, and the default value is 1550. For a multilink interface, the range of the MPLS MTU is 68–9590, and the default value is 1550. For a loopback interface, virtual_template interface, te tunnel interface, and L3 VLAN interface, the range of the MPLS MTU is 68–9600, and the default value is 1550. 2. Verify the configuration. Command
Function
ZXR10#show interface []
Displays basic information about interfaces.
: name of the specified interface. If this parameter is not set, basic information about all interfaces is displayed. If this parameter is set, basic information about the specified interface is displayed. – End of Steps –
2.3.4 Enabling or Disabling an Interface This procedure describes the steps and commands for enabling and disabling an interface.
Steps 1. Enable an interface. Step
Command
Function
1
ZXR10(config)#interface {| byname
Enters interface configuration
}
mode.
ZXR10(config-if-interface-name)#no shutdown
Enables the interface.
2
2. Disable an interface. Step
Command
Function
1
ZXR10(config)#interface {| byname
Enters interface configuration
}
mode.
ZXR10(config-if-interface-name)#shutdown
Disables the interface.
2
3. Verify the configuration.
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Command
Function
ZXR10#show ip interface [ brief [ phy ||[{
Displays the management status of
exclude | include}]]]
the specified interface.
brief : displays brief information. phy : displays the physical state. exclude | include: regular expressions. : name of the specified interface. If this parameter is not set, basic information about all interfaces is displayed. If this parameter is set, basic information about the specified interface is displayed. – End of Steps –
2.3.5 Interface MTU Configuration Example Configuration Description As shown in Figure 2-5, during the packet forwarding process, if the length of a packet exceeds the out interface MTU, it is fragmented or discarded. Figure 2-5 Interface MTU Configuration Example
Configuration Flow 1. Configure the MTU of an interface. 2. Send traffic. ZXR10 forwards traffic.
Configuration Command Set the MTU value of the gei-0/1/0/1 interface to 2000, and the IP MTU value of the interface to 1982. ZXR10(config)#interface gei-0/1/0/1 ZXR10(config-if-gei-0/1/0/1)#mtu 2000 ZXR10(config-if-gei-0/1/0/1)#ip mtu 1982 ZXR10(config-if-gei-0/1/0/1)#no shutdown ZXR10(config-if-gei-0/1/0/1)#exit
Configuration Verification View the configuration result. ZXR10(config)#show interface gei-0/1/0/1
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ZXR10 M6000-S Configuration Guide (Interface Configuration) gei-0/1/0/1 is up, line protocol is up Hardware is Gigabit Ethernet, address is 0012.1254.3254 Internet address is unassigned BW 1000000 Kbits IP MTU 1982 bytes MTU 2000 bytes IPv6 MTU 1500 bytes MPLS MTU 1500 bytes Holdtime is 120 sec(s) The port is optical The MDIMode of the port is not supported Loopback cancel Duplex full Negotiation auto ARP type ARP ARP Timeout 04:00:00 Last Clear Time : 2013-04-26 09:42:01 Last Refresh Time: 2013-04-26 08:35:57 120s input rate : 0Bps 0Pps 120s output rate: 0Bps 0Pps Peak rate: input 0Bps peak time N/A output 0Bps peak time N/A Intf utilization: input 0% output 0% HardWareCounters: In_Bytes 0 In_Packets 0 In_CRC_ERROR 0 In_Unicasts 0 In_Broadcasts 0 In_Multicasts 0 In_Undersize 0 In_Oversize 0 In_64B 0 In_65_127B 0 In_128_255B 0 In_256_511B 0 In_512_1023B 0 In_1024_1518B 0 In_1519_MaxB 0 E_Bytes 0 E_Packets 0 E_CRC_ERROR N/A E_Unicasts 0 E_Broadcasts 0 E_Multicasts 0 E_Undersize 0 E_Oversize N/A E_64B 0 E_65_127B 0 E_128_255B 0 E_256_511B 0 E_512_1023B 0 E_1024_1518B 0 E_1519_MaxB 0 E_SingCollision N/A E_MultCollision N/A E_LateCollision N/A E_ExceCollision N/A StreamCounters : In_Bytes 0 In_Packets 0 In_Discards 0 In_V4Bytes 0
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Chapter 2 Basic Interface Configuration In_V4Pkts 0 In_V6Bytes 0 In_V6Pkts 0 In_UpsendCar_Drop 0 E_Bytes 0 E_Packets 0 E_Discards 0 E_V4Bytes 0 E_V4Pkts 0 E_V6Bytes 0 E_V6Pkts 0 ZXR10(config)#
Packets whose lengths exceed 2000 bytes are discarded.
2.4 MAC Address Configuration 2.4.1 MAC Address Overview A MAC address is the hardware identifier of a network device. Network devices forward packets in accordance with MAC addresses. Each MAC address is unique, which ensures the correct packet forwarding. Each device maintains a MAC address table. When a device receives a data frame, it determines whether to filter out the frame or forward the frame to the corresponding port of the device based on the MAC address table. The MAC address table is the basics and prerequisite for a device to implement fast forwarding.
2.4.2 Configuring a MAC Address This procedure describes the steps and commands for configuring MAC attributes.
Steps 1. Configure MAC attributes. Step
Command
Function
1
ZXR10(config)#mac
Enters MAC configuration mode.
ZXR10(config-mac)#add permanent
Adds a permanent MAC address.
2
interface < interface-name>{ all-owner-vlan | vlan< vlan-id>}
3
ZXR10(config-mac)#delete{[mac ]| [interface
Deletes a MAC address.
]|[vlan ]} ZXR10(config-mac)#aging-time
Sets the aging time of MAC addresses. Use the no
4
aging-time command to restore the default value.
5
ZXR10(config-mac)#filter {source | both | destination}
Filters a MAC address.
mac vlan 2-15
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Step
Command
Function
ZXR10(config-mac)#limit-maximum
Sets the maximum number
[interface ]
of MAC addresses that can
6
be learned. Use the no limit-maximum command to restore the default value. ZXR10(config-mac)#limit-policy {drop|forward }
Configures the policy used when
7
the number of learned MAC addresses reaches the limit.
8
ZXR10(config-mac)#learn-priority move default
Sets whether MAC address
{enable|disable}
moving is allowed between interfaces whose moving priorities are default.
9
ZXR10(config-mac)#learn-priority move higher
Sets whether MAC address
{enable|disable}
moving is allowed between interfaces whose moving priorities are higher.
10
ZXR10(config-mac)#learn-priority move lower
Sets whether MAC address
{enable|disable}
moving is allowed between interfaces whose moving priorities are lower.
11
ZXR10(config-mac)#learn-priority move normal
Sets whether MAC address
{enable|disable}
moving is allowed between interfaces whose moving priorities are normal.
12
13 14 15
16
ZXR10(config-mac)#learn-priority interface
Sets the priority of MAC address
{default|lower|normal|higher}
moving for an interface.
ZXR10(config)#mpls l2vpn enable
Enables the L2VPN function globally.
ZXR10(config)#vpls
Creates a VPLS instance.
ZXR10(config-vpls-name)#mac
Enters MAC-VFI configuration mode.
ZXR10(config-vpls-name-mac)#move-dampening
Enables or disables the function
{enable|disable}
of dampening MAC address moving.
17
ZXR10(config-vpls-name-mac)#move-dampening-fr
Sets the upper limit of the MAC
equency
address moving rate.
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Step
18
Command
Function
ZXR10(config-vpls-name-mac)#move-dam
Sets the blocking state and
pening-interface mac-move
priority after the MAC address
{unblockable|blockable level {primary|secondary}}
moving rate exceeds the limit for an interface.
19
20
ZXR10(config-vpls-name-mac)#move-dampening-
Sets the interval of calculating
interval
the MAC address moving rate.
ZXR10(config-vpls-name-mac)#move-dampening-ti
Sets the automatic-recovery
meout
interval after an interface is blocked.
21
22
23
ZXR10(config-vpls-name-mac)#learn-dampening
Enables or disables the MAC
{enable|disable}
address learning function.
ZXR10(config-vpls-name-mac)#learn-dampening-
Sets the interval of calculating
interval
the MAC address learning rate.
ZXR10(config-vpls-name-mac)#learn-dampening-ti
Sets the automatic-recovery
meout
interval after an instance is blocked.
ZXR10(config-vpls-name-mac)#filter
24
Filters a VPLS MAC address.
{source|destination|both}[to ][ vlan ]
For a description of the parameters in Step 2, refer to the following table. Parameter
Description
permanent
Indicates that a permanent MAC address is to be added. A permanent MAC address never ages out, and it is valid after the device is restarted.
mac
MAC address.
interface
Interface name.
all-owner-vlan
Specifies all VLANs configured on the interface. The combination of the MAC address and each VLAN is written in the MAC table.
vlan
VLAN ID.
For a description of the parameters in Step 3, refer to the following table. Parameter
Description
mac
MAC address.
interface
Interface name.
vlan
VLAN ID. 2-17
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For a description of the parameter in Step 4, refer to the following table. Parameter
Description
Aging time (in seconds), range: 60–65535.
The maximum aging time is determined by performance parameters. The value 0 indicates that MAC addresses never age out.
For a description of the parameters in Step 5, refer to the following table. Parameter
Description
source
Indicates that packets with the specified source MAC address are to be filtered out.
both
Indicates that packets with the specified source MAC address and destination MAC address are to be filtered out.
destination
Indicates that packets with the specified destination MAC address are to be filtered out.
mac
MAC address.
vlan
VLAN ID.
For a description of the parameters in Step 6, refer to the following table. Parameter
Description
interface
Interface name.
Maximum number of MAC addresses that can be learned.
For a description of the parameters in Step 7, refer to the following table. Parameter
Description
drop
Indicates that data frames are dropped after the number of learned MAC addresses reaches the limit.
forward
Indicates that data frames are forwarded after the number of learned MAC addresses reaches the limit.
For a description of the parameters in Steps 8–11, refer to the following table. Parameter
Description
enable
Indicates that MAC address moving is allowed between interfaces with the same priority.
disable
Indicates that MAC address moving is disallowed between interfaces with the same priority.
For a description of the parameters in Step 12, refer to the following table. 2-18 SJ-20140731105308-008|2014-10-20 (R1.0)
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Parameter
Description
interface
Interface name.
default
Indicates that the priority is set to default.
lower
Indicates that the priority is set to lower.
normal
Indicates that the priority is set to normal.
higher
Indicates that the priority is set to higher.
For a description of the parameter in Step 16, refer to the following table. Parameter
Description
{enable|disable}
Whether to enable the MAC address moving function.
For a description of the parameter in Step 17, refer to the following table. Parameter
Description
Upper limit of the MAC address moving rate.
For a description of the parameters in Step 18, refer to the following table. Parameter
Description
interface
Interface name.
{unblockable|blockable level
Blocking status and priority.
{primary|secondary}}
For a description of the parameter in Step 19, refer to the following table. Parameter
Description
Interval of calculating the MAC address moving rate.
For a description of the parameter in Step 20, refer to the following table. Parameter
Description
Automatic-recovery interval after an interface is blocked.
For a description of the parameter in Step 21, refer to the following table. Parameter
Description
{enable|disable}
Whether to dampen the MAC address learning function.
For a description of the parameter in Step 22, refer to the following table. Parameter
Description
Interval of calculating the MAC address learning rate. 2-19
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For a description of the parameter in Step 23, refer to the following table. Parameter
Description
Automatic-recovery interval after an instance is blocked.
For a description of the parameter in Step 24, refer to the following table. Parameter source
Description Indicates that packets with the specified source MAC address are to be filtered out.
destination
Indicates that packets with the specified destination MAC address are to be filtered out.
both
Indicates that packets with the specified source MAC address and destination MAC address are to be filtered out.
MAC address in dotted notation.
VLAN ID.
to
Indicates that a MAC address range is used.
End MAC address in the range of MAC addresses to be filtered.
– End of Steps –
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Chapter 3
Ethernet Interface Configuration Table of Contents Ethernet Interface Overview .......................................................................................3-1 Ethernet Interface Configuration .................................................................................3-2 Ethernet Interface Configuration Example ..................................................................3-4
3.1 Ethernet Interface Overview The LAN interfaces supported by ZXR10 M6000-S are Ethernet interfaces, including Fast Ethernet (FE) interface and Gigabit Ethernet (GE) interface. l l
Fast Ethernet interface is accord with 100Base-TX physical standard, it is compatible with 10Base-T physical layer standard. Gigabit Ethernet interface is accord with 1000Base-TX physical layer standard, it is compatible with 10Base-T and 100Base-TX physical layer standards.
There are two working modes on Ethernet electrical interface, half-duplex and full-duplex mode. Ethernet electrical interface has self-negotiation mode, it can negotiate working mode and speed with other network devices. Ethernet electrical selects the appropriate working mode and speed automatically, thus simplifying system configuration and management. In Open System Interconnection (OSI) seven layer model defined by International Organization for Standardization (ISO), physical layer defines the physical interfaces between two devices and their electrical, procedural and mechanical characteristics and so on. The functions of Ethernet physical layer is similar to that defined by ISO. Ethernet physical layer provides a standard. The network devices can communicate with each other if manufactories produce them according to the same standard. Ethernet physical layer has two working modes, full-duplex and half-duplex mode. The different medium access modes are provided for them, l l
Use Carrier Sense Multiple Access/Collision Detect (CSMA/CD) access mode in half-duplex mode. The packets can be sent and received in full-duplex mode directly.
Full-duplex and half-duplex are physical layer concepts, and provide different access modes for duplex modes in physical layer that is data link layer concept. In this way, an important Ethernet feature is formed, data link layer and physical layer are related. 3-1 SJ-20140731105308-008|2014-10-20 (R1.0)
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3.2 Ethernet Interface Configuration This procedure describes the steps and commands for configuring an Ethernet interface.
Steps 1. Configure the IP address of the Ethernet interface. Step
Command
Function
1
ZXR10(config)#interface {|
Enters interface configuration
byname }
mode or logical interface configuration mode. If the logical interface does not exist, the command creates the logical interface and enters logical interface configuration mode.
2
Configures the IP address
ZXR10(config-if-interface-name)#ip address
{|}[| secondary]
interface.
: alias of the interface. secondary: secondary address of the interface.
Note: Before entering configuration mode of the interface by using the byname parameter, you must set the alias of the interface.
2. Set an interface to a gateway interface. Step
Command
Function
1
ZXR10(config)#interface {|
Enters interface configuration
byname }
mode or logical interface configuration mode. If the logical interface does not exist, this command creates the logical interface and enters logical interface configuration mode.
2
ZXR10(config-if-interface-name)#gateway
Sets the interface to a gateway
interface
interface. By default, an interface is not a gateway interface. 3-2
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3. Configure the MAC flap. Command
Function
ZXR10(config-if-interface-name)#interface
Configures the MAC flap of the
mac-address|offset
interface. The range is 1–64, and the default value is 0. The range of the MAC flap can be modified when the device is started. The default range is prompted dynamically in accordance with the set value.
4. Configure the MAC address of the interface. Command
Function
ZXR10(config-if-interface-name)#interface
Configures the MAC address of
mac-address
the interface. The MAC address and offset cannot be configured at the same time. By default, the MAC interface of the interface is the system MAC address. A sub-interface inherits the MAC address of its parent interface.
5. (Optional) Configure operating mode and working rate of the interface. Step 1
Command
Function
ZXR10(config-if-interface-name)#duplex
Sets the operating mode of the
{duplex-full |duplex-half}
interface, including duplex-full and duplex-half .
2
ZXR10(config-if-interface-name)#negotiation
Configures the negotiation
{negotiation-auto | negotiation-force}
mode of the interface, including negotiation-auto and negotiation-force.
3
ZXR10(config-if-interface-name)#speed
Configures the working rate of
{speed-100M | speed-10G | speed-10M | speed-1G}
the interface.
6. Verify the configurations. Command
Function
ZXR10#show interface []
Displays the basic information of the interface.
ZXR10#show ip interface [brief [phy ||[{excl
Displays the three-layer information
ude | include}]]]
of an IP interface. 3-3
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Command
Function
ZXR10#show interface brief
Displays brief information about interfaces.
ZXR10#show running-config-interface
Displays the configuration information of the interface.
– End of Steps –
3.3 Ethernet Interface Configuration Example Configuration Description As shown in Figure 3-1, two routers connect each other through Ethernet interfaces. Figure 3-1 Ethernet Interface Configuration Example
Configuration Flow 1. Enter global configuration mode. 2. Enter interface configuration mode. 3. Perform the required configuration.
Configuration Command Configuration on R1 R1(config)#interface gei-0/2/0/2 R1(config-if-gei0/2/0/2)#ip address 168.2.1.1 255.255.255.0 R1(config-if-gei0/2/0/2)#mtu 1700 R1(config-if-gei0/2/0/2)#no shutdown R1(config-if-gei0/2/0/2)#ip mtu 1000 R1(config-if-gei0/2/0/2)#exit
Configuration Verification Use the show command to check the configuration. R1(config)#show running-config-interface gei-0/2/0/2 ! interface gei-0/2/0/2 mtu 1700 ip mtu 1000 ip address 168.2.1.1 255.255.255.0
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VLAN Configuration Table of Contents Basic VLAN Configuration ..........................................................................................4-1 VLAN Range Sub-Interface Configuration ..................................................................4-5 VLAN TPID Configuration...........................................................................................4-8
4.1 Basic VLAN Configuration 4.1.1 VLAN Overview On Ethernet network, CSMA/CD technology is used. A Layer 2 network is a broadcast domain. To reduce the cost of bandwidth resources, 802.1Q introduces Virtual Local Area Network (VLAN) technology. VLAN technology divides a physical LAN into several broadcast domains in logic. VLAN supports 8–bit sub-interfaces. To ensure that some specific users be designated into a logical group, it is necessary to use VLAN. VLAN complies with 802.1Q standard, that is, the Virtual Bridged Local Area Networks protocol. VLAN realizes logical broadcast domain. The users of one VLAN are restricted to access another VLAN. Meanwhile, broadcast packets are restricted in the logical broadcast domain. The structure of a packet with VLAN ID is shown in Figure 4-1. Figure 4-1 Structure of L2 Packet With VLAN ID
On the base of conventional Ethernet packet, a 4–byte 802.1Q packet header is added. l
l
The first two bytes are TAG Protocol Identifier (TPID). The TPID identifies the packet type. By default, the packet is a 802.1Q packet, and the TPID is 0x8100, 88a8. Common TPID values include 0x9100. The last two bytes are Tag Control Information (TCI). à
Priority (3 bits): The priority is decided by flow control information (such as QoS, and so on). 4-1
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Canonical Format Indicator (CFI) (1 bit): CFI is used to identify whether there is a canonical MAC address. When CFI is set, it means that the Data field of the frame carries the Token Ring frame that is not translated or encapsulated.
à
The last 12 bits in TCI are VLAN ID (VID). The largest VID is 4094.
Detailed descriptions of TCI field in 802.1Q header are shown in Figure 4-2. Figure 4-2 802.1Q VLAN Packet Header Structure
Many sub-interfaces may be configured on a route attribute port. Each sub-interface can encapsulate VLAN ID and VLAN Range. The packet is designated according to its VLAN TAG. A packet without a VLAN TAG will be designated to a physical interface. After the physical interface is designated, the packet is forwarded according to the forwarding table.
4.1.2 Configuring a VLAN Sub-Interface This procedure describes the steps and commands for configuring a VLAN sub-interface.
Steps 1. Configure a VLAN sub-interface. Step
Command
Function
1
ZXR10(config)#vlan-configuration
Enters VLAN configuration mode.
2
ZXR10(config-vlan)#interface
Enters VLAN sub-interface service configuration mode.
3
ZXR10(config-vlan-if-interface-name)#encapsula
Encapsulates VLAN-ID for the
tion-dot1q
new created sub-interface. The VLAN-ID ranges from 1 to 4094.
2. Verify the configurations. Command
Function
ZXR10(config)#show interface-vlan dot1q []
Displays DoT1Q configuration of a specific port or all ports.
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Chapter 4 VLAN Configuration
Command
Function
ZXR10#show vlan-conflict-interface {dot1q
VLANs configured on the
vlan-range |qinq internal-vlan-range
sub-interfaces of the same
external-vlan-range }
parent interface cannot be the same. If multiple VLANs have been configured on sub-interfaces of a parent interface, when a VLAN is configured on a new sub-interface, there may be conflict. This command searches for a conflict sub-interface. : parent interface name.
– End of Steps –
4.1.3 VLAN Sub-Interface Configuration Example Configuration Description As shown in Figure 4-3, it is required to realize the accessing and routing of users in different VLANs on the same physical Ethernet interface by using VLAN sub-interfaces. Figure 4-3 VLAN Sub-Interface Configuration Example
Configuration Flow 1. 2. 3. 4.
Create a sub-interface. Enter sub-interface VLAN configuration mode. Configure a VLAN-ID. Configure an IP address for the sub-interface. R1 and R2 can successfully ping each other.
Configuration Command Configuration for R1: R1(config)#interface gei-0/2/0/2.1 R1(config-if-gei-0/2/0/2.1)#exit R1(config)#vlan-configuration R1(config-vlan)#interface gei-0/2/0/2.1
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ZXR10 M6000-S Configuration Guide (Interface Configuration) R1(config-vlan-if-gei-0/2/0/2.1)#encapsulation-dot1q 100 R1(config-vlan-if-gei-0/2/0/2.1)#exit R1(config-vlan)#exit R1(config)#interface gei-0/2/0/2.1 R1(config-if-gei-0/2/0/2.1)#ip address 192.2.1.1 255.255.255.0 R1(config-if-gei-0/2/0/2.1)#exit
Configuration for R2: R2(config)#interface gei-0/3/0/3.1 R2(config-if-gei-0/3/0/3.1)#exit R2(config)#vlan-configuration R2(config-vlan)#interface gei-0/3/0/3.1 R2(config-vlan-if-gei-0/3/0/3.1)#encapsulation-dot1q 100 R2(config-vlan-if-gei-0/3/0/3.1)#exit R2(config-vlan)#exit R2(config)#interface gei-0/3/0/3.1 R2(config-if-gei-0/3/0/3.1)#ip address 192.2.1.2 255.255.255.0 R2(config-if-gei-0/3/0/3.1)#exit
Configuration Verification Use the show command to check the configuration for R1, as shown below. R1#show running-config vlan ! vlan-configuration interface gei-0/2/0/2.1 encapsulation-dot1q 100 $ $ !
Use the show command to check the configuration for R2, as shown below. R2#show running-config-interface gei-0/3/0/3.1 ! interface gei-0/3/0/3.1 ip address 192.2.1.2 255.255.255.0 $ ! ! vlan-configuration interface gei-0/3/0/3.1 encapsulation-dot1q 100 $ $ !
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Chapter 4 VLAN Configuration
The result is that R1 and R2 can successfully ping each other, as shown below. R2#ping 192.2.1.1 sending5,100-byte ICMP echoes to 192.2.1.1,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max=157/190/199 ms. R1#ping 192.2.1.2 sending5,100-byte ICMP echoes to 192.2.1.2,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max=157/190/199 ms.
4.2 VLAN Range Sub-Interface Configuration 4.2.1 VLAN Range Sub-Interface Overview A VLAN complies with the 802.1Q protocol, that is, the Virtual Bridged Local Area Networks protocol. A VLAN implements a logical broadcast domain. A user in one VLAN cannot access another VLAN. The broadcast packets in one broadcast domain can be broadcast only in this broadcast domain. To realize VLAN termination, a router has to partition VLAN sub-interfaces on a physical port. VLAN can be configured on each VLAN sub-interface to terminate VLAN-ID contained in packets. As the number of sub-interface is limited, it is allowed to configure several VLANs on a sub-interface. This is called VLAN Range. The VLAN Range supports 8–bit sub-interfaces.
4.2.2 Configuring a VLAN Range Sub-Interface This procedure describes the steps and commands for configuring a VLAN Range sub-interface.
Steps 1. Configure a VLAN Range sub-interface. Step
Command
Function
1
ZXR10(config)#vlan-configuration
Enters VLAN configuration mode.
2
ZXR10(vlan-config)#interface
Enters VLAN sub-interface service configuration mode.
3
ZXR10(config-vlan-if-interface-name)#encapsula
Encapsulates several
tion-dot1q range-
VLAN-ID for the new created sub-interface. The VLAN-ID ranges from 1 to 4094.
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Step
Command
Function
4
ZXR10(config-vlan-if-interface-name)#vlan-range-
Enables or disables vlan
broadcast {enable | disable | single-layer enable}
range broadcast.
2. Verify the configurations. Command
Function
ZXR10(config)#show interface-vlan dot1q []
Displays the VLAN configuration of all/one interface.
– End of Steps –
4.2.3 VLAN Range Sub-Interface Configuration Example Configuration Description It is required to configure VLAN Range in the topology shown in Figure 4-4. Encapsulate VLANs (VLAN-ID ranges from 1 to 10) on sub-interface gei-0/2/0/2.1 on R1, enable broadcasting, and encapsulate a VLAN (VLAN-ID is 5) on sub-interface gei-0/3/0/3.1 on R2. Figure 4-4 VLAN Range Sub-Interface Configuration Example
Configuration Flow 1. Configure VLAN Range on R1, and enable broadcasting. 2. Configure a VLAN on R2. 3. Make sure that R1 and R2 can communicate with each other.
Configuration Command Configuration for R1: R1(config)#interface gei-0/2/0/2.1 R1(config-if-gei-0/2/0/2.1)#exit R1(config)#vlan-configuration R1(config-vlan)#interface gei-0/2/0/2.1 R1(config-vlan-if-gei-0/2/0/2.1)#encapsulation-dot1q range 1-10 R1(config-vlan-if-gei-0/2/0/2.1)#vlan-range-broadcast enable R1(config-vlan-if-gei-0/2/0/2.1)#exit R1(config-vlan)#exit R1(config)#interface gei-0/2/0/2.1
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Configuration for R2: R2(config)#interface gei-0/3/0/3.1 R2(config-if-gei-0/3/0/3.1)#exit R2(config)#vlan-configuration R2(config-vlan)#interface gei-0/3/0/3.1 R2(config-vlan-if-gei-0/3/0/3.1)#encapsulation-dot1q 5 R2(config-vlan-if-gei-0/3/0/3.1)#exit R2(config-vlan)#exit R2(config)#interface gei-0/3/0/3.1 R2(config-if-gei-0/3/0/3.1)#ip address 192.2.1.2 255.255.255.0 R2(config-if-gei-0/3/0/3.1)#exit
Configuration Verification View the configuration result on R1, as shown below. R1#show running-config-interface gei-0/2/0/2.1 ! interface gei-0/2/0/2.1 ip address 192.2.1.1 255.255.255.0 $ ! ! vlan-configuration interface gei-0/2/0/2.1 encapsulation-dot1q range 1-10 vlan-range-broadcast enable $ $ !
View the configuration result on R2, as shown below. R2#show running-config-interface gei-0/3/0/3.1 ! interface gei-0/3/0/3.1 ip address 192.2.1.2 255.255.255.0 $ ! ! vlan-configuration interface gei-0/3/0/3.1 encapsulation-dot1q 5 $ $
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ZXR10 M6000-S Configuration Guide (Interface Configuration) !
Verify that R1 and R2 can successfully ping each other, as shown below. R2#ping 192.2.1.1 sending 5,100-byte ICMP echoes to 192.2.1.1,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 157/190/199 ms. R1#ping 192.2.1.2 sending 5,100-byte ICMP echoes to 192.2.1.2,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 157/190/199 ms.
4.3 VLAN TPID Configuration 4.3.1 VLAN TPID Overview A VLAN complies with the 802.1Q protocol, that is, the Virtual Bridged Local Area Networks protocol. A VLAN implements a logical broadcast domain. A user in one VLAN cannot access another VLAN. The broadcast packets in one broadcast domain can be broadcast only in this broadcast domain. According to the structure of a VLAN packet, there are four fields in a VLAN tag, TPID, priority, CFI and VLAN ID. TPID is used to identify whether a frame contains a VLAN tag. The TPID field is 16 bits long. Based on the traditional Ethernet packet, a 4-octet 802.1Q packet header is added. Where, the first two octets are for Tag Protocol Identifier (TPID) indicating the type of this packet. The default type is 802.1Q packet, and the default value is 0x8100. Common values include 0x9100. Some vendors may not be in accordance with RFC, so the TPIDs of different vendors may be different. To ensure compatibility, ZXR10 M6000-S provides the feature of TPID configurable.
4.3.2 Configuring the VLAN TPID This procedure describes the steps and commands for configuring the TPID field of a VLAN sub-interface.
Steps 1. Configure the VLAN TPID. Step
Command
Function
1
ZXR10(config)#vlan-configuration
Enters VLAN configuration mode.
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Chapter 4 VLAN Configuration
Step
Command
Function
2
ZXR10(vlan-config)#interface
Enters VLAN sub-interface configuration mode.
3
ZXR10(config-vlan-if-interface-name)#pid-tag
Encapsulates a TPID for the
external [internal ]
newly created sub-interface. : TPID encapsulation
ZXR10(config-vlan-if-interface-name)#pid-tag
mode supported by a
internal [external ]
sub-interface, including 88a8, 8100, 9100, 9200, and 9300.
2. Verify the configurations. Command
Function
ZXR10#show interface-vlan qinq []
Displays TPID configuration information on an interface on which dual-layer VLAN is configured.
ZXR10#show interface-vlan dot1q []
Displays TPID configuration information on an interface on which single-layer VLAN is configured.
– End of Steps –
4.3.3 VLAN TPID Configuration Example Configuration Description Figure 4-5 shows an example of VLAN TPID configuration. R1 and R2 are mutually connected. In this procedure, VLAN TPIDs and VLAN IDs of gei-0/2/0/2.1 of R1 and gei-0/3/0/3.1 of R2 are configured. Therefore, R1 and R2 can be mutually pinged. Figure 4-5 VLAN TPID Configuration Example
Configuration Flow 1. Enter VLAN sub-interface configuration mode. 2. Configure TPIDs and VLAN IDs. 3. Configure IP addresses for sub-interfaces, ensuring that R1 and R2 can be mutually pinged. Ensure that R1 and R2 can be mutually pinged even if different VLAN TPIDs are configured. The pid-tag parameter is used to control external messages. 4-9 SJ-20140731105308-008|2014-10-20 (R1.0)
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ZXR10 M6000-S Configuration Guide (Interface Configuration)
Configuration Command The following shows the configuration of R1: R1(config)#interface gei-0/2/0/2.1 R1(config-if-gei-0/2/0/2.1)#exit R1(config)#vlan-configuration R1(config-vlan)#interface gei-0/2/0/2.1 R1(config-vlan-if-gei-0/2/0/2.1)#encapsulation-dot1q 100 R1(config-vlan-if-gei-0/2/0/2.1)#pid-tag external 9100 internal 8100 R1(config-vlan-if-gei-0/2/0/2.1)#exit R1(config-vlan)#exit
R1(config)#interface gei-0/2/0/2.1 R1(config-if-gei-0/2/0/2.1)#ip address 192.2.1.1 255.255.255.0 R1(config-if-gei-0/2/0/2.1)#exit
The following shows the configuration of R2: R2(config)#interface gei-0/3/0/3.1 R2(config-if-gei-0/3/0/3.1)#exit R2(config)#vlan-configuration R2(config-vlan)#interface gei-0/3/0/3.1 R2(config-vlan-if-gei-0/3/0/3.1)#encapsulation-dot1q 100 R2(config-vlan-if-gei-0/3/0/3.1)#pid-tag external 9100 internal 8100 R2(config-vlan-if-gei-0/3/0/3.1)#exit R2(config-vlan)#exit
R2(config)#interface gei-0/3/0/3.1 R2(config-if-gei-0/3/0/3.1)#ip address 192.2.1.2 255.255.255.0 R2(config-if-gei-0/3/0/3.1)#exit
Configuration Verification Run the show command to verify the configuration result of R1: R1#show running-config vlan ! vlan-configuration interface gei-0/2/0/2.1 pid-tag external 9100 internal 8100 encapsulation-dot1q 100 $ $ !
Run the show command to verify the configuration result of R2: R2#show running-config vlan !
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Chapter 4 VLAN Configuration vlan-configuration interface gei-0/3/0/3.1 pid-tag external 9100 internal 8100 encapsulation-dot1q 100 $ $ !
The following result indicates that R1 and R2 can be mutually pinged: R2#ping 192.2.1.1 sending5, 100-byte ICMP echoes to 192.2.1.1, timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max=157/190/199ms.
R1#ping 192.2.1.2 sending5, 100-byte ICMP echoes to 192.2.1.2, timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max=157/190/199ms.
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Chapter 5
QinQ Configuration Table of Contents Basic QinQ Configuration ...........................................................................................5-1 QinQ Range Sub-Interface Configuration ...................................................................5-4
5.1 Basic QinQ Configuration 5.1.1 QinQ Sub-Interface Overview QinQ is short for 802.1Q in 802.1 Q. With more and more deployment of Ethernet technologies in network (Metro Ethernet Network (MEN)), 802.1Q VLAN is restricted a lot in user isolation and identifying. As there are only 12 bits in the VLAN TAG field defined by IEEE802.1Q, which identifies 4k VLANs. QinQ comes into birth to solve the problem that there are lots of users needing to be identified in MEN. QinQ is generated to increase the number of VLANs. It adds a 802.1Q label on the base of the conventional 802.1Q packet. Now, there are 4k*4k VLANs available by using QinQ. QinQ supports 8–bit sub-interfaces. The internal and external tags of QinQ represent different information. For example, the internal tag represents users, and the external tag represents services. A QinQ packet is transmitted through operator networks with two tags. The internal tag is transmitted transparently. QinQ is a simple and utility Virtual Private Network (VPN) technology. Therefore, it can act as the extension of core Multi Protocol Label Switching (MPLS) VPN in MEN VPN to form an end-to-end VPN technology finally.
5.1.2 Configuring a QinQ Sub-Interface This procedure describes the steps and commands for configuring a QinQ sub-interface.
Steps 1. Configure a QinQ sub-interface. Step
Command
Function
1
ZXR10(config)#vlan-configuration
Enters VLAN configuration mode.
2
ZXR10(config-vlan)#interface
Enters VLAN sub-interface service configuration mode.
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Step
Command
Function
3
ZXR10(config-vlan-if-interface-name)#qinq
Configures the internal
internal-vlanid external-vlanid
VLAN-ID and the external VLAN-ID, ranging from 1 to 4094.
2. Verify the configurations. Command
Function
ZXR10(config)#show interface-vlan qinq
Displays QinQ configuration of a specific
[]
interface or all interfaces.
– End of Steps –
5.1.3 QinQ Sub-Interface Configuration Example Configuration Description Figure 5-1 shows the an example of QinQ sub-interface configuration. R1 and R2 are mutually connected. In this procedure, the interfaces gei-0/2/0/2.1 of R1 and gei-0/3/0/3.1 of R2 are encapsulated with QinQ IDs. Figure 5-1 QinQ Sub-Interface Configuration Example
Configuration Flow 1. 2. 3. 4.
Create a sub-interface. Enter sub-interface VLAN configuration mode. Configure a QinQ ID. Configure the IP address of the sub-interface. R1 and R2 can be mutually pinged.
Configuration Command The following shows the configuration of R1: R1(config)#interface gei-0/2/0/2.1 R1(config-if-gei-0/2/0/2.1)#exit R1(config)#vlan-configuration R1(config-vlan)#interface gei-0/2/0/2.1 R1(config-vlan-if-gei-0/2/0/2.1)#qinq
internal-vlanid 1 external-vlanid 2
R1(config-vlan-if-gei-0/2/0/2.1)#exit R1(config-vlan)#exit
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Chapter 5 QinQ Configuration R1(config)#interface gei-0/2/0/2.1 R1(config-if-gei-0/2/0/2.1)#ip address 192.2.1.1 255.255.255.0 R1(config-if-gei-0/2/0/2.1)#exit
The following shows the configuration of R2: R2(config)#interface gei-0/3/0/3.1 R2(config-if-gei-0/3/0/3.1)#exit R2(config)#vlan-configuration R2(config-vlan)#interface gei-0/3/0/3.1 R2(config-vlan-if-gei-0/3/0/3.1)#qinq
internal-vlanid 1 external-vlanid 2
R2(config-vlan-if-gei-0/3/0/3.1)#exit R2(config-vlan)#exit R2(config)#interface gei-0/3/0/3.1 R2(config-if-gei-0/3/0/3.1)#ip address 192.2.1.2 255.255.255.0 R2(config-if-gei-0/3/0/3.1)#exit
Configuration Verification Run the show command to check the configuration results. The following shows the configuration result of R1: R1#show running-config vlan ! vlan-configuration interface gei-0/2/0/2.1 qinq internal-vlanid 1 external-vlanid 2 $ $ !
The following shows the configuration result of R2: R2#show running-config-interface gei-0/3/0/3.1 ! interface gei-0/3/0/3.1 ip address 192.2.1.2 255.255.255.0 $ ! ! vlan-configuration interface gei-0/3/0/3.1 qinq internal-vlanid 1 external-vlanid 2 $ $ !
The verification result indicates that R1 and R2 can be mutually pinged: R2#ping 192.2.1.1
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ZXR10 M6000-S Configuration Guide (Interface Configuration) sending5, 100-byte ICMP echoes to 192.2.1.1, timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max=157/190/199ms.
R1#ping 192.2.1.2 sending5, 100-byte ICMP echoes to 192.2.1.2, timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max=157/190/199ms.
5.2 QinQ Range Sub-Interface Configuration 5.2.1 QinQ Range Sub-Interface Overview To realize VLAN termination, it is necessary to partition VLAN sub-interfaces on physical port of a router. QinQ can be configured on each VLAN sub-interface to terminate VLAN-IDs contained in packets. As the number of sub-interfaces is limited, it is allowed to configure several QinQs on a sub-interface. This is called QinQ Range. QinQ Range sub-interfaces are configured if multiple QinQs are required on a sub-interface. ZXR10 M6000-S supports 64k QinQ Range sub-interfaces and 8–bit sub-interfaces. An internal VLAN-ID and an external VLAN-ID can be configured on each QinQ sub-interface. However, multiple internal VLAN-IDs and external VLAN-IDs can be configured on a sub-interface of QinQ Range. QinQ internal tag and external tag represent different information. For example, the internal tag represents users, and the external tag represents services. A QinQ packet is transmitted with two tags. The internal tag is transmitted transparently. QinQ is a simple and utility VPN technology. Therefore, it can act as the extension of core MPLS VPN in MEN VPN to form an end-to-end VPN technology finally.
5.2.2 Configuring a QinQ Range Sub-Interface This procedure describes the steps and commands for configuring a QinQ Range sub-interface.
Steps 1. Configure a QinQ Range sub-interface. Step
Command
Function
1
ZXR10(config)#vlan-configuration
Enters VLAN configuration mode.
2
ZXR10(vlan-config)#interface
Enters VLAN sub-interface service configuration mode.
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Chapter 5 QinQ Configuration
Step
Command
Function
3
ZXR10(config-subvlan-if)#qinq range internal-v
Configures multiple internal
lan-range - external-vlan-range
and external VLAN tags,
-
ranging from 1 to 4094.
2. Verify the configurations. Command
Function
ZXR10(config)#show interface-vlan qinq []
Displays QinQ configuration on a specific port or all ports.
– End of Steps –
5.2.3 QinQ Range Sub-Interface Configuration Example Configuration Description The network topology of a QinQ Range sub-interface configuration example is shown in Figure 5-2. Figure 5-2 QinQ Range Sub-Interface Configuration Example
Configuration Flow 1. Create a sub-interface. 2. Enter sub-interface VLAN configuration mode. 3. Configure QinQ Range.
Configuration Command The configuration of R1: R1(config)#interface gei-0/2/0/2.1 R1(config-if-gei-0/2/0/2.1)#exit R1(config)#vlan-configuration
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ZXR10 M6000-S Configuration Guide (Interface Configuration) R1(config-vlan)#interface gei-0/2/0/2.1 R1(config-vlan-if-gei-0/2/0/2.1)#qinq range internal-vlan-range 1-10 external-vlan-range 1-10 R1(config-vlan-if-gei-0/2/0/2.1)#exit R1(config-vlan)#exit
Configuration Verification Use the show command to check the configuration result. R1(config)#show running-config vlan ! vlan-configuration interface gei-0/2/0/2.1 qinq range internal-vlan-range 1-10 external-vlan-range 1-10 $ $ !
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Chapter 6
SuperVLAN Configuration Table of Contents SuperVLAN Overview ................................................................................................6-1 Configuring a SuperVLAN .........................................................................................6-2 SuperVLAN Configuration Example............................................................................6-4
6.1 SuperVLAN Overview SuperVLAN Introduction SuperVLAN technology aggregates many SubVLANs together. These SubVLANs share one IP sub-network and the same default gateway. In a SuperVLAN, l l l l
all SubVLANs can allocate IP addresses in the SuperVLAN flexibly and use the default gateway of the SuperVLAN. Each SubVLAN has its own independent broadcast domain, which ensures the isolation between different users. The communication between SubVLANs is routed by the SuperVLAN. The SuperVLAN supports cross-board interface binding and QinQ interface binding.
SuperVLAN is a type of virtual interface formed by binding several interfaces, such as VLAN sub-interface, QinQ sub-interface or Ethernet physical interface nn different boards.
SuperVLAN Feature After VLAN is introduced, different VLANs cannot communicate with each other through L2 forwarding. The communication is realized through L3 routing. Thus, it is necessary to configure different IP address segments between VLANs. To save IP addresses, SuperVLAN is used. The principle of common VLAN is shown in Figure 6-1. Figure 6-1 VLAN Configuration on Device without SuperVLAN
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ZXR10 M6000-S Configuration Guide (Interface Configuration)
On the device, the ports connecting A, B,C and D belong to different VLANs. Therefore, the different IP address segments are configured on A, B, C and D. The communications are realized through L3 route forwarding. As shown in Figure 6-2, after SuperVLAN is used, VLAN 1 and VLAN 2 are bound to SuperVLAN1, while VLAN 3 and VLAN 4 are bound to SuperVLAN2. Figure 6-2 Configuration on Device with SuperVLAN
The network segment x.x.x.0/24 is configured on both A and B, and x.x.y.0/24 network segment is configured on C and D. SuperVLAN 1 acts as the ARP proxy between A and B, and SuperVLAN2 acts as the ARP proxy between C and D. Therefore, the communications between A and B, and between C and D can be realized through L2 forwarding. However, the communication between the hosts in different network segments (such as A and C) still needs to be realized through L3 forwarding. In addition, each VLAN member of SuperVLAN is allocated an IP address segment. To ensure the security, the packets will be discarded if the IP addresses of the packets received by the SuperVLAN do not match the allocated IP address segment.
6.2 Configuring a SuperVLAN This procedure describes the steps and commands for configuring a SuperVLAN.
Steps 1. Configure the attributes of the SuperVLAN: Step
Command
Function
1
ZXR10(config)#supervlan
Enters SuperVLAN configuration mode.
2
ZXR10(config-supervlan)#interface supervlan
Enters SuperVLAN interface
configuration mode. The SuperVLAN ID ranges from 1 to 2048.
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Step
Command
Function
3
ZXR10(config-supervlan-superif)#arp-broadcast
Enables or disables the
{enable | disable}
function that SuperVLAN broadcasts ARP to all its SubVLANs. By default, this function is disabled.
4
ZXR10(config-supervlan-superif)#inter-subvlan-rou
Enables or disables the
ting {enable | disable}
inter-SubVLAN routing function. By default, this function is enabled.
5
ZXR10(config-supervlan-superif)#ip-pool-filter
Enables or disables the
{enable | disable}
SuperVLAN IP pool filter function. By default, this function is enabled.
2. Configure the attributes of a SuperVLAN member interface. Step
Command
Function
1
ZXR10(config)#supervlan
Enters SuperVLAN configuration mode.
2
ZXR10(config-supervlan)#interface
Enters SuperVLAN sub-interface configuration mode.
3
4
ZXR10(config-supervlan-subif)#supervlan
Binds the interface to the
SuperVLAN. Range: 1–2048.
ZXR10(config-supervlan-subif)#vlanpool
Binds an IP address segment
to a SubVLAN interface.
3. Verify the configurations. Command
Function
ZXR10(config)#show supervlan []
Displays the configuration of SuperVLAN.
ZXR10(config)#show supervlan-pool []
Displays the IP pool bound to SubVLAN.
– End of Steps –
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6.3 SuperVLAN Configuration Example 6.3.1 Integrated SuperVLAN Configuration Example Configuration Description SuperVLAN technology aggregates many SubVLANs together. These SubVLANs share one IP sub-network and the same default gateway. In a SuperVLAN, all SubVLANs can allocate IP addresses of SuperVLAN flexibly and use the default gateway of the SuperVLAN. Each SubVLAN has its own independent broadcast domain, which ensures the isolation between different users. The communication between SubVLANs is routed by the SuperVLAN. The network topology of a SuperVLAN configuration example is shown in Figure 6-3. Figure 6-3 Integrated SuperVLAN Configuration Example
Configuration Flow Create a SuperVLAN interface, disable source IP address filter function and then bind SubVLAN interfaces to the specific SuperVLAN interface. Configure IP pool on SubVLAN interfaces. 1. Create a SuperVLAN interface. 2. Configure an IP address. 3. Input SuperVLAN interface name, and then enter SuperVLAN aggregation interface configuration mode. 4. Disable source IP address filter function. 5. Input the name of the sub-interface encapsulated with VLAN-ID, and then enter SuperVLAN member interface configuration mod. 6. Bind the sub-interface to the SuperVLAN. 7. Configure IP pool on the sub-interface. 6-4 SJ-20140731105308-008|2014-10-20 (R1.0)
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Configuration Command Configuration for ZXR10: ZXR10(config)#interface gei-0/2/0/2.1 ZXR10(config-if-gei-0/2/0/2.1)#exit ZXR10(config)#vlan-configuration ZXR10(config-vlan)#interface gei-0/2/0/2.1 ZXR10(config-vlan-if-gei-0/2/0/2.1)#encapsulation-dot1q 100 ZXR10(config-vlan-if-gei-0/2/0/2.1))#exit ZXR10(config-vlan)#exit
ZXR10(config)#interface supervlan11 ZXR10(config-if-supervlan11)#ip address 192.11.1.1 255.255.255.0 ZXR10(config-if-supervlan11)#exit ZXR10(config)#supervlan ZXR10(config-supervlan)#interface
supervlan11
ZXR10(config-supervlan-superif)#ip-pool-filter disable ZXR10(config-supervlan-superif)#exit ZXR10(config-supervlan)#interface gei-0/2/0/2.1 ZXR10(config-supervlan-subif)#supervlan 11 ZXR10(config-supervlan-subif)#vlanpool 192.11.1.1 192.11.1.10 ZXR10(config-supervlan-subif)#end
Configuration Verification Use the show command to check the configuration result, as shown below. ZXR10#show supervlan The total supervlan number:1
SuperVLAN No: 11 ARP-Broadcast
: Disable
Gratuitous-ARP-Broadcast
: Enable
Inter-SubVLAN-Routing-IPv4: Enable Inter-SubVLAN-Routing-IPv6: Enable IP-POOL-Filter
: Disable
ND-Broadcast
: Disable
---------------------------------------SubIntf
:
gei-0/2/0/2.1
ZXR10#show running-config supervlan ! supervlan interface supervlan11 inter-subvlan-routing enable ip-pool-filter disable
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ZXR10 M6000-S Configuration Guide (Interface Configuration) $ interface gei-0/2/0/2.1 supervlan 11 vlanpool 192.11.1.1 192.11.1.10 $ $ !
ZXR10(config)#show supervlan-pool Addr-Begin 192.11.1.1
Addr-End
SuperVLAN-Name
192.11.1.10
supervlan11
SubIntf-Name gei-0/2/0/2.1
6.3.2 VLAN-Bound-to-IP-Address Configuration Example Configuration Description See Figure 6-4 for the topology of an example for a VLAN being bound to an IP address. Figure 6-4 VLAN-Bound-to-IP-Address Configuration Example
Configuration Flow 1. Create a sub-interface and encapsulate a VLAN-ID. 2. Bind the sub-interface to a SuperVLAN. 3. Configure vlanpool in SuperVLAN mode.
Configuration Command Configuration for R2: R2#configure terminal Enter configuration commands, one per line.
End with CTRL/Z.
R2(config)#interface gei-0/1/0/10.1 R2(config-if-gei-0/1/0/10.1)#exit
R2(config)#vlan-configuration R2(config-vlan)#interface gei-0/1/0/10.1 R2(config-vlan-if-gei-0/1/0/10.1)#encapsulation-dot1q 1 R2(config-vlan-if-gei-0/1/0/10.1)#exit R2(config-vlan)#exit
R2(config)#interface supervlan11 R2(config-if-supervlan11)#ip address 192.1.1.1 255.255.255.0
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R2(config)#supervlan R2(config-supervlan)#interface gei-0/1/0/10.1 R2(config-supervlan-subif)#supervlan 11 R2(config-supervlan-subif)#vlanpool 192.1.1.1 192.1.1.10 /*VLAN bound to an IP address*/ R2(config-supervlan-subif)#exit R2(config-supervlan)#exit
Configuration Verification View the configuration for R2. R2#show supervlan11 The total SuperVLAN number:1
SuperVLAN No: 11 ARP-Broadcast
: Disable
Gratuitous-ARP-Broadcast
: Enable
Inter-SubVLAN-Routing-IPv4: Enable Inter-SubVLAN-Routing-IPv6: Enable IP-POOL-Filter
: Disable
ND-Broadcast
: Disable
---------------------------------------SubIntf
:
gei-0/1/0/10.1
R2(config)#show supervlan-pool 11 Addr-Begin
Addr-End
SuperVLAN-Name
SubIntf-Name
192.1.1.1
192.1.1.10
supervlan11
gei-0/1/0/10.1
6.3.3 IP-MAC Address Binding Example Configuration Description Figure 6-5 shows an example of IP-MAC address binding. Figure 6-5 IP-MAC Address Binding Example
Configuration Flow 1. Create a SuperVLAN interface on R1, and then configure the IP address for the interface. 6-7 SJ-20140731105308-008|2014-10-20 (R1.0)
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2. Bind a physical interface to the SuperVLAN interface. 3. Configure vlanpool in SuperVLAN mode. 4. In ARP mode, enter a member interface of the SuperVLAN interface, and configure the IP-MAC binding (use the MAC address of the peer end for the MAC address of the member interface). 5. Configure the IP address of R2 that is in the same network segment as that of R1. R2 can be pinged from R1. 6. Configure a MAC flap for R2 interface. R2 cannot be pinged from R1.
Configuration Command The following example shows the configuration of R1: R1(config)#interface supervlan255 R1(config-if-supervlan255)#ip address 192.11.1.1 255.255.255.0 R1(config-if-supervlan255)#exit
R1(config)#supervlan R1(config-supervlan)#interface gei-0/2/0/2 R1(config-supervlan-subif)#supervlan 255 R1(config-supervlan-subif)#vlanpool 192.11.1.1 192.11.1.10 R1(config-supervlan-subif)#exit R1(config-supervlan)#exit
R1(config)#arp R1(config-arp)#interface gei-0/2/0/2 R1(config-arp-if-gei-0/2/0/2)#arp permanent 192.11.1.2 0000.0145.4303 /*Bind a MAC adress to the IP address*/ R1(config-arp-if-gei-0/2/0/2)#exit R1(config-arp)#exit
The following example shows the configuration of R2: R2(config)#interface gei-0/3/0/3 R2(config-if-gei-0/3/0/3)#ip address 192.11.1.2 255.255.255.0 R2(config-if-gei-0/3/0/3)#no shutdown R2(config-if-gei-0/3/0/3)#end
R2#show arp interface gei-0/3/0/3 Arp protect interface is disabled The count is 1 IP Address
Hardware Age
Exter
Address
Interface
Inter
Sub
VlanID VlanID Interface
---------------------------------------------------------------------------192.11.1.2
H
0000.0145.4303 gei-0/3/0/3
N/A
N/A
N/A
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Chapter 6 SuperVLAN Configuration
Configuration Verification R2 can be pinged from R1: R1#ping 192.11.1.2 sending 5,100-byte ICMP echo(es) to 192.11.1.2,timeout is 2 second(s). !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 1/2/7 ms.
After configuring a MAC flap for R2 interface (configure an MAC address that is different from the MAC address of the binded IP address), R2 cannot be pinged from R1. R2(config)#interface gei-0/3/0/3 R2(config-if-gei-0/3/0/3)#interface mac-address offset 2 R2(config-if-gei-0/3/0/3)#end R2#show arp interface gei-0/3/0/3 Arp protect interface is disabled The count is 1 IP Address
Hardware Age
Exter
Address
Interface
Inter
Sub
VlanID VlanID Interface
---------------------------------------------------------------------------192.11.1.2
H
0000.0145.4305 gei-0/3/0/3
N/A
N/A
N/A
R1#ping 192.11.1.2 sending 5,100-byte ICMP echo(es) to 192.11.1.2,timeout is 2 second(s). ..... Success rate is 0 percent(0/5).
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Chapter 7
SmartGroup Configuration Table of Contents SmartGroup Overview ................................................................................................7-1 Configuring a SmartGroup..........................................................................................7-2 SmartGroup Configuration Example ...........................................................................7-7
7.1 SmartGroup Overview SmartGroup Introduction Link aggregation is also called port trunk or port aggregation. Link aggregation is to aggregate several ports into an aggregation group to implement load balance of in/out flows on each member port. This improves the reliability of the connections at the same time. When a link is disconnected, the traffic will be reassigned among the remaining link automatically. Link aggregation is implemented on the data link layer. SmartGroup is to bind several different types of Ethernet interfaces into a logical SmartGroup interface. On ZXR10 M6000-S, SmartGroup provides more flexible and effective solutions about network architecture for users. It brings more flexibility in network planning and network architecture designing with ZXR10 series products. It also improves the network stability greatly, especially for Ethernet and network environments in which Ethernet interfaces are used. SmartGroup function can extend bandwidth, which makes the cost to construct network more reasonable. l l l l l l
SmartGroup supports aggregation of Ethernet interfaces across boards. SmartGroup supports aggregation of different speeds (it is necessary to configure the on mode). There are two modes of load sharing, per-packet mode and per-destination mode. 64 SmartGroup interfaces can be configured at most. In each SmartGroup interface, 8000 sub-interfaces can be configured at most . There are 32 Ethernet interfaces at most in each SmartGroup interface.
SmartGroup Features The link aggregation of SmartGroup is to aggregate several ports into an aggregation group, thus to share out/in load among the member ports. This also improves the reliability of the connections. Outwardly, the aggregation group seems as a port. Load sharing of link aggregation supports load-sharing aggregation and non-load-sharing aggregation.Figure 7-1 shows a SmartGroup n.
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Figure 7-1 SmartGroup Link Aggregation
Link Aggregation Control Protocol (LACP) provides a standardized method to exchange information between mate systems on links. LACP allows link aggregation control entities to make an agreement on the unity of the link aggregation cluster. It also allows to class a link to a link aggregation cluster and enable the functions of receiving and sending in order. The principle of LACP includes the following points: l l l l l
LACP runs on a single physical port. LACP is a procedure of constant negotiation at two ends. There are two negotiation modes, active mode and passive mode. If the negotiation is successful on a port, this port is an active port, otherwise it is a inactive port. Only active ports can send and receive packets. Negotiation packets are sent continually, and they are terminated on ports. The negotiation of the ports in an aggregation group is independent between each other without any interaction.
7.2 Configuring a SmartGroup This procedure describes the steps and commands for configuring a SmartGroup.
Steps 1. Create a SmartGroup. Step
Command
Function
1
ZXR10(config)#interface smartgroup
Creates a SmartGroup.
2. Configure an LACP interface and its parameters. Step
Command
Function
1
ZXR10(config)#lacp
Enters LACP configuration mode.
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Chapter 7 SmartGroup Configuration
Step
Command
Function
2
ZXR10(config-lacp)#lacp system-priority
Configures the LACP system priority. Range: 1–65535. Default: 32768. The smaller the value, the higher the priority. A device has a unique system priority and Mac address. The system priority is a field of the LACP negotiation message. The interface of a higher priority initiates the LACP negotiation. For interfaces sharing the same system priority, the interface of the smaller MAC address initiates the negotiation.
3
ZXR10(config-lacp)#lacp minimum-member
for a SmartGroup interface to be up. Range: 1–32. Default: 1.
4
5
6
ZXR10(config-lacp)#interface smartgroup
Enters LACP interface
configuration mode.
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Configures aggregation mode of
mode {802.3ad | on}
the SmartGroup.
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Configures the load sharing
load-balance {per-packet | per-destination}
mode of LACP. The default mode is per-destination.
7
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Configures the threshold for the
minimum-member < member-number>
SmartGroup interface to be up, in the range of 1–32, with the default value 1.
8
9
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Configures LACP negotiation
fast respond
fast response mode.
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Configures the threshold of
active limitation < member-number>
member activation of the SmartGroup. Range: 0–32. Default: 32.
10
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Enters SmartGroup interface
sys-priority
configuration mode and configure the system priority of LACP. Range: 1–65535. Default: 32768.
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Step
Command
Function
11
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Configures the restore mode
restore{ revertive | immediately |
for the SmartGroup interface to
non-revertive}
switch from the standby status to the active status. If revertive is selected for restore mode, you can set the holdoff-time in the unit of second.
12
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Enters SmartGroup interface
aggregator timeout
configuration mode and configures the SmartGroup timeout period. The default timeout period is 30 seconds. If a selected link aggregation group cannot turn the LACP to UP status, another link aggregation will be selected.
13
14
ZXR10(config-lacp-sg-if-smartgroupid)#lacp
Configures forcible switching in
force-switch
SmartGroup interface mode.
ZXR10(config-lacp-sg-if-smartgroupid) #lacp
Configures the hold-off period of
hold-off
delayed switchover back for a mc-lag.
15
ZXR10(config-lacp-sg-if-smartgroupid)#mc-lag
Configures the mc-lag priority.
priority
Use the no format of this command to restore the default value. This command is valid in 802.3 protocol mode only. The mc-lag priority can be configured in ON mode, but the configuration is invalid. The range of the priority is 1–65535.
16
ZXR10(config-lacp-sg-if-smartgroupid)#mc-lag
Configures the system ID
sys-id sys-priority
of the mc-lag, including the system priority and system MAC address. Use the no format of this command to delete the configuration. This command is valid in 802.3 protocol mode only. The system ID of the mc-lag can be configured in ON mode, but the configuration is invalid. The system MAC address does not support the broadcast
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Step
Command
Function MAC address or multicast MAC address. The range of the priority is 1–65535.
17
ZXR10(config-lacp-sg-if-smartgroupid)#mc-lag
Configures ICCP binding for the
iccp
MC-LAG. Use the no format of this command to delete the configuration.
18
ZXR10(config-lacp-sg-if-smartgroupid)#mc-lag
Configures the MC-LAG ID,
roid node-id
including the node-ID and roid. Use the no format of this command to delete the configuration.
19
ZXR10(config-lacp-sg-if-smartgroupid)#mc-lag
Configures the operating mode
mode {auto|force-master|force-backup}
of the MC-LAG. The modes include the automatic mode, forced-master mode, and forced-backup mode. This command is valid in 802.3 protocol mode only. The operating mode can be configured in ON mode, but the configuration is invalid.
802.3ad : The aggregation control mode of the smartgroup interface uses LACP of 802.3ad standard. on: Static trunk, that is, LACP is not used. By default, the aggregation mode is static trunk (on) mode. 3. Configure an LACP member interface and its parameters. Step
Command
Function
1
ZXR10(config-lacp)#interface
Enters LACP member interface configuration mode.
2
ZXR10(config-lacp-member-if-interface-
Adds an interface to the
name)#smartgroup mode {passive |
SmartGroup and sets the
active | on}
link aggregation mode of this interface.
3
ZXR10(config-lacp-member-if-interface-
Configures the long timeout
name)#lacp timeout {long | short}
or short timeout of an LACP member port, in the range of 1–65535, with the default value 32768.
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Step
Command
Function
4
ZXR10(config-lacp-member-if-interface-
Configures the priority of an
name)#lacp port-priority
LACP member port. The default priority is 32768. The smaller the value, the higher the priority. The interface of higher priority is the active interface.
5
ZXR10(config-lacp-member-if-interface-
Configure the track name used
name)#track
by the LACP member interface to associate the SAMGR. You can know the status change of the link by using the track name.
passive : The interface LACP is in passive negotiation mode. active: The interface LACP is in active negotiation mode. on: static trunk. In this mode, the interface does not run LACP, and it is necessary to set the mode to "on" on both ends. 4. Verify the configurations. Command
Function
ZXR10#show lacp {[]{counters | internal
Views the current configuration and
| neighbors|mc-lag}| sys-id}
status of the LACP.
counters: counts of LACP packets sent and received on an interface. internal: aggregation status of the member ports. neighbors: state of member ports on the peer. sys-id: LACP system priority and system ID. mc-lag: information related to the mc-lag. 5. Maintain a SmartGroup. Command
Function
ZXR10(config-lacp)#clear lacp []
Clears the count of LACP packets sent
counters
and received.
ZXR10#debug lacp {packets [interface
Sets the debugging switch for LACP
]| fsm [interface ]|
packet sending and receiving, and the
all}
switch of the sate machine.
ZXR10#show debug lacp
Displays the commands for LACP debugging functions that are enabled.
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packets: shows all packets on an interface. fsm: shows all change information of the state machine on an interface. – End of Steps –
7.3 SmartGroup Configuration Example 7.3.1 SmartGroup 802.3ad Mode Configuration Example Configuration Description As shown in Figure 7-2, R1 and R2 run LACP. The interface gei-0/2/1/5 on R1 and the interface gei-0/3/0/5 on R2 are directly connected. The interface gei-0/2/0/9 on R1 and the interface gei-0/3/0/9 on R2 are directly connected. Figure 7-2 802.3ad Mode Configuration
Configuration Flow 1. Create smartgroup1 on R1, and create smartgroup1 on R2. 2. Enter LACP configuration mode from global configuration mode, and then enter the smartgroup interfaces. 3. Set the aggregation mode of smartgroup1 to LACP on R1 and R2. Configure load sharing policy and the minimum number of members. 4. Enter LACP configuration mode from global configuration mode, and then enter the physical interfaces. 5. Add the physical interfaces on R1 and R2 to the smartgroup1. 6. Configure LACP negotiation mode and time-out period on the member interfaces of smartgroup1 on R1 and R2.
Configuration Command Configuration for R1: R1(config)#interface smartgroup1 R1(config-if-smartgroup1)#ip address 196.1.1.27 255.255.255.0 R1(config-if-smartgroup1)#exit R1(config)#lacp R1(config-lacp)#interface smartgroup1 R1(config-lacp-sg-if-smartgroup1)#lacp mode 802.3ad R1(config-lacp-sg-if-smartgroup1)#lacp load-balance R1(config-lacp-sg-if-smartgroup1)#lacp
per-destination
minimum-member 1
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ZXR10 M6000-S Configuration Guide (Interface Configuration) R1(config-lacp-sg-if-smartgroup1)#exit R1(config-lacp)#interface gei-0/2/1/5 R1(config-lacp-member-if-gei-0/2/1/5)#smartgroup 1 mode active R1(config-lacp-member-if-gei-0/2/1/5)#lacp timeout short R1(config-lacp-member-if-gei-0/2/1/5)#exit R1(config-lacp)#interface gei-0/2/0/9 R1(config-lacp-member-if-gei-0/2/0/9)#smartgroup 1 mode active R1(config-lacp-member-if-gei-0/2/0/9)#lacp timeout short R1(config-lacp-member-if-gei-0/2/0/9)#exit R1(config-lacp)#exit
Configuration for R2: R2(config)#interface smartgroup1 R2(config-if-smartgroup1)#ip address 196.1.1.28 255.255.255.0 R2(config-if-smartgroup1)#exit R2(config)#lacp R2(config-lacp)#interface smartgroup1 R2(config-lacp-sg-if-smartgroup1)#lacp mode 802.3ad R2(config-lacp-sg-if-smartgroup1)#lacp load-balance R2(config-lacp-sg-if-smartgroup1)#lacp
per-destination
minimum-member 1
R2(config-lacp-sg-if-smartgroup1)#exit R2(config-lacp)#interface gei-0/3/0/5 R2(config-lacp-member-if-gei-0/3/0/5)#smartgroup 1 mode active R2(config-lacp-member-if-gei-0/3/0/5)#lacp timeout short R2(config-lacp-member-if-gei-0/3/0/5)#exit R2(config-lacp)#interface gei-0/3/0/9 R2(config-lacp-member-if-gei-0/3/0/9)#smartgroup 1 mode active R2(config-lacp-member-if-gei-0/3/0/9)#lacp timeout short R2(config-lacp-member-if-gei-0/3/0/9)#end
Configuration Verification Check the configuration for R1 and check whether the configuration takes effect. R1(config)#show lacp 1 internal Smartgroup:1 Flags:
* - Port is Active member Port S - Port is requested in Slow LACPDUs F - Port is requested in Fast LACPDUs A - Port is in Active mode P - Port is in Passive mode
Actor
Agg
LACPDUs
Port[Flags]
State
Interval Pri
Port
Oper
Port
Key
State Machine
RX
Mux Machine
--------------------------------------------------------------------------gei-0/2/1/5 [FA*] ACTIVE gei-0/2/0/9 [FA*] ACTIVE
1 1
32768 0x111 32768 0x111
0x3f 0x3f
CURRENT CURRENT
COLL&DIST COLL&DIST
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Chapter 7 SmartGroup Configuration /*Port aggregation, Active means success, Inactive means failure*/
R1(config)#show running-config-interface smartgroup1 ! interface smartgroup1 ip address 196.1.1.27 255.255.255.0 $ ! ! lacp interface smartgroup1 interface smartgroup1 lacp mode 802.3ad /*Negotiation mode*/ lacp minimum-member 1 /*The minimum number of members aggregated successfully. When the number of links aggregated successfully is not less than this value, smartgroup is up.*/ $ $ !
R1(config)#show running-config lacp ! lacp interface smartgroup1 lacp mode 802.3ad lacp minimum-member 1 $ interface gei-0/2/0/9 /*In 802.3ad mode, only when at least one end of the link is in active mode will the aggregation succeeds.*/ lacp timeout short $ interface gei-0/2/1/5 smartgroup 1 mode active lacp timeout short $ $ !
R1(config)#show ip interface smartgroup1 smartgroup1 AdminStatus is up, PhyStatus is up, line protocol is up Internet address is 196.1.1.27/24 Broadcast address is 255.255.255.255
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ZXR10 M6000-S Configuration Guide (Interface Configuration) IP MTU is 1500 bytes
R1(config)#show lacp 1 neighbors
/*View neighbors*/
Smartgroup 1
neighbors
Actor
Partner
Partner
Port
Oper
Port
Port
System ID
Port No.
Priority
Key
State
--------------------------------------------------------------------gei-0/2/0/9
0x8000,00d0.d012.1127
21
0x8000
0x111
0x3f
gei-0/2/1/5
0x8000,00d0.d012.1127
17
0x8000
0x111
0x3f
R1(config)#show lacp 1 counters Smartgroup:1 Actor
LACPDUs
Port
Tx
Rx
Marker
LACPDUs
Marker
Tx
Err
Err
Rx
------------------------------------------------------------------gei-0/2/0/9
1840
1840
0
0
0
0
/*The value of Tx and Rx increments or decrements every 30 seconds or 1 second according to the configuration of timeput.*/ gei-0/2/1/5
1840
1840
0
0
0
0
7.3.2 SmartGroup On Mode Configuration Example Configuration Description As shown in Figure 7-3, the interface gei-0/2/1/5 on R1 and the interface gei-0/3/0/5 on R2 are directly connected; the interface gei-0/2/0/9 on R1 and the interface gei-0/3/0/9 on R2 are directly connected. R1 and R2 establish the connection through on mode without negotiation. Figure 7-3 On Mode Configuration
Configuration Flow 1. Create smartgroup1 on R1, and create smartgroup1 on R2. 2. Enter LACP configuration mode from global configuration mode, and then enter the smartgroup interfaces. 3. Configure the same negotiation mode "on" on the smartgroup1 interfaces on R1 and R2. 4. Enter LACP configuration mode from global configuration mode, and then enter the physical interfaces. 5. Add the physical interfaces on R1 and R2 to the smartgroup1. 7-10 SJ-20140731105308-008|2014-10-20 (R1.0)
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Chapter 7 SmartGroup Configuration
Configuration Command Configuration for R1: R1(config)#interface smartgroup1 R1(config-if)#ip address 196.1.1.27 255.255.255.0 R1(config-if)#exit R1(config)#lacp R1(config-lacp)#interface smartgroup1 R1(config-lacp-sg-if)#lacp mode on R1(config-lacp-sg-if)#exit R1(config-lacp)#interface gei-0/2/1/5 R1(config-lacp-member-if)#smartgroup 1 mode on R1(config-lacp-member-if)#exit R1(config-lacp)#interface gei-0/2/0/9 R1(config-lacp-member-if)#smartgroup 1 mode on R1(config-lacp-member-if)#exit
Configuration for R2: R2(config)#interface smartgroup1 R2(config-if)#ip address 196.1.1.28 255.255.255.0 R2(config-if)#exit R2(config)#lacp R2(config-lacp)#interface smartgroup1 R2(config-lacp-sg-if)#lacp mode on R2(config-lacp-sg-if)#exit R2(config-lacp)#interface gei-0/3/0/5 R2(config-lacp-member-if)#smartgroup 1 mode on R2(config-lacp-member-if)#exit R2(config-lacp)#interface gei-0/3/0/9 R2(config-lacp-member-if)#smartgroup 1 mode on R2(config-lacp-member-if)#end
Configuration Verification Check the configuration for R1 and check whether the configuration takes effect. R1#show lacp 1 internal Smartgroup:1 Flags:
* - Port is Active member Port S - Port is requested in Slow LACPDUs F - Port is requested in Fast LACPDUs A - Port is in Active mode P - Port is in Passive mode
Actor
Agg
LACPDUs
Port
Oper
Port
Port[Flags]
State
Interval
Pri
Key
State Machine
RX
Mux Machine
---------------------------------------------------------------------------gei-0/2/0/9
ACTIVE
30
32768
0x11
0x3d
N/A
N/A
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ACTIVE
30
32768
0x11
0x3d
N/A
N/A
R1#show running-config-interface smartgroup1 ! interface smartgroup1 ip address 196.1.1.27 255.255.255.0 $ ! ! lacp interface smartgroup1 lacp minimum-member 1 $ $ !
R1#show running-config lacp ! lacp interface smartgroup1 $ interface gei-0/2/1/5 smartgroup 1 mode on $ interface gei-0/2/0/9 smartgroup 1 mode on $ $ !
R1#show ip interface smartgroup1 smartgroup1 AdminStatus is up, PhyStatus is up, line protocol is up Internet address is 196.1.1.27/24 Broadcast address is 255.255.255.255 IP MTU is 1500 bytes
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Chapter 8
POS Interface Configuration Table of Contents POS Interface Overview .............................................................................................8-1 Configuring a POS Interface.......................................................................................8-1 POS Interface Configuration Example ........................................................................8-4
8.1 POS Interface Overview Packet Over SONET (POS) is a high speed, advanced WAN connection technology. It uses high speed transmission channel provided by Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) to directly transmit IP packets. The network is structured by high-end router and high-speed optical fiber. POS uses SONET/SDH as physical layer protocol, encapsulates packets in High-level Data Link Control (HDLC) frame and uses PPP as link control in link layer. IP packet service runs on network layer. At present, POS 155Mbps, 622Mbps and 2.5Gbps, 10Gbps interfaces are available. POS realizes the mapping from IP packets to SONET payload by using PPP. POS is an extensible protocol. Due to the supporting by SONET, POS overcomes the disadvantages of Asynchronous Transfer Mode (ATM). By means of HDLC and PPP, POS provides a mechanism that transmit packets in SONET Synchronous Payload Envelope (SPE) directly.
8.2 Configuring a POS Interface This section describes the configuration steps and commands of POS interface.
Steps 1. Configure a POS interface. Step
Command
1
ZXR10(config)#interface {| byname
Configures an interface or sub
}
interface.
ZXR10(config-if-interface-name)#ip address
Configures an IP address on a
{|}[| secondary]
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Step
Command
Function
3
ZXR10(config-if-interface-name)#mtu
Configures the MTU value of the interface. Unit: byte, range: 1504-9600, default: 4600.
4
ZXR10(config-if-interface-name)#ip mtu
Configures the IP MTU value of the IP packets to be processed by the interface. Unit: byte, range: 68-9596 on a POS interface, default: 4470.
5
Associates strict MTU with IP
ZXR10(config-if)#strict mtu
MTU and MTU on the interface. 6
ZXR10(config-if-interface-name)#encapsulation
Configures the encapsulation
{ppp | hdlc | frame-relay | {rx|tx}}
mode of an interface. The default encapsulation mode is PPP.
2. Configure a POS interface clock. To get better communication quality, it is necessary to select a clock mode for the POS interface. Two clock modes can be selected for the POS interfaces at two ends of communication: line-derived clock and internal clock. Notice the following cases when configuring clock modes of POS interfaces. l
l
l
When two POS interface interconnects or they are connected by Wavelength Division Multiplexing (WDM), one end uses internal clock, and the other end uses line-derived clock. When the POS interface connects to a switch device, the internal clock is used if the switch device is Data Circuit-terminating Equipment (DCE). The POS interface of ZXR10 M6000-S is Data Terminal Equipment (DTE), the clock is line-derived clock. By default, the clock of POS interface is internal clock.
The POS interface clock modes are listed in Table 8-1. Table 8-1 POS Interface Clock on Two Sides Local Side POS
The Peer Side POS
Interface
Interface
Feasibility
Line-derived clock
Line-derived clock
X
Line-derived clock
Internal clock
√
Internal clock
Line-derived clock
√
Internal clock
Internal clock
√
Remark
The internal clock of POS interfaces on two sides have to be synchronized.
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Chapter 8 POS Interface Configuration
To configure an interface clock on the ZXR10 M6000-S, use the following commands. Steps
Command
Function
1
ZXR10(config)#interface
Enters interface configuration mode.
2
ZXR10(config-if-interface-name)#clock mode
Sets the mode of the sending
send{internal| line}
clock for the interface. Internal: internal clock. Default: internal. Line: line-derived clock.
3. Configure a POS interface delay down/up. When the status of physical layer is down/up, it is judged immediately that the interface is down/up and the down/up state is reported. In this way, the updating and convergence of the router are influenced. To judge whether a flash exists during a set delay time, add the delay down command. A timer is started for verifying the network state after the preset delay time. l l
If the network state is normal, the interface down is not triggered. If the interface is still inactive, then the interface down is triggered.
To judge whether a flash exists during a set delay time, add the delay up command. A timer is started for verifying the network state after the preset delay time. l l
If the network state is down, the interface up is not triggered. If the interface is still up, then the interface up is triggered.
On the ZXR10 M6000-S, execute the following commands to activate the POS interface delay down function. Step
Command
Function
1
ZXR10(config)#interface
Enter interface configuration mode.
2
ZXR10(config-if-interface-name)#link-delay-down
Configures the delay time for
an interface to be down from up, range: 0-20000, unit: ms, default: 0 (meaning no delay).
3
ZXR10(config-if-interface-name)#link-delay-up
Configures the delay time for
an interface to be up from down, range: 0-20000, unit: ms, default: 0 (meaning no delay).
4. Verify the configurations.,
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Command
Function
ZXR10#show ip interface [brief [phy
Shows interface configuration.
||[{exclude | include}]]] ZXR10#show interface description
Shows interface description information.
ZXR10#show running-config-interface
Shows the clock mode, and POS interface
delay down configuration.
– End of Steps –
8.3 POS Interface Configuration Example 8.3.1 POS Interface Basic Configuration Example Configuration Description As shown in Figure 8-1, the POS interface 192-0/1/0/1 on R1 connects to the POS interface 192-0/2/0/1 on R2. It is required that R1 and R2 can ping each other. Figure 8-1 POS Interface Configuration Example
Configuration Flow 1. Configure IP addresses of the POS interfaces on R1 and R2. 2. Validate configuration to make sure that R1 and R2 can ping each other.
Configuration Command Configuration on R1: R1(config)#interface pos192-0/1/0/1 R1(config-if-pos192-0/1/0/1)#clock mode line R1(config-if-pos192-0/1/0/1)#exit R1(config)#interface pos192-0/1/0/1 R1(config-if-pos192-0/1/0/1)#no shutdown R1(config-if-pos192-0/1/0/1)#ip address 11.12.13.14
255.255.255.0
R1(config-if-pos192-0/1/0/1)#exit
Configuration on R2: R2(config)#interface pos192-0/2/0/1 R2(config-if-pos192-0/2/0/1)#clock mode internal
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Chapter 8 POS Interface Configuration R2(config-if-pos192-0/2/0/1)#exit R2(config)#interface pos192-0/2/0/1 R2(config-if-pos192-0/2/0/1)#no shutdown R2(config-if-pos192-0/2/0/1)#ip address 21.22.23.24 255.255.255.0 R2(config-if-pos192-0/2/0/1)#exit
Configuration Verification Check the configuration on R1, as shown below. R1#ping 21.22.23.24 sending 5,100-byte ICMP echoes to 21.22.23.24,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 12/18/20ms.
Check the configuration on R2, as shown below. R2#ping 11.12.13.14 sending 5,100-byte ICMP echoes to 11.12.13.14,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 12/18/20ms.
8.3.2 POS Interface Delay Down/Up Configuration Example Configuration Description Signal loss causes frequent down/up of the R1 interface hardware. It is required to enable the delay down/up function on the POS interface of R1, see Figure 8-2. Figure 8-2 POS Interface Delay Down/Up Configuration Example
Configuration Flow 1. Enter the interface configuration mode. 2. Configures the delay time for the POS interface to be down from up. 3. Configures the delay time for the POS interface to be up from down.
Configuration Command Configuration on R1: R1(config)#interface pos192-0/3/3/1 R1(config-if-pos192-0/3/3/1)#link-delay-down 100 R1(config-if-pos192-0/3/3/1)#link-delay-up 100 R1(config-if-pos192-0/3/3/1)#exit
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Configuration Verification If the ACT indicator on the board has no change during the configuration (100ms), execute the show command on R1, and the result is displayed as follows. R1#show running-config-interface pos192-0/3/3/1 ! interface pos192-0/3/3/1 encapsulation hdlc no shutdown $ ! ! interface pos192-0/3/3/1 link-delay-down 100 link-delay-up 100 $ !
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Chapter 9
CPOS Interface Configuration Table of Contents CPOS Overview .........................................................................................................9-1 Configuring CPOS Interface Attributes .......................................................................9-3 Configuring the Attributes of a CPOS Interface Section ..............................................9-4 Configuring the Lower-Order Channel of the CPOS Interface .....................................9-5 Configuring the Higher-Order Channel of the CPOS Interface ....................................9-7 Verifying CPOS Configurations...................................................................................9-8 CPOS Configuration Example ....................................................................................9-8
9.1 CPOS Overview CPOS Introduction The Channelized POS (CPOS) interface can precisely divide the bandwidth by fully utilizing the SDH features, which: l l l
Reduces the number of low-speed physical interfaces for routers. Enhances the convergence capability of low-speed interfaces for routers. Enhances the private-line access capability of routers.
From the physical perspective, the CPOS interface is called controller. It can be logically channelized into multiple E1/T1 channels for transmission purposes. The CPOS interface supports SDH transmission and SONET transmission. l
SDH transmission In SDH transmission mode, only the CPOS clock, E1 clock, and the E1 frame format should be set. In addition, the multiplexing path should be selected based on the country.
l
SONET transmission In SONET transmission mode, only the CPOS clock, E1 clock, and the E1 frame format should be set. In addition, the frame format for the CPOS interface should be set to SONET, and the multiplexing path should be selected based on the country.
E1/T1-to-STM-1 Multiplexing In a G.709-recommended SDH multiplexing procedure, there may be more than one path for multiplexing a low-speed frame carrying the payload to an STM-N link. Figure 9-1 and Figure 9-2 illustrate the processes of multiplexing an E1/T1 frame to an STM-1 frame. 9-1 SJ-20140731105308-008|2014-10-20 (R1.0)
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ZXR10 M6000-S Configuration Guide (Interface Configuration)
Figure 9-1 Process of Multiplexing E1 Channels to Form STM-1
Figure 9-2 Process of Multiplexing T1 Channels to Form STM-1
The multiplexing paths may vary with countries and areas. Either the AU-3 or AU-4 multiplexing path can be specified for a CPOS interface through the multiplex mode command, which ensures the interconnection between two ends.
CPOS Interface Application Scenario Some users may access the transport network by using middle-end or low-end devices through E1/T1 leased lines, and the required bandwidth is between the E1 and T3 lines. For example, several E1/T1 leased lines may be allocated for a data center. The bandwidth of users is aggregated to one or more CPOS interfaces through a transport network, and these interfaces are connected to a high-end device. The high-end device identifies low-end devices uniquely through time slots. More than one level of transport networks may be involved between the CPOS interface and low-end devices, and each low-end device may communicate with the transport network through other measures. This is logically similar to the scenario where low-end devices are connected to router A through one or multiple E1/T1 lines, see Figure 9-3.
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Chapter 9 CPOS Interface Configuration
Figure 9-3 Network Diagram for a CPOS Application
9.2 Configuring CPOS Interface Attributes This procedure describes the steps and commands for configuring the attributes of a COPS interface.
Steps 1. Enter controller configuration mode of the CPOS interface. Command
Function
ZXR10(config)#controller
Enters controller configuration mode of the CPOS interface.
2. Configure the attributes of the CPOS interface. Command
Function
ZXR10(config-ctrl-interface-name)#loopback {
Configures the loop-back mode
loopback-cancel | loopback-inner | loopback-outer }
for the CPOS interface.
ZXR10(config-ctrl-interface-name)#clock mode {
Configures the mode of the
internal |line}
sending clock for the CPOS interface. l
interval: internal clock. Default: internal.
l
line: line clock.
ZXR10(config-ctrl-interface-name)#damping
Configures damping parameters
{|enable |disable}
for the CPOS interface.
ZXR10(config-ctrl-interface-name)#holdtime
Configures the holding duration for the CPOS interface.
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{ loopback-cancel | loopback-inner | loopback-outer }: loop-back mode for interfaces, including loopback-cancel, loopback-inner, and loopback-outer. The default is loopback-cancel. { internal |line}: clock source for the CPOS interface, including internal (default) and line. : maximum suppression duration (s). The range is 2-600. The default value is 20. : suppression threshold. The range is 2-10000. The default value is 2000. : reuse threshold. The range is 1-2000. The default value is 1000. : half-life (s) that is the duration when the penalty is reduced by half. The range is 1-100. The default value is 5. – End of Steps –
9.3 Configuring the Attributes of a CPOS Interface Section This procedure describes the steps and commands for configuring the attributes of a CPOS interface section.
Steps 1. Configure the frame format of the CPOS interface as SDH. Step
Command
Function
1
ZXR10(config)#controller
Enters controller configuration mode of the CPOS interface.
2
ZXR10(config-ctrl-interface-name)#framing sdh
Configures the frame format of the CPOS interface to SDH.
2. Configure the attributes of the CPOS interface section. Command
Function
ZXR10(config-ctrl-interface-name-sdh)#flag j0
Configures the trace byte J0 of
{1-trace-byte |16-trace-byte |64-trace-byte }
the CPOS interface section.
ZXR10(config-ctrl-interface-name-sdh)#flag j0ex
Configures the peer-end trace
{1-trace-byte |16-trace-byte |64-trace-byte }
byte J0 expected by the CPOS interface section.
ZXR10(config-ctrl-interface-name-sdh)#threshold
Configures the Signal
sd-ber
Degradation (SD) BER threshold.
ZXR10(config-ctrl-interface-name-sdh)#threshold
Configures the Signal Failure
sf-ber
(SF) BER threshold. 9-4
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Chapter 9 CPOS Interface Configuration
Command
Function
ZXR10(config-ctrl-interface-name-sdh)#aug mapping
Configures the mapping mode
{au3|au4}
of the multiplexing path for the CPOS physical interface under the SDH frame format.
1-trace-byte: byte 1 mode in overhead bytes. Length of the character string: 1. 16-trace-byte: byte 16 mode in overhead bytes. Length of the character string: 1-15. 64-trace-byte: byte 64 mode in overhead bytes. Length of the character string: 1-62. : section trace bytes. : expected peer-end section trace bytes. au3: multiplexing path mode for mapping au3. au4: multiplexing path mode for mapping au4. – End of Steps –
9.4 Configuring the Lower-Order Channel of the CPOS Interface This procedure describes the steps and commands for the lower—order channel of the CPOS interface multiplexing path.
Steps 1. Configure the frame format of the CPOS interface as SDH. Step
Command
Function
1
ZXR10(config)#controller
Enters controller configuration mode of the CPOS interface.
2
ZXR10(config-ctrl-interface-name)#framing sdh
Configures the frame format for the CPOS interface to SDH.
2. Configure the mapping mode and multiplexing path. Step 1
2
Command
Function
ZXR10(config-ctrl-interface-name-sdh)#aug
Selects mapping au4 (CPOS
mapping au4
only supports the au4 mode).
ZXR10(config-ctrl-interface-name-sdh)#au4
Configures a multiplexing
tug3
path.
: value of the multiplexing path au4. Set the value to 1. 9-5 SJ-20140731105308-008|2014-10-20 (R1.0)
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: value of the multiplexing path tug3. Range: 1–3. 3. Configure the E1 and lower-order channel. Step
Command
Function
1
ZXR10(config-ctrl-interface-name-sdh-tug3)#m
Selects the e1 mode (CPOS
ode e1
supports the e1 mode).
ZXR10(config-ctrl-interface-name-sdh-tug3)#tug2
Creates an e1.
2
e1 3
ZXR10(config-ctrl-interface-name-sdh-tug3-
Configures the mode of the
e1)#clock mode send{internal|line| acr-domain |
sending clock for e1. The
dcr-domain }
modes include the internal clock, line clock, auto-sensing click, and differential clock. Default: internal.
4
5
6
ZXR10(config-ctrl-interface-name-sdh-tug3-
Configures the priority of the
e1)#clock ces-domain priority
clock domain. Default: 63.
ZXR10(config-ctrl-interface-name-sdh-tug3-e1)#f
Configures the e1 frame
raming { crc4|no-crc4}
format.
ZXR10(config-ctrl-interface-name-sdh-tug3-
Configures the loop-back
e1)#loopback { loopback-cancel | loopback-inner |
mode for the e1.
loopback-outer } 7
8
9
ZXR10(config-ctrl-interface-name-sdh-tug3-e1)#f
Configures the overhead byte
lag j2 {16-trace-byte | 64-trace-byte | 1-trace-byte-hex}
j2 for the low-order channel.
ZXR10(config-ctrl-interface-name-sdh-tug3-e1)#f
Configures the expected
lag j2ex {16-trace-byte | 64-trace-byte | 1-trace-byte-hex
peer-end overhead byte j2 for
}
the low-order channel.
ZXR10(config-ctrl-interface-name-sdh-tug3-e1)#f
Configures v5 value (000,
lag v5
001, 010, 011,100,101, 110, 111) for the low-order channel.
10
Creates a frame channel.
ZXR10(config-ctrl-interface-name-sdh-tug3e1)#channelgroup timeslot
11
Creates an unframe channel.
ZXR10(config-ctrl-interface-name-sdh-tug3e1)#unframe
: value of the tug2 layer of e1. Range: 1–7. : value of e1. Range: 1–3. : number of the created frame channel in the current e1. : number of the time slot occupied by the frame channel in the current e1 (Range: 1–31). – End of Steps – 9-6 SJ-20140731105308-008|2014-10-20 (R1.0)
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Chapter 9 CPOS Interface Configuration
9.5 Configuring the Higher-Order Channel of the CPOS Interface This procedure describes the steps and commands for configuring the higher-order channel of the CPOS interface.
Steps 1. Configure the frame format of the CPOS interface as SDH. Step
Command
Function
1
ZXR10(config)#controller
Enters the controller configuration mode of the CPOS interface.
2
ZXR10(config-ctrl-interface-name)#framing sdh
Configures the frame format for the CPOS interface to SDH frame format.
2. Configure the mapping mode and multiplexing path. Step
Command
Function
1
ZXR10(config-ctrl-interface-name-sdh)#aug
Selects mapping au4 (CPOS
mapping au4
only supports the au4 mode).
ZXR10(config-ctrl-interface-name-sdh)#au4
Configures a multiplexing
tug3
path.
2
3. Configure the path mode and parameters of the higher-order channel. Step
Command
Function
1
ZXR10(config-ctrl-interface-name-sdh-tug3)#m
Selects the e1 mode (COPS
ode e1
supports the e1 mode).
ZXR10(config-ctrl-interface-name-sdh-tug3)#flag
Configures the value of the
j1 {1-trace-byte | 1-trace-byte-hex | 16-trace-byte |
high-order channel trace byte
64-trace-byte}
J1.
ZXR10(config-ctrl-interface-name-sdh-tug3)#flag
Configures the value of the
j1ex { 1-trace-byte-hex | 16-trace-byte | 64-trace-byte}
channel trace byte J1.
ZXR10(config-ctrl-interface-name-sdh-tug3)#flag
Configures the signal flag
c2
byte indicating the supported
2
3
4
upper-layer services. 5
ZXR10(config-ctrl-interface-name-sdh-tug3)#flag
Configures the expected peer
c2ex
end signal flag byte.
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: description about the high-order channel trace byte J1. l l l
16-trace-byte: allows 1-15 bytes. 64-trace-byte: allows 1-62 bytes. 1-trace-byte-hex: allows a hex value.
: description about the expected peer-end high-order channel trace byte J1. : Signal flag byte is used for indicating the multiplexing structure and information payload of the VC frame, for example, the loading information of the channel, the types and mapping modes of the loaded services. This byte can be set as 000, 001, 002, 003, 004, 018, 019, 020, 021, 022, 023, 024, 025, 026, 027, 207, and 254. For example, C2=00H indicates that the VC4 channel carries no signal. C2=02H indicates that the payload carried by the VC4 channel is multiplexed by following the TUG multiplex path. C2=15H indicates that the payload of the VC4 channel is FDDI signals. To multiplex 2 M signals, C2 needs to select the TUG structure. The settings of C2 on the Send Port and Receive Port must be the same. If the settings are not the same, the HP-SLM alarm is submitted on the device containing the receive port, indicating that the signals received actually on C2 is different from the signals which C2 should receive. – End of Steps –
9.6 Verifying CPOS Configurations ZXR10 M6000-S provides the following command to verify CPOS attribute configuration and channelized functions. Command
Function
ZXR10#show controller
This displays the interface configuration, channel configuration, alarm messages, bit errors, and other information of the CPOS interface.
ZXR10#show running-config-controller
This displays the configuration information of
[all]
a specified CPOS interface.
9.7 CPOS Configuration Example Configuration Description As shown in Figure 9-4, the E1 interface and the two connected CPOS interfaces can normally operate.
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Chapter 9 CPOS Interface Configuration
Figure 9-4 CPOS Configuration Example
Configuration Flow 1. 2. 3. 4. 5. 6. 7.
Enter the CPOS controller configuration mode. Select the frame type. Select the mapping mode, and select AU4 to configure the E1 channelized interface. Configure the AU number for the SDH E1. Select the interface mode. Enter the e1 configuration mode. Configure the channelized interfaces with time slots.
Configuration Command Configuration for ZXR10: ZXR10(config)#controller cpos3-0/4/1/1 ZXR10(config-ctrl-cpos3-0/4/1/1)#framing sdh ZXR10(config-ctrl-cpos3-0/4/1/1-sdh)#aug mapping au4 ZXR10(config-ctrl-cpos3-0/4/1/1-sdh)#au4 1 tug3 1 ZXR10(config-ctrl-cpos3-0/4/1/1-sdh-tug3)#mode e1 ZXR10(config-ctrl-cpos3-0/4/1/1-sdh-tug3)#tug2 2 e1 1 ZXR10(config-ctrl-cpos3-0/4/1/1-sdh-tug3-e1)#unframe ZXR10(config-ctrl-cpos3-0/1/1/1-sdh-tug3-e1)#! ZXR10(config)#interface cpos3_e1-0/3/1/1.1/2/1:1 ZXR10(config-if-cpos3_e1-0/4/1/1.1/2/1:1)#no shutdown
The configuration for the peer-end interface is similar.
Configuration Verification Check the running status of the CPOS interface on ZXR10. ZXR10#show ip interface brief include cpos Interface
IP-Address
Mask
Admin Phy
Prot
cpos3_e1-0/4/1/1.1/2/1:1
unassigned
unassigned
up
up
up
/*After the two ends are successfully connected, the protocol status is "up". */ ZXR10 #show controller cpos3-0/4/1/1 cpos3-0/4/1/1 is up Physical layer is Packet over (SDH) Port connector type is OC48/STM16-SR Clock
source: line
Clock(Tx) grade: S1=00 Quality unknown Clock(Rx) grade: S1=00 Quality unknown(existing synchronization network)
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ZXR10 M6000-S Configuration Guide (Interface Configuration) SPE scrambling : enable Loopback is not set BER thresholds : SD: 10e-6
SF: 10e-4
SECTION Active
Alarm: NONE
History Alarm: LOF = 0
LOS =0
AIS = 0
RDI =0
SD
= 0
SF
=0
TIM = 0
TU
=0
SEF = 0 Error
: BIP(B1) = 65535 BIP(B2) = 67108863
J0(TX)
: "ZTE ZXR10 M6000"
CRC-7
: 0xa6
REI(M1) = 67108863
5a 54 45 20 5a 58 52 31 30 20 54 38 30 30 30 J0(RX)
: "ZTE ZXR10 M6000"
CRC-7
: 0xa6
J0(EX)
: "ZTE ZXR10 M6000"
CRC-7
: 0xa6
5a 54 45 20 5a 58 52 31 30 20 54 38 30 30 30
5a 54 45 20 5a 58 52 31 30 20 54 38 30 30 30 Higher order Path 1: STM1/AU4 1/1 is up Active
Alarm: TM
SLM
History Alarm: AIS = 0 TM
RDI = 0
= 1
TU
SLM = 1
LOP = 0
= 0
SLU = 0
UNEQP = 0 Error
: BIP(B3) = 5
C2(TX)
: 0x16
PPP/HDLC with payload scrambling
C2(RX)
: 0x16
PPP/HDLC with payload scrambling
C2(EX)
: 0x2
J1(TX)
: "ZTE ZXR10 M6000"
CRC-7
: 0xa6
NEWPTR
REI(G1) = 1
= 0
PSE = 0
NSE = 0
TUG structure
5a 54 45 20 5a 58 52 31 30 20 54 38 30 30 30 J1(RX)
: "ZTE ZXR10 M6000"
CRC-7
: 0xa6 5a 54 45 20 5a 58 52 31 30 20 54 38 30 30 30
J1(EX)
: "ZTE ZXR10 M6000"
CRC-7
: 0xa6 5a 54 45 20 5a 58 52 31 30 20 54 38 30 30 30
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Chapter 10
CE1 Configuration Table of Contents CE1 Overview ..........................................................................................................10-1 Configuring CE1.......................................................................................................10-2 CE1 Configuration Example .....................................................................................10-4
10.1 CE1 Overview CE1 Introduction E1 is a digital communication system defined by ITU-T. The transmission speed is 2.048 Mbit/s. E1/CE1 interface refers to channelized E1 interface. It has two operating modes: E1 (clear channel) mode and CE1 (channelized) mode. l
l
When the interface operates in E1 mode, it is like an interface that does not have any time slots, and has a bandwidth of 2.048 Mbit/s. Its logical features are the same with those of a synchronization serial port. It supports link layer protocols, like PPP, HDLC and frame trunk. It also supports IP network protocols. When the interface operates in CE1 mode, it has 32 time slots (ID: 0-31). Among which, time slot 1 to time slot 30 can be grouped in any methods, and time slot 0 is used to transmit frame synchronization signals. Thus time slot 0 cannot be bound. When some time slots are bound, they can be used as an interface (channel-set). Its logical features are the same with those of a synchronization serial port. It supports link layer protocols, like PPP, HDLC and frame trunk. It also supports IP network protocols.
The CE1 configuration described in this manual is the configuration of the E1 interface in CE1 operating mode.
Related Terms l
E-Carrier and T-Carrier Interface T-Carrier is the first digital carrier system. It defined the standards for digital transmission and exchange, including the transforming of analogue voice signals to digital signals. T-Carrier consists of 64 kbit/s signaling channels, called DS-0 (Digital Signal). ANSI defined the standards for T-Carrier in T1.107. T-Carrier is widely used in north America and Japan. It also contributes to the development of other carrier systems, for example, E-Carrier. 10-1
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ZXR10 M6000-S Configuration Guide (Interface Configuration)
E-Carrier is a digital communication system defined by ITU-T. It evolves from E-1 (2.048 Mbit/s), and it is used in areas except north America and Japan. l
Digital Carrier System A carrier system has multiple logical signaling channels in a single physical channel. Thus it supports multi-communication. In a digital carrier system, a single digital circuit with large-capacity supports multiple logical signaling channels. Each signaling channel supports an independent communication channel.
l
Channelized, Unchannelized, and Clear Channel The following are the operating modes for E-Carrier and T-Carrier interfaces: à
Channelized: In framed mode, time slots except frame header of digital code stream (E1, T1, E3, and DS3) can be allocated to multiple channels.
à
Unchannelized: In framed mode, time slots except frame header of digital code stream (E1, T1, E3, and DS3) can only be allocated to one channel.
à
Clear Channel: It is also call unframed mode. Any bit in a code stream carries data, and the data in code stream belongs to one channel.
10.2 Configuring CE1 This procedure describes the steps and commands for configuring a CE1 interface.
Steps 1. Configure the properties of the CE1 interface. Step
Command
Function
1
ZXR10(config)#controller
Enters controller configuration mode of the CE1 interface.
2
ZXR10(config-ctrl-interface-name)#loopback
Configures loopback mode
(including loopback-cancel, loopback-inner, and loopbackouter) of the CE1 interface.
3
ZXR10(config-ctrl-interface-name)#clock
Configures the mode of the sending
mode send{internal | line | acr-domain |
clock for the CE1 interface. The
dcr-domain }
modes include the internal clock (default), line clock, auto-sensing clock, and differential clock.
4
ZXR10(config-ctrl-interface-name)#clock
Configures the priority of the clock
ces-domain priority
domain for the CE1 interface. Default: 63.
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Chapter 10 CE1 Configuration
Step
Command
Function
5
ZXR10(config-ctrl-interface-name)#clock
Configures the mode of the
mode receive { internal | line }
receiving clock for the CE1 interface. The modes include the internal clock and line clock. Default: line.
6
7
ZXR10(config-ctrl-interface-name)#damping
Configures damping parameters
{| enable |
for the CE1 interface. Enable or
disable}
disable interface damping.
ZXR10(config-ctrl-interface-name)#holdtime
Configures holdtime when restart
interface board or device. Range: 0–1200 seconds.
8
ZXR10(config-ctrl-interface-name)#framing
Configures the frame format
(including crc4 and no-crc4) for the CE1 interface in framed mode.
9
ZXR10(config-ctrl-interface-name)#itf-type
Configures the filler type (including
0x7e and 0xff) between frames for the CE1 interface.
10
ZXR10(config-ctrl-interface-name)#linecode
Configures line encoding format
(including ami and hdb3) for the CE1 interface.
11
ZXR10(config-ctrl-interface-name)#pcm
Configures frame format (including
pcm30 and pcm31) for the CE1 interface in framed mode.
12
ZXR10(config-ctrl-interface-name)#threshold
Configures incorrect package
error-packet
threshold for the CE1 interface. Range: 1–65535.
: maximum suppress limit. Range: 1-600 seconds. Default: 20 seconds. : suppress limit. Range: 1-10000. Default: 2000. : reuse limit. Range: 1-2000. Default: 1000. : amount of time that must elapse to reduce the penalty by one half. Range: 1-100 seconds. Default: 5 seconds. 2. Creating a channel. Step
Command
Function
1
ZXR10(config)#controller
Enters controller configuration mode of CE1 interface.
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Step
Command
Function
2
ZXR10(config-ctrl-interface-name)#channelgr
Creates a framed channel.
oup timeslots ZXR10(config-ctrl-interface-name)#unframe
Creates an unframed channel.
: ID of the framed channel in CE1 interface. Range: 1-31. : time slot used by the framed channel. Range: 1-31. 3. Verify the configurations. Command
Function
ZXR10#show controller
Displays the information of the interface, alarm, and incorrect code of an effective CE1 interface.
ZXR10#show running-config controller[all]
Displays the configuration information of the CE1 interface.
– End of Steps –
10.3 CE1 Configuration Example Configuration Description As shown in Figure 10-1, ce1-0/1/3/1 of R1 is connected with ce1-0/4/3/13 of R2. It is required that R1 and R2 can be mutually pinged. Figure 10-1 CE1 Configuration Example
Configuration Flow 1. Configure controllers on both R1 and R2 to unframed controller and framed controller. 2. For an unframed controller, you can only enter the ce1-0/1/3/1:1 and ce1-0/4/3/13:1 interfaces to configure the IP addresses on both ends to be in the same network segment. 3. For a framed controller, you must configure channelgroup and timeslots of ce1 both on R1 and R2 to the same. 4. Enter the channelized interface of channelgroup on R1 and R2. In this example, ce1-0/1/3/1:2 and ce1-0/4/3/13:2 interfaces are used. Configure the IP addresses of both of the interfaces to be in the same network segment. 5. Test the configuration results. Ensure that R1 and R2 can be mutually pinged. 10-4 SJ-20140731105308-008|2014-10-20 (R1.0)
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Chapter 10 CE1 Configuration
Configuration Command The following example shows how to configure CE1 on R1: R1(config)#controller ce1-0/1/3/1 R1(config-ctrl-ce1-0/1/3/1)#unframe
/*Configure to Unframed mode*/
R1(config-ctrl-ce1-0/1/3/1)#exit R1(config)#interface ce1-0/1/3/1:1 R1(config-if-ce1-0/1/3/1:1)#no shutdown R1(config-if-ce1-0/1/3/1:1)#ip address 136.155.3.1 255.255.255.0 R1(config-if-ce1-0/1/3/1:1)#exit
R1(config)#controller ce1-0/1/3/1 R1(config-ctrl-ce1-0/1/3/1)#no unframe /*To configure unframed controller and framed controller on the same physical interface, run the no unframe command before configuring the framed controller*/ R1(config-ctrl-ce1-0/1/3/1)#channelgroup 2 timeslots 2 /*Configure framed channel ID and time slot*/ R1(config-ctrl-ce1-0/1/3/1)#exit R1(config)#interface ce1-0/1/3/1:2 R1(config-if-ce1-0/1/3/1:2)#no shutdown R1(config-if-ce1-0/1/3/1:2)#ip address 136.155.3.1 255.255.255.0 R1(config-if-ce1-0/1/3/1:2)#end
The following example shows how to configure CE1 on R2: R2(config)#controller ce1-0/4/3/13 R2(config-ctrl-ce1-0/1/3/13)#unframe
/*Configure to Unframed mode*/
R2(config-ctrl-ce1-0/1/3/13)#exit R2(config)#interface ce1-0/4/3/13:1 R2(config-if-ce1-0/4/3/13:1)#no shutdown R2(config-if-ce1-0/4/3/13:1)#ip address 136.155.3.2 255.255.255.0 R2(config-if-ce1-0/4/3/13:1)#exit
R2(config)#controller ce1-0/4/3/13 R2(config-ctrl-ctrl-ce1-0/1/3/13)#no unframe /*To configure unframed controller and framed controller on the same physical interface, run the no unframe command before configuring the framed controller*/ R2(config-ctrl-ctrl-ce1-0/1/3/13)#channelgroup 2 timeslots 2 /*Configure framed channel ID and time slot*/ R2(config-ctrl-ctrl-ce1-0/1/3/13)#exit R2(config)#interface ce1-0/4/3/13:2 R2(config-if-ce1-0/4/3/13:2)#no shutdown R2(config-if-ce1-0/4/3/13:2)#ip address 136.155.3.1 255.255.255.0 R2(config-if-ce1-0/4/3/13:2)#end
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Configuration Verification For unframed mode, the following are the verification results on R1: R1#ping 136.155.3.2 sending 5,100-byte ICMP echoes to 136.155.3.2,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 3/3/5 ms.
For unframed mode, the following are the verification results on R2: R2#ping 136.155.3.1 sending 5,100-byte ICMP echoes to 136.155.3.1,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 3/3/4 ms.
For framed mode, the following are the verification results on R1: R1#ping 136.155.3.2 sending 5,100-byte ICMP echoes to 136.155.3.2,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 39/40/42 ms.
For framed mode, the following are the verification results on R2: R2#ping 136.155.3.1 sending 5,100-byte ICMP echoes to 136.155.3.1,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 34/37/42 ms.
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Chapter 11
PPP Configuration Table of Contents PPP Overview ..........................................................................................................11-1 Configuring PPP.......................................................................................................11-3 PPP Configuration Example .....................................................................................11-5
11.1 PPP Overview PPP Introduction PPP is a widely used WAN protocol. It realizes point-to-point connections of router-to-router and host-to-network across synchronous and asynchronous circuits. PPP provides a set of solutions for problems of link establishment, maintenance, withdrawing, upper layer protocol negotiation, authentication, and so on. PPP comprises the following parts: l l
l
Link Control Protocol (LCP): It is responsible for establishing, maintaining and terminating a physical connection. Network Control Protocol (NCP): NCP is a stack of protocols. It is responsible for the network protocol running over the physical connection and solving the problems on the upper layer network protocol. Authentication protocol The common authentication protocols used in PPP include Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP). Generally, PAP and CHAP are encapsulated on serial links to provide security authentication.
PAP and CHAP PAP uses two-way handshake authentication. The user name and the password are transmitted in plain text on links. The procedure of PAP authentication is described below. 1. The authenticated device sends its user name and password to the authenticating device. 2. The authenticating device checks whether the user name and the password are correct according to the configuration, and then returns different response according to the result. CHAP is safer than PAP. It uses three-way handshake to check the identification of the remote node periodically. It uses inquiring messages to prevent twice-born attacks. The procedure of CHAP authentication is described below. 11-1 SJ-20140731105308-008|2014-10-20 (R1.0)
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1. The authenticating device sends some packets generated at random to the authenticated device. 2. The authenticated device uses its password and Message Digest 5 Algorithm (MD5) to encrypt the random packets, and then sends the cryptograph to the authenticating device. 3. The authenticating device uses its password saved for the authenticated device and MD5 to encrypt the primary random packets. It compares the cryptographs, and then returns different response according to the result.
PPP Features PPP protocol has two parts, LCP and NCP. They are used to negotiate to establish and maintain point-to-point link on interfaces (such as E1, T1, E3, T3 and POS). Meanwhile, LCP and NCP provide packet encapsulation format which is different from that of Ethernet protocol for upper layer protocols. For a upper layer protocol packet (such as IP packet, MPLS packet, and so on), a 2–bytes protocol field is encapsulated to the packet, and two PPP headers with a fixed value (0xFF03) is added. According to actual requirements, the PPP header can be compressed by negotiation. PPP negotiation has three stages, LCP, authentication (optional) and NCP. l
l
Authentication stage can be selected according to the actual requirements. Generally, authentication is applied on access routers to authenticate and authorize access of users. NCP includes IP Control Protocol (IPCP), IPv6CP and MPLSCP, OSINLCP, Border Gateway Protocol (BGP), and so on. Negotiation is necessary for IPCP (supporting IPv4), but other NCP protocols can be selected according to actual requirements. After IPCP negotiation is successful, the protocol be set up on a PPP port.
Compared with Ethernet encapsulation: l
l
l
PPP has higher bandwidth use rate. For shorter packets, the effect is more obvious. Additionally, compared with Ethernet encapsulation, the encapsulation of a PPP packet header is more simple. Complex MAC header encapsulation and decapsulation is removed from the mechanism of packet sending and receiving. PPP protocol state machine is more complex than that of Ethernet, because PPP protocol is set up after the negotiation is successful on an interface. After that, the upper layer can send and receive service packets. By default, the protocol state is in down state on an interface after a PPP interface is created. After PPP negotiation is successful, the interfaces will be in up state. After PPP link negotiation is successful, both sides will send LCP keepalive packets periodically. If one side fails to receive ECHO response packets after N (N >= 1) keepalive request packets are sent by the other side, the link will be in down state. Meanwhile, the protocol state is down. The operations (such as route recalculation, route update, and so on) are triggered.
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Chapter 11 PPP Configuration
11.2 Configuring PPP This section describes the configuration steps and commands of PPP.
Steps 1. Configure the encapsulation mode of a POS interface to ppp. Step
Command
Function
1
ZXR10(config)#interface
Enters POS interface configuration mode.
2
ZXR10(config-if-interface-name)#encapsulation
Configures the encapsulation
{hdlc | ppp | frame-relay}
mode on a POS interface. Here, select ppp mode.
2. Configure the PPP. Step
Command
Function
1
ZXR10(config)#ppp
Enters PPP configuration mode.
2
ZXR10(config-ppp)#interface
Enters PPP interface configuration mode.
3
4
ZXR10(config-ppp-if-interface-name)#ppp
Configures PPP authentication
authentication {pap | chap}
mode, PAP or CHAP.
ZXR10(config-ppp-if-interface-name)#ppp
Configures the local router domain
chap hostname
name. By default, the local router domain name is not configured.
5
ZXR10(config-ppp-if-interface-name)#ppp
Configures the local router
chap password {| encrypted }
password. By default, the local router password is not configured. The encrypted password consists of 1–200 characters.
6
7
ZXR10(config-ppp-if-interface-name)#ppp
Establishes a PPP link with the
open
peer router on its own initiative.
ZXR10(config-ppp-if-interface-name)#ppp pap
Configures PAP user name (1-159
sent-username password {|
bytes) and password (1-31 bytes).
encrypted }
By default, PAP user name and password are not configured. The encrypted password consists of 1–120 characters.
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Step
Command
Function
8
ZXR10(config-ppp-if-interface-name)#ppp
Configures timeout interval for
timeout negotiation []
PPP negotiation. By default, the negotiation timeout interval is 5 seconds, in the range of 1–30 seconds.
9
ZXR10(config-ppp-if-interface-name)#ppp
Configures timeout interval of
timeout authentication []
authentication on a PPP link. By default, the timeout interval of authentication is 5 seconds, in the range of 1–30 seconds.
10
ZXR10(config-ppp-if-interface-name)#keepa
Configures the interval to send
live [| disable]
keepalive packets of a PPP link. By default, the interval to send keepalive packets is 10 seconds, in the range of 1–32767 seconds.
11
ZXR10(config-ppp-if-interface-name)#ppp
Configures the maximum number
max-echo
of echo packets sent when the device does not receive any echo response from the peer. By default, the number of echo packets is 5, in the range of 1–10.
12
ZXR10(config-ppp-if-interface-name)#ppp
Enables or disables the NCP
ipcp
negotiation option IPCP of a PPP link.
13
ZXR10(config-ppp-if-interface-name)#ppp bcp
Enables or disables the NCP
negotiation option BCP of a PPP link.
14
ZXR10(config-ppp-if-interface-name)#ppp
Enables or disables the NCP
mplscp
negotiation option MPLSCP of a PPP link.
15
16
ZXR10(config-ppp-if-interface-name)#bind-i
Binds the IP pool and assigns an
p-pool
IP address to the peer.
ZXR10(config-ppp-if-interface-name)#ip-acces
Configures the IPCP access type
s-type
of a PPP link: ipv4 and ipv6. Default: dual, that is, both types are supported.
3. Verify the configurations.
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Chapter 11 PPP Configuration
Command
Function
ZXR10#show ip interface [brief [phy
Views interface information.
||[{exclude | include}]]] ZXR10#show ppp multilink []
Displays the abstract in the PPP multilink.
4. Maintain the PPP. Command
Function
ZXR10#debug ppp all
Enables all debugging functions of PPP.
ZXR10#debug ppp authentication [interface
Enables the function for debugging PPP
]
authentication.
ZXR10#debug ppp error [interface ]
Enables the function for debugging PPP error information.
ZXR10#debug ppp events [interface
Enables the function for debugging PPP
]
events.
ZXR10#debug ppp lcp [interface ]
Enables the function for debugging PPP LCP packet analysis output.
ZXR10#debug ppp ncp [interface ]
Enables the function for debugging PPP NCP packet analysis output.
ZXR10#debug ppp packet [interface
Enables the function for debugging PPP
]
control packets output.
ZXR10#show debug ppp
Shows all enabled PPP debugging.
– End of Steps –
11.3 PPP Configuration Example Configuration Description As shown in Figure 11-1, R1 and R2 are directly connected through the interfaces POS192-0/1/0/1 and POS192-0/2/0/1. PPP authentication is enabled between R1 and R2. It is required that R1 and R2 can ping each other successfully. Figure 11-1 PPP Configuration Example
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ZXR10 M6000-S Configuration Guide (Interface Configuration)
Configuration Flow 1. Configure IP address on the POS192 interfaces of R1 and R2. 2. Configure authentication mode on the POS192 interfaces of R1 and R2. 3. Test the configuration to check whether R1 and R2 can ping each other successfully.
Configuration Command The configuration of R1: R1(config)#interface pos192-0/1/0/1 R1(config-if-pos192-0/1/0/1)#ip address 11.12.13.14 255.255.255.0 R1(config-if-pos192-0/1/0/1)#exit R1(config)#ppp R1(config-ppp)#interface pos192-0/1/0/1 R1(config-ppp-if-pos192-0/1/0/1)#ppp authentication pap R1(config-ppp-if-pos192-0/1/0/1)#ppp pap sent-username zte password zte R1(config-ppp-if-pos192-0/1/0/1)#end
The configuration of R2: R2(config)#interface pos192-0/2/0/1 R2(config-if-pos192-0/2/0/1)#ip address 21.22.23.24 255.255.255.0 R2(config-if-pos192-0/2/0/1)#exit R2(config)#ppp R2(config-ppp)#interface pos192-0/2/0/1 R2(config-ppp-if-pos192-0/2/0/1)#ppp authentication pap R2(config-ppp-if-pos192-0/2/0/1)#ppp pap sent-username zte password zte R2(config-ppp-if-pos192-0/2/0/1)#
Configuration Verification Check the configuration result on R1, as shown below. R1#ping 21.22.23.24 sending 5,100-byte ICMP echoes to 21.22.23.24,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5), round-trip min/avg/max= 129/185/200ms.
R1#show running-config-interface pos192-0/1/0/1 ! interface pos192-0/1/0/1 ip address 11.12.13.14 255.255.255.0 no shutdown $ ! ! ppp
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Chapter 11 PPP Configuration interface pos192-0/1/0/1 ppp authentication pap ppp pap sent-username zte password encrypted QYOXzHFY98jEIFmivoT6mA== $ $ !
Check the configuration result on R2, as shown below. R2#ping 11.12.13.14 sending 5,100-byte ICMP echoes to 21.22.23.24,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5), round-trip min/avg/max= 129/185/200ms.
R2#show running-config-interface pos192-0/2/0/1 ! interface pos192-0/2/0/1 ip address 21.22.23.24 255.255.255.0 no shutdown $ ! ! ppp interface pos192-0/2/0/1 ppp authentication pap ppp pap sent-username zte password encrypted QYOXzHFY98jEIFmivoT6mA== $ $ !
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Chapter 12
HDLC Configuration Table of Contents HDLC Overview .......................................................................................................12-1 Configuring HDLC ....................................................................................................12-3 HDLC Configuration Examples.................................................................................12-4
12.1 HDLC Overview HDLC Introduction HDLC is a type of link layer protocol. It provides transparent point-to-point transmission for the upper layer protocol (IP). It is parallel to other Layer 2 protocols (such as PPP, FR, and so on) and provides services meeting different requirements for the upper layer protocol. The hierarchy of HDLC in the protocol stack is shown in Figure 12-1. Figure 12-1 Hierarchy of HDLC in Protocol Stack
HDLC can aggregate several POS interfaces encapsulated with HDLC into a POSgroup logical interface. On ZXR10 M6000-S, posgroup provides more flexible and effective solutions about network architecture for users. It brings more flexibility in network planning and network architecture designing with ZXR10 series products. It also improves the network stability greatly, especially for Ethernet and network environments in which Ethernet interfaces are used. POSgroup function can extend bandwidth, which makes the cost to construct network more reasonable. l
POSgroup can improve the communication ability of the links. It aggregates several POS interfaces into an interface. The bandwidth of a POSgroup interface is the bandwidth sum of the member interfaces. In this way, the interface bandwidth is increased. 12-1
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l l l l
Posgroup supports the aggregation of POS interfaces across boards and of different speeds. POSgroup supports two modes of load sharing, per-packet mode and per-destination mode. 64 POSgroup interfaces can be configured at most. There are 16 POS interfaces at most in each POSgroup interface.
HDLC Features HDLC provides a mechanism to detect whether the physical link works properly. It provides an encapsulation mode for the upper layer packets. HDLC supports encapsulation for IP packets and Intermediate System-to-Intermediate System (IS-IS) packets. In addition, HDLC can aggregate several POS interfaces encapsulated with HDLC into a logical interface with larger bandwidth, that is, implementing link aggregation of POS interfaces. Link aggregation means to aggregate several physical links with the same transmission medium and speed to form a data channel in logic. The POSgroup link aggregation is shown in Figure 12-2. Figure 12-2 POSgroup Link Aggregation
l l l
l
POSgroup link aggregation is to aggregate several physical POS interfaces into a logical interface with more bandwidth. The POS interfaces should be encapsulated with HDLC. The POSgroup interface is a Layer 3 interface encapsulated with HDLC. In forwarding of Layer 3 packets, except for the encapsulation of link layer protocol, the basic forwarding principle and mechanism of a POSgroup are the same with that of a SmartGroup. Link aggregation of POS interfaces is implemented by MHDLC, including POS interface aggregation, de-aggregation, state management of the aggregation interface, change of load sharing, and so on.
Devices of most vendors support CISCO HDLC. At present, ZTE devices also support CISCO HDLC. The main function of CISCO HDLC is to provide transparent transmission for the upper layer protocol. The chief characteristic of CISCO HDLC is simple and effective.
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Chapter 12 HDLC Configuration
12.2 Configuring HDLC This section describes the configuration steps and commands of HDLC protocol.
Steps 1. Configure the encapsulation mode of a POS interface to hdlc. Step
Command
Function
1
ZXR10(config)#interface
Enters POS interface configuration mode.
2
ZXR10(config-if-interface-name)#encapsulation
Configures the encapsulation
{ frame-relay | hdlc | ppp }
mode on a POS interface. Here, select hdlc mode.
2. Configure the HDLC protocol. Step
Command
Function
1
ZXR10(config)#hdlc
Enters HDLC configuration mode.
2
ZXR10(config-hdlc)#interface
Enters interface configuration mode from HDLC configuration mode.
3
ZXR10(config-hdlc-if-interface-name)#keepal
Configures the interval to send
ive [|disable]
HDLC link keepalive packets, in the unit of second, in the range of 1–32767. The default value is 10 seconds.
4
ZXR10(config)#interface
Creates a posgroup and enters posgroup interface configuration mode.
5
ZXR10(config)#mhdlc
Enters MHDLC configuration.
6
ZXR10(config-mhdlc)#interface
Enters MHDLC interface configuration mode.
7
ZXR10(config-mhdlc-member-if-interface-
Adds an interface to the posgroup
name)#posgroup
and sets the link aggregation mode.
8
ZXR10(config-mhdlc)#interface
Enters posgroup interface configuration mode from MHDLC configuration mode. The format of a posgroup name is "posgroup + group ID". The range of the group ID is 1-64.
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Step
Command
Function
9
ZXR10(config-mhdlc-sg-if-posgroup-name)#)#m
Configures the threshold for a
hdlc minimum-member
posgroup interface to be up, in the range of 1-16. By default, the value is 1, that is, as long as one member interface is up, the posgroup interface is up.
10
ZXR10(config-mhdlc-sg-if-posgroup-name)#)#m
Configures the load sharing mode
hdlc load-balance
of the aggregation group. The default mode is per-destination.
3. Verify the configurations. Command
Function
ZXR10#show ip interface [brief [phy ||[{exclude | include}]]] ZXR10#show mhdlc []
Views the current configuration and state of a posgroup interface.
4. Maintain the HDLC. Command
Function
ZXR10#debug hdlc { packet [interface]| all }
packet sending and receiving. Use the no format of this command to disable all HDLC debugging switches. Views the commands for HDLC
ZXR10#show debug hdlc
debugging functions that are enabled.
– End of Steps –
12.3 HDLC Configuration Examples 12.3.1 Basic HDLC Configuration Example Configuration Description As shown in Figure 12-3, the interface POS192-0/1/0/1 on R1 and the interface POS192-0/2/0/1 on R2 are directly connected. The interfaces are encapsulated with HDLC. It is required that R1 and R2 can ping each other successfully.
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Chapter 12 HDLC Configuration
Figure 12-3 Basic HDLC Configuration Example
Configuration Flow 1. Set the encapsulation type to frame-relay on the POS192 interfaces of R1 and R2. 2. Configure IP addresses on the POS192 interfaces of R1 and R2. The IP addresses are in the same segment. 3. Test the configuration to check whether R1 and R2 can ping each other successfully.
Configuration Command Configuration for R1: R1(config)#interface pos192-0/1/0/1 R1(config-if-pos192-0/1/0/1)#no shutdown R1(config-if-pos192-0/1/0/1)#encapsulation hdlc R1(config-if-pos192-0/1/0/1)#ip address 11.12.13.14 255.255.255.0 R1(config-if-pos192-0/1/0/1)#exit
Configuration for R2: R2(config)#interface pos192-0/2/0/1 R2(config-if-pos192-0/2/0/1)#no shutdown R2(config-if-pos192-0/2/0/1)#encapsulation hdlc R2(config-if-pos192-0/2/0/1)#ip address 11.12.13.15 255.255.255.0 R2(config-if-pos192-0/2/0/1)#exit
Configuration Verification Check the configuration result on R1, as shown below. R1#ping 11.12.13.15 sending 5,100-byte ICMP echoes to 11.12.13.15,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 129/185/200ms.
Check the configuration result on R2, as shown below. R2#ping 11.12.13.14 sending 5,100-byte ICMP echoes to 11.12.13.14,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 129/185/200ms.
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12.3.2 POSgroup Configuration Example Configuration Description As shown in Figure 12-4, the interfaces POS192-0/1/0/4 and POS192-0/1/0/1 on R1 are encapsulated with HDLC. These two interfaces are aggregated into posgroup1. The interfaces POS120/5/1/4 and POS192-0/5/1/1 on R2 are encapsulated with HDLC. These two interfaces are aggregated into posgroup2. It is required that R1 and R2 can ping each other successfully. Figure 12-4 POSgroup Configuration Example
Configuration Flow 1. Set the encapsulation type to HDLC on the POS192 interfaces of R1 and R2. 2. Create posgroup interfaces. Configure IP addresses on the POS192 interfaces of R1 and R2. The IP addresses are in the same segment. 3. Aggregate the POS interfaces to the POSgroups. 4. Test the configuration to check whether R1 and R2 can ping each other successfully.
Configuration Command Configuration for R1: R1(config)#interface pos192-0/1/0/1 R1(config-if-pos192-0/1/0/1)#no shutdown R1(config-if-pos192-0/1/0/1)#encapsulation hdlc R1(config-if-pos192-0/1/0/1)#exit R1(config)#interface pos192-0/1/0/4 R1(config-if-pos192-0/1/0/4)#no shutdown R1(config-if-pos192-0/1/0/4)#encapsulation hdlc R1(config-if-pos192-0/1/0/4)#exit R1(config)#interface
posgroup1
R1(config-if-posgroup1)#ip address 11.12.13.14 255.255.255.0 R1(config-if-posgroup1)#exit
R1(config)#mhdlc R1(config-mhdlc)#interface
pos192-0/1/0/1
R1(config-mhdlc-member-if-pos192-0/1/0/1)#posgroup 1 R1(config-mhdlc-member-if-pos192-0/1/0/1)#exit R1(config-mhdlc)#interface
pos192-0/1/0/4
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Chapter 12 HDLC Configuration R1(config-mhdlc-member-if-pos192-0/1/0/4)#posgroup 1 R1(config-mhdlc-member-if-pos192-0/1/0/4)#end
Configuration for R2: R2(config)#interface pos192-0/5/1/1 R2(config-if-pos192-0/5/1/1)#no shutdown R2(config-if-pos192-0/5/1/1)#encapsulation hdlc R2(config-if-pos192-0/5/1/1)#exit R2(config)#interface pos192-0/5/1/4 R2(config-if-pos192-0/5/1/4)#no shutdown R2(config-if-pos192-0/5/1/4)#encapsulation hdlc R2(config-if-pos192-0/5/1/4)#exit R2(config)#interface
posgroup2
R2(config-if-posgroup2)#ip address 11.12.13.15 255.255.255.0 R2(config-if-posgroup2)#exit
R2(config)#mhdlc R2(config-mhdlc)#interface
pos192-0/5/1/1
R2(config-mhdlc-member-if-pos192-0/5/1/1)#posgroup 2 R2(config-mhdlc-member-if-pos192-0/5/1/1)#exit R2(config-mhdlc)#interface
pos192-0/5/1/4
R2(config-mhdlc-member-if-pos192-0/5/1/4)#posgroup 2 R2(config-mhdlc-member-if-pos192-0/5/1/4)#end
Configuration Verification Check the configuration result on R1, as shown below. R1#ping 11.12.13.15 sending 5,100-byte ICMP echoes to 11.12.13.15,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 129/185/200ms.
Check the configuration result on R2, as shown below. R2#ping 11.12.13.14 sending 5,100-byte ICMP echoes to 11.12.13.14,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 129/185/200ms.
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Chapter 13
ICBG Configuration Table of Contents ICBG Overview ........................................................................................................13-1 Configuring an ICBG ................................................................................................13-1 ICBG Configuration Example....................................................................................13-2
13.1 ICBG Overview An Inter-Chassis Backup Group (ICBG) can be bound to an interface and a redundancy group to implement mapping between chassis. The master/backup relationship is determined through detection, and devices are notified to perform inter-chassis ARP backup. This saves the ARP learning procedure that takes a lot of time, saves the system costs, and ensures that traffic at the forwarding plane is not lost because there is no ARP entry after switchover.
13.2 Configuring an ICBG This procedure describes the steps and commands for configuring an ICBG.
Steps 1. Create an ICBG. Command
Function
ZXR10(config)#icbg
Creates an IGBG and enters ICBG configuration mode. : ICBG name.
2. Bind the ICBG to an interface in ICBG configuration mode. Command
Function
ZXR10(config-icbg-name)#bind interface
Binds the ICBG to an interface.
3. Bind the ICBG to a track. Command
Function
ZXR10(config-icbg-name)#track
Binds the ICBG to a track.
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4. Bind the ICBG to a redundancy group. Command
Function
ZXR10(config-icbg-name)#bind rg
Binds the ICBG to a redundancy group. : number of the bound redundancy group.
5. Configure the backup interval in ICBG configuration mode. Command
Function
ZXR10(config-icbg-name)#group-backup-interval
Configures the backup interval.
: backup interval (in minutes), range: 5–1440, default: 10.
6. Trigger backup in the ICBG immediately in ICBG configuration mode. Command
Function
ZXR10(config-icbg-name)#group-backup-immediately
Triggers backup in the ICBG immediately in ICBG configuration mode.
7. Query an ICBG. Command
Function
ZXR10(config)#show icbg []
If no ICBG is specified, this command displays information about all ICBGs. If the specified ICBG does not exist, the system returns an error.
– End of Steps –
13.3 ICBG Configuration Example Configuration Description As shown in Figure 13-1, an ICBG is configured on PE1 and PE2.
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Chapter 13 ICBG Configuration
Figure 13-1 ICBG Configuration Example
Configuration Flow 1. Configure interface addresses on PE1 and PE2 to establish an OSPF neighbor relationship. 2. Configure a redundancy group and ICCP connection between PE1 and PE2. 3. Configure a track on PE1 and PE2 each. 4. Bind the ICBG to the track and redundancy group on PE1 and PE2. 5. Trigger backup for the ICBG in ICBG configuration mode.
Configuration Commands Configuration for PE1: PE1(config)#interface loopback1 PE1(config-if-loopback1)#ip address 1.1.1.1 255.255.255.255 PE1(config-if-loopback1)#exit PE1(config)#interface gei-0/1/0/2 PE1(config-if-gei-0/1/0/2)#ip address 5.5.5.1 255.255.255.255 PE1(config-if-gei-0/1/0/2)#exit PE1(config)#router ospf 1 PE1(config-ospf-1)#router-id 1.1.1.1 PE1(config-ospf-1)#network 5.5.5.0 0.0.0.255 area 0 PE1(config-ospf-1)#network 1.1.1.1 0.0.0.0 area 0 PE1(config-ospf-1)#exit
PE1(config)#mpls ldp instance 1 PE1(config-ldp-1)#router-id loopback1 PE1(config-ldp-1)#exit PE1(config)#redundancy interchassis group 1 PE1(config-rg-1)#apply arp PE1(config-rg-1)#peer 2.2.2.2 PE1(config-rg-1)#exit
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ZXR10 M6000-S Configuration Guide (Interface Configuration) PE1(config)#samgr PE1(config-samgr)#track 1 interface gei-0/1/0/2 PE1(config-samgr)#exit
PE1(config)#icbg zte PE1(config-icbg-zte)#bind interface gei-0/1/0/2 PE1(config-icbg-zte)#bind rg 1 PE1(config-icbg-zte)#track 1
Configuration for PE2: PE2(config)#interface loopback1 PE2(config-if-loopback1)#ip address 2.2.2.2 255.255.255.255 PE2(config-if-loopback1)#exit PE2(config)#interface gei-0/1/0/2 PE2(config-if-gei-0/1/0/2)#ip address 5.5.5.2 255.255.255.255 PE2(config-if-gei-0/1/0/2)#exit PE2(config)#router ospf 1 PE2(config-ospf-1)#router-id 2.2.2.2 PE2(config-ospf-1)#network 5.5.5.0 0.0.0.255 area 0 PE2(config-ospf-1)#network 2.2.2.2 0.0.0.0 area 0 PE2(config-ospf-1)#exit
PE2(config)#mpls ldp instance 1 PE2(config-ldp-1)#router-id loopback1 PE2(config-ldp-1)#exit PE2(config)#redundancy interchassis group 1 PE2(config-rg-1)#apply arp PE2(config-rg-1)#peer 1.1.1.1 PE2(config-rg-1)#exit
PE2(config)#samgr PE2(config-samgr)#track 1 interface gei-0/1/0/2 PE2(config-samgr)#exit
PE2(config)#icbg zte PE2(config-icbg-zte)#bind interface gei-0/1/0/2 PE2(config-icbg-zte)#bind rg 1 PE2(config-icbg-zte)#track 1 PE2(config-icbg-zte)#group-backup-immediately
Configuration Verification Check the ICBG on PE1.
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Chapter 13 ICBG Configuration PE1(config)#show icbg ========================================== Total number of icbg:1 ========================================== Name
:zte
Track
:1
Interval
:10(min)
Interface :gei-0/1/0/2 Status
:master
Redundancy group:1 ------------------------------------------
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Chapter 14
Multilink Configuration Table of Contents Multilink Overview ....................................................................................................14-1 Configuring Multilink .................................................................................................14-2 Multilink Configuration Example ...............................................................................14-4
14.1 Multilink Overview Multilink Introduction As an optional feature of PPP, PPP Multilink Protocol (Multilink) allows PPP to bind multiple physical links into use like one high-performance link. It must be well prepared during the link configuration. During the operation, Multilink fragments all the PPP frames and transmits the PPP frame fragments through different physical links. Multilink is realized as a new sublayer in the PPP architecture. The Multilink sublayer is usually inserted into normal PPP mechanism and a network layer protocol using PPP. Therefore, the Multilink sublayer can obtain all the network layer data sent through PPP links. The received network layer data are then scattered to multiple physical links without causing interruption between the normal PPP mechanism and the network layer protocol of a PPP interface.
Multilink Features Multilink port is a virtual port and has all the functions of a normal layer-3 port. Multiple PPP ports are bound to the Multilink port, meaning that one Multilink virtual port corresponds to multiple PPP physical real ports (Multilink corresponds to multiple physical links). For relation between Multilink and PPP, refer to Figure 14-1. LCP is negotiated by each PPP independently. The configuration options carried by an LCP must include options corresponding to Multilink (such as MRRU, EPD, short sequence, and class header format.) After the successful LCP negotiation, NCP negotiation is started. The NCP negotiation is completed by the Multilink virtual port (the verifying flow of LCP is the same as that of a normal PPP port, and therefore related details are omitted in the following figure).
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Figure 14-1 Relation Between Multilink and PPP
Multilink has the following features. l
l
l
l
l
During the basic parameters negotiation in the LCP link creation, the following three configuration options are defined to negotiate the start of Multilink: Multilink Maximum Received Reconstructed Unit (MRRU), Multilink Short Sequence Number Header Format (SSNHF), and endpoint discriminator. Before the use of Multilink, at least Multilink MRRU has to be negotiated successfully on each link between two devices. Once the negotiation is completed, each physical link has an LCP link. The LCP links form a virtual bundle, and Multilink will be able to work. On a low-speed link, such as the traditional circuit E1/T1, multiple low-speed links can be bundled into one logical link through the Multilink protocol. To some extent, this increases the bandwidth. Comparing with an ordinary PPP packet in terms of encapsulation format, the long Multilink packet increases a 4-byte overhead, and the short Multilink packet increases a 4-byte overhead. To some extent, Multilink fragmentation and reconstruction will occupy many CPU resources.
14.2 Configuring Multilink This section describes the configuration steps and commands of multilink interface.
Steps 1. Create a multilink interface. Command
Function
ZXR10(config)#interface multilink
Creates a multilink interface. The interface ID range is 1–64.
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Chapter 14 Multilink Configuration
2. Configure a PPP interface and bind it to the multilink. Step
Command
Function
1
ZXR10(config)#ppp
Enters the PPP configuration mode.
2
3
4
ZXR10(config-ppp-interface-name)#interface
Enters the PPP interface
configuration mode.
ZXR10(config-ppp-if-interface-name)#multili
Binds the link to the specified
nk-group multilink
MPPP interface.
ZXR10(config-ppp-if-interface-name)#ppp
Sets the MPPP EPD attribute
multilink endpoint
in link negotiation to distinguish sub-links that belong to different MPPP links.
endpoint : Description string. Range: 1–16 bytes. The default is generated automatically based on certain rules. By default, endpoints of the sub-links in a multi link are the same. Parameter description for the command is as follows: 3. Configure parameters of MPPP. Step
Command
Function
1
ZXR10(config)#mppp
Enters the MPPP configuration mode.
2
ZXR10(config-mppp)#interface
Enters the MPPP interface configuration mode.
3
ZXR10(config-mppp-if-interface-name)#mppp
Configures the MPPP load sharing
load-balance {per-destination | per-packet}
mode. It is necessary to unbind the Multilink bundle before the configuration. The default load sharing mode is per destination.
4
ZXR10(config-mppp-if-interface-name)#mppp
Configures the MPPP
multilink fragmentation
fragmentation mode. It is necessary to unbind the Multilink bundle before the configuration. No fragmentation is by default.
5
ZXR10(config-mppp-if-interface-name)#mppp
Enables or disables the NCP
mplscp
negotiation option MPLSCP of a MPPP link.
per-destination | per-packet: Load sharing mode of a Multilink interface: per destination or per packet. Default: destination. 4. Verify the configurations. 14-3 SJ-20140731105308-008|2014-10-20 (R1.0)
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Command
Function
ZXR10#show ppp multilink []
Displays summary of a multilink.
5. Maintain the multilink. Command
Function
ZXR10#debug ppp all
Enables all the PPP debugging functions.
ZXR10#debug ppp authentication [interface
Enables the PPP authentication
]
debugging function.
ZXR10#debug ppp error [interface ]
Enables the PPP error debugging function.
ZXR10#debug ppp events [interface ]
Enables the PPP event debugging function.
ZXR10#debug ppp lcp [interface ]
Enables the PPP debugging function for LCP packet analysis and output.
ZXR10#debug ppp ncp [interface ]
Enables the PPP debugging function for NCP packet analysis and output.
ZXR10#debug ppp packet [interface ]
Enables the PPP control packet output debugging function. Views all the active PPP debugging
ZXR10#show debug ppp
functions.
– End of Steps –
14.3 Multilink Configuration Example Configuration Description As shown in Figure 14-2, the cpos3_e1-0/2/1/1.1/1/1:1 interface of R1 is directly connected to the cpos3_e1-0/2/1/2.1/1/1:1 interface of R2. The CPOS interfaces of R1 and R2 are respectively bound to the Multilink interface. It is required that R1 and R2 can successfully ping each other. Figure 14-2 Multilink Configuration Example
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Chapter 14 Multilink Configuration
Configuration Flow 1. Create a Multilink1 interface respectively on R1 and R2, and configure IP addresses in the same network segment or different network segments for the created interfaces. 2. Set the load sharing mode of the Multilink interfaces to per packet. 3. Bind the CPOS interfaces of R1 and R2 respectively to the Multilink 1 interfaces. 4. Test the configuration result to confirm that the Multilink interfaces between R1 and R2 can successfully ping each other.
Configuration Command Configuration on R1: R1(config)#interface multilink1 R1(config-if-multilink1)#ip address 11.12.13.14 255.255.255.0 R1(config-if-multilink1)#exit
R1(config)#mppp R1(config-mppp)#interface multilink1 R1(config-mppp-if-multilink1)#mppp load-balance per-packet R1(config-mppp-if-multilink1)#exit R1(config-mppp)#exit
R1(config)#interface cpos3_e1-0/2/1/1.1/1/1:1 R1(config-if-cpos3_e1-0/2/1/1.1/1/1:1)#no shutdown R1(config-if-cpos3_e1-0/2/1/1.1/1/1:1)#exit
R1(config)#ppp R1(config-ppp)#interface cpos3_e1-0/2/1/1.1/1/1:1 R1(config-ppp-if-cpos3_e1-0/2/1/1.1/1/1:1)#multilink-group multilink1 R1(config-ppp-if-cpos3_e1-0/2/1/1.1/1/1:1)#end
Configuration on R2: R2(config)#interface multilink1 R2(config-if-multilink1)#ip address 21.22.23.24 255.255.255.0 R2(config-if-multilink1)#exit
R2(config)#mppp R2(config-mppp)#interface multilink1 R2(config-mppp-if-multilink1)#mppp load-balance per-packet R2(config-mppp-if-multilink1)#exit R2(config-mppp)#exit
R2(config)#interface cpos3_e1-0/2/1/2.1/1/1:1 R2(config-if-cpos3_e1-0/2/1/2.1/1/1:1)#no shutdown R2(config-if-cpos3_e1-0/2/1/2.1/1/1:1)#exit
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ZXR10 M6000-S Configuration Guide (Interface Configuration) R2(config)#ppp R2(config-ppp)#interface cpos3_e1-0/2/1/2.1/1/1:1 R2(config-ppp-if-cpos3_e1-0/2/1/2.1/1/1:1)#multilink-group multilink1 R2(config-ppp-if-cpos3_e1-0/2/1/2.1/1/1:1)#end
Configuration Verification View the configuration on R1: R1#show running-config-interface cpos3_e1-0/2/1/1.1/1/1:1 ! interface cpos3_e1-0/2/1/1.1/1/1:1 no shutdown $ ! ! ppp interface cpos3_e1-0/2/1/1.1/1/1:1 multilink-group multilink1 $ $ !
R1#show running-config-interface multilink1 ! interface multilink1 ip address 11.12.13.14 255.255.255.0 $ ! ! mppp interface multilink1 mppp load-balance per-packet $ $ !
View the configuration on R2: R2#show running-config-interface cpos3_e1-0/2/1/2.1/1/1:1 ! interface cpos3_e1-0/2/1/2.1/1/1:1 no shutdown ! ! ! ppp
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R2#show running-config-interface multilink1 ! interface multilink1 ip address 21.22.23.24 255.255.255.0 $ ! ! mppp interface multilink1 mppp load-balance per-packet $ $ !
Verify the configuration on R1: R1#ping 21.22.23.24 sending 5,100-byte ICMP echo(es) to 21.22.23.24,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 5/7/10 ms.
Verify the configuration on R2: R2#ping 11.12.13.14 sending 5,100-byte ICMP echo(es) to 11.12.13.14,timeout is 2 seconds. !!!!! Success rate is 100 percent(5/5),round-trip min/avg/max= 7/7/10 ms.
The verification result suggests that the Multilink configuration is successful.
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Chapter 15
Interface Handover Configuration Table of Contents LAN/WAN Handover Overview .................................................................................15-1 Configuring Interface Handover ................................................................................15-2 Interface Handover Configuration Example ..............................................................15-2
15.1 LAN/WAN Handover Overview 10 G Ethernet can be used as LAN or WAN. Due to the difference of working environment between LAN and WAN. l
l
There are many differences between the requirements of indicators, including the requirements of clock oscillation, Bit Error Rate (BER) and QoS. Therefore, the standards of two different physical mediums are defined. There are some common points between the two physical layers, for example, they share the same MAC layer, only support full duplex, omit the CSMA/CD policy and use optical fiber as physical medium.
The physical layer of a 10 G LAN has the following features. It supports 802.3 MAC full duplex working mode. The frame format is the same as Ethernet frame format. The working rate is 10 Gb/s. The a 10 G LAN transmits Ethernet frames on the optical fiber directly. As LAN Ethernet uses Ethernet frame format, the transmission rate is 10 Gb/s. A 10 G WAN uses OC-192c (optical counterpoint of STS-192c) frame format to transmit data on links, and the transmission rate is 9.953280 Gb/s. At present, RP-02XGE-SFP+-S/RP-01XGE-SFP+-S supports 10 G LAN and 10 G WAN access. Here take RP-02XGE-SFP+-S as an example, RP-02XGE-SFP+-S consists of an optical interface module, a Physical layer (PHY) module, a Field Programmable Gate Array (FPGA) and an Erasable Programmable Logic Device (EPLD). The command can manually specify the line interface bard RP-02XGE-SFP+-S/RP-01XGE-SFP+-S to switch between 10G LAN access and 10G WAN access.
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15.2 Configuring Interface Handover This procedure describes the steps and commands for the LAN/WAN handover of an interface.
Steps 1. Configure the LAN/WAN handover of the interface. Step
Command
Function
1
ZXR10(config)#interface
Enters interface configuration mode.
2
ZXR10(config-if-interface-name)#port-mode
Configures the LAN/WAN
lan-wan {lan | wan}
handover.
Caution! If LAN/WAN attribute is not configured on a port, RP(S)-02XGE-SFP+-S will initialize the port to LAN mode. LAN/WAN handover will clear all upper layer configurations. During use, configure other configurations after the LAN/WAN mode is fixed. If configurations are configured before the LAN/WAN mode is fixed, all the configurations configured previously will be cleared.
2. Verify the configurations. Command
Function
ZXR10#show ip interface brief
Shows the port state. The "xgei" means LAN port mode, and "xgew" means WAN port mode.
– End of Steps –
15.3 Interface Handover Configuration Example Configuration Description On ZXR10 M6000-S, hand over a LAN mode to WAN mode on xgei-0/2/1/1.
Configuration Flow 1. Use the show version command to view the slot of the sub-card that is required to hand over. 2. Enter interface configuration mode from global configuration mode. 15-2 SJ-20140731105308-008|2014-10-20 (R1.0)
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Chapter 15 Interface Handover Configuration
3. Use the port-mode command to configure LAN/WAN mode handover.
Configuration Command Configuration on ZXR10 M6000-S: ZXR10(config)#interface xgei-0/2/1/1 ZXR10(config-if-xgei-0/2/1/1)#port-mode lan-wan wan ZXR10(config)#
Configuration Verification The handover result is shown below. ZXR10#show ip interface brief phy gei-0/2/0/1
unassigned
unassigned
up
up
up
gei-0/2/0/2
10.2.1.1
255.255.255.0
up
up
up
gei-0/2/0/3
unassigned
unassigned
down
down
down
gei-0/2/0/4
unassigned
unassigned
up
up
up
gei-0/2/0/5
unassigned
unassigned
down
down
down
gei-0/2/0/6
172.0.2.1
255.255.255.0
up
up
up
gei-0/2/0/7
unassigned
unassigned
up
up
up
gei-0/2/0/8
unassigned
unassigned
up
up
up
gei-0/2/0/9
unassigned
unassigned
up
up
up
gei-0/2/0/10
unassigned
unassigned
up
up
up
xgeiw-0/2/1/1
unassigned
unassigned
down
down
down
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Chapter 16
Port Damping Configuration Table of Contents Port Damping Overview............................................................................................16-1 Configuring the Port Damping Function ....................................................................16-1 Port Damping Configuration Example.......................................................................16-3
16.1 Port Damping Overview In network applications, device interfaces are switched frequently from up state to down state because of many reasons (such as physical signal disturbing, link layer configuration error and so on). Thus, the routing protocols, MultiProtocol Label Switching (MPLS) and so on are oscillated repeatedly, which influence on device and network heavily. Damping controls the frequent interface up/down events to make the appearance probability less than a certain frequency. In this way, device and network stability are not influenced . Port damping restrains the frequent up/down events on interface in the following aspects, 1. The penalty value of the port is added when its state turns to down. 2. The up/down state switching will not be reported if the penalty value exceeds the suppression threshold value. 3. Penalty value is reduced automatically as the time goes on. It is similar to element attenuation. Half-time decides damping decrement. The penalty value is attenuated in every 500ms. 4. Port damping will be cancelled on interface when the penalty value attenuates to the reuse threshold value. The penalty value will be set as 0 if the penalty value attenuates to or less than 50% of reuse threshold value. 5. The suppression time will be calculated when port damping starts. Port damping will be canceled if the down event is not received in the maximum suppression time. 6. Port state will not be reported unless up/down event occurs. 7. System will give an alarm when port damping is started, and a recovery alarm will be given when port Damping is cancelled.
16.2 Configuring the Port Damping Function This procedure describes the steps and commands for configuring the damping function of an interface.
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ZXR10 M6000-S Configuration Guide (Interface Configuration)
Steps 1. Activate the port damping function. Perform the following steps to activate the port damping function on a port of the ZXR10 M6000-S. The port damping function is activated by default. Step
Command
Function
1
ZXR10(config)#interface
Enters interface configuration mode.
2
Enables the port damping
ZXR10(config-if-interface-name)#damping enable
function on a port.
2. Set port damping attributes. Damping attributes are the maximum damping duration, damping threshold, reuse threshold, and half-life. To set damping attributes on a port of the ZXR10 M6000-S, perform the following steps after the port damping function is activated. Command
Function
ZXR10(config-if-interface-name)#damping
Sets the port damping attributes
on a port after the port damping function is activated.
: maximum damping duration (s). Range: 1–600. Default: 20. : damping threshold (s). Range: 1–10000. Default: 2000. : reuse threshold (s). Range: 1–2000. Default: 1000. : half-life (s). Amount of time that must elapse to reduce the penalty by one half. Range: 1–100. Default: 5.
Note: Configuration requirements: is greater than , and is greater than .
3. Verify the configurations. Command
Function
ZXR10#show damping
Displays port damping attributes.
The information to be displayed includes port type, physical address of port, flap times, port damping times, the current penalty value, the maximum penalty value, the port 16-2 SJ-20140731105308-008|2014-10-20 (R1.0)
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Chapter 16 Port Damping Configuration
is suppressed or not, the maximum damping time, damping threshold value, reuse threshold value, and half-life. – End of Steps –
16.3 Port Damping Configuration Example Configuration Description As shown in Figure 16-1, the state of R1 interface switches from up to down frequently because the signal coming from oscillation source is unstable. Enable port damping function on R1 interface. Figure 16-1 Port Damping Function Configuration Example Topology
Configuration Flow Configure port damping function in the following steps. 1. Enter interface configuration mode. 2. Enable port damping function on R1 port (Port damping function is enabled by default). 3. Set port damping attributes.
Caution! By default, the damping function is enabled for all ports. You can run the show damping command to view the damping function state of interfaces.
Configuration Command Configuration on R1: R1(config)#interface gei-0/2/1/3 R1(config-if-gei-0/2/1/3)#damping enable R1(config-if-gei-0/2/1/3)#damping 20 2000 1000 5 R1(config-if-gei-0/2/1/3)#end
Configuration Verification View the configuration on R1, as shown below. R1#show portdamping gei-0/2/1/3 ===================================================================
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ZXR10 M6000-S Configuration Guide (Interface Configuration) Flaps
:Displays the number of times that an interface has flapped.
Penalty
:Displays the accumulated penalty.
MaxSTm
:Displays the maximum suppress.
SuppV
:Displays the suppress threshold.
ReuseV
:Displays the reuse threshold.
HalfL
:Displays the half-life counter.
MaxPenalty :Displays the maximum penalty. DampNum
:Displays the number of dampening.
Suppress
:Indicates if the interface is dampened(F:FALSE,T:TRUE).
==================================================================== gei-0/2/1/3 MaxSTm SuppV ReuseV HalfL MaxPenalty DampNum Suppress Penalty Flaps ==================================================================== 20
2000
1000
5
16000
0
F
0
0
--------------------------------------------------------------------
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Chapter 17
Other Interfaces Configuration Logical interfaces are manually configured interfaces which do not physically exist. The ZXR10 M6000-S supports the following logical interfaces, loopback, NULL, Ulei, Tunnel, SDU, SuperVLAN, and SmartGroup interfaces. These logical interfaces share the following features: 1. There is no corresponding physical interface, though mapping relationships sometimes exist between the real and logical interfaces. 2. Logical interfaces (except NULL interfaces) cannot be automatically generated accompanied with physical interfaces. They have to be created manually in accordance with actual requirements.
Table of Contents Configuring a Loopback Interface .............................................................................17-1 Configuring a NULL Interface ...................................................................................17-4 Configuring a ULEI Interface ....................................................................................17-6 Configuring a Tunnel ................................................................................................17-8
17.1 Configuring a Loopback Interface The loopback interface is a virtual interface that is most widely applied. After being created, the loopback interface maintains in UP status and can be looped back. It is commonly used to stabilize the configuration.
Context A loopback interface has the following usage: l
l
After planning the network architecture, the system administrator creates a loopback interface for each router and assigns an IP address for each loopback interface. The system administrator logs in to a router through the corresponding loopback IP address by using the Telnet application. Since the loopback interface is always on UP status after being created, the IP address of the loopback interface functions as a device name. The loopback interface does not interconnect with the peer end. Therefore, the IP address of the loopback interface is set as a 32-digit mask. The IP address of loopback interface acts as Router-ID of dynamic routing protocol (such as OSPF and BGP).
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In dynamic routing protocol running process (OSPF and BGP), a Router-ID needs to be specified to act as the unique identifier of the router. The Router-ID is unique in the entity autonomous system. The Router-ID is a 32-bit unsigned integer, which is very similar to an IP address. The IP address cannot be repeated, therefore, Router-ID is usually specified to be the IP address of a interface on router. The IP address of a loopback interface is usually regarded as the identifier of a router, so it is the best choice of Router-ID. l
It can act as the source address of the BGP to create the TCP connection. In BGP, the neighborhood is created by TCP connection between two routers running BGP. Specify loopback interfaces to be the source addresses to create TCP connection. It is usually applied to Interior Border Gateway Protocol (IBGP), which can enhance the robustness of TCP connection.
l
The loopback interface can be used to configure a black hole routing. The black hole routing configured by using the loopback interface can discard the messages sent to the loopback interface.
Steps 1. Configuring a loopback interface. Step
Command
Function
1
ZXR10(config)#interface {| byname
Enters interface configuration
}
mode, configures the loopback interface. The loopback range is 1–64.
2
ZXR10(config-if-interface-name)#ip address {|}[|
and mask of the loopback
secondary]
interface.
2. Verify the configurations. Command
Function
ZXR10#show ip interface
Shows IP interface
ZXR10#show running-config-interface
Shows the configuration information of the interface
– End of Steps –
Example of Configuring a Black Hole Routing by Using the Loopback Interface l
Configuration description A loopback interface usually acts as the next hop of the routing, which can have the effect of black hole route. 17-2
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Chapter 17 Other Interfaces Configuration
Figure 17-1 shows an example of configuring a black hole routing on R1 to introduce the 192.11.1.2 host route to the black hole routing. Figure 17-1 Loopback Interface Configuration Example
l
l
Configuration flow 1. Create the loopback interface and configure the IP address. 2. Configure the loopback interface to be the next hop of the routing. Configuration command The following shows the configuration of R1: R1(config)#interface loopback?
R1(config)#interface loopback1 R1(config-if-loopback1)#ip address 192.1.1.2 255.255.255.0 R1(config-if-loopback1)#exit R1(config)#ip route 192.11.1.2 255.255.255.255 loopback1
l
Configuration verification Run the show command to verify the configuration: R1(config)#show running-config-interface loopback1 ! interface loopback1 ip address 192.1.1.2 255.255.255.0 $ ! ! ip route 192.11.1.2 255.255.255.255 loopback1 !
R1(config)#show ip forwarding route 192.11.1.2 IPv4 Routing Table: status codes: *valid, >best Dest *> 192.11.1.2/32
Gw
Interface
Owner
Pri Metric
192.1.1.2
loopback1
static
1
0
Example of Using the Loopback Interface as Router-ID l
Configuration description Figure 17-2 shows an example of using the loopback interface as Router-ID on R1.
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Figure 17-2 Loopback Interface Acting as Router-ID
l
l
Configuration flow 1. Create a loopback interface and configure IP address. 2. Configure the loopback interface as Router-ID of routing protocol. Configuration command The following shows the configuration of R1: R1(config)#interface loopback1 R1(config-if-loopback1)#ip adderss 1.1.1.2 255.255.255.255 R1(config-if-loopback1)#exit R1(config)#interface gei-0/1/0/1 R1(config-if-gei-0/1/0/1)#ip address 30.0.0.1 255.255.255.252 R1(config-if-gei-0/1/0/1)#exit R1(config)#interface gei-0/1/0/2 R1(config-if-gei-0/1/0/2)#ip address 30.0.2.1 255.255.255.252 R1(config-if-gei-0/1/0/2)#exit R1(config)#router ospf 10 R1(config-ospf-10)#router-id 1.1.1.2 R1(config-ospf-10)#network 30.0.0.0 0.0.0.3 area 0 R1(config-ospf-10)#redistribute connected R1(config-ospf-10)#exit
17.2 Configuring a NULL Interface This procedure describes the application scenario and configuration of a NULL interface.
Context The NULL interface is a logical interface that cannot be configured with an IP address. The NULL interface can be used in the BGP to save an IP address, and it also can be used to configure a black hole routing for avoiding loops. All the data packets transmitting to the NULL interface are discarded. For example, all the packets transmitting to 192.101.0.0 will be discarded by running the ip route 192.101.0.0 255.255.0.0 null1 command.
Steps 1. Configure a NULL interface. The system automatically creates a NULL1 interface. It needs no configuration and cannot be deleted. 17-4 SJ-20140731105308-008|2014-10-20 (R1.0)
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Chapter 17 Other Interfaces Configuration
2. Check the configuration information of the NULL interface. Command
Function
ZXR10#show running-config-interface
Shows the information of the NULL interface.
– End of Steps –
Example The following example shows how to configure a NULL interface. l
Configuration description The NULL interface does not forward any packet. All the packets transmitting to the NULL interface are discarded. The NULL interface is usually used for: à
Prevent route ring.
à
Filter traffic.
The NULL interface usually acts as the next hop of the routing, which has the effect of black hole route. Figure 17-3 shows an example of constructing a blackhole routing on R1 to introduce the 192.11.1.2 host route to the black hole routing. Figure 17-3 NULL Interface Configuration Example
l
Configuration flow Configure NULL interface as the next hop of static route.
l
Configuration command The following shows the configuration of R1: R1(config)#ip route 192.11.1.2 255.255.255.255 null?
R1(config)#ip route 192.11.1.2 255.255.255.255 null1
l
Configuration verification Run the show command to verify the configuration: R1(config)#show running-config-interface null1 ! interface null1 $ ! ! ip route 192.11.1.2 255.255.255.255 null1
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ZXR10 M6000-S Configuration Guide (Interface Configuration) !
R1(config)#show ip forwarding route 192.11.1.2 IPv4 Routing Table: status codes: *valid, >best Dest *> 192.11.1.2/32
Gw
Interface
Owner
Pri Metric
0.0.0.0
null1
static
1
0
17.3 Configuring a ULEI Interface This procedure describes the application scenario of HLEI interfaces and steps and commands for configuring a ULEI interface.
Context A Universal Logical Ethernet Interface (ULEI) is a logical interface with Ethernet attributes. The ULEI interface supports all Ethernet services (sub-interfaces, VLAN, QINQ, L2VPN, L3VPN, routing, BFD, and MSTP). The ULEI interface implements the following purposes: l
VPN bridging between layer 2 and layer 3. That is, layer-2 VPN is terminated to layer-3 VPN on a device. Implementing bridging between layer 2 and layer 3, a ULEI interface must be created on an ETH board. A service bridging virtual link (SVB) is established between two ULEI interfaces on an ETH board, and the two ULEI interfaces are bound with L2VPN and L3VPN respectively.
l
Non-Ethernet interface implementing the ETH service. The ULEI supports FR, ATM, and other bridging ETH services after being extended. The ULEI is used to shield differences among various interfaces. Thus physical interfaces are not sensed during services. Implementing the heterogeneity of the ETH service, a ULEI interface must be created on a POS board. After the POS interface is mapped to the ULEI interface, the ULEI interface implements the ETH service.
Steps 1. Configure a ULEI interface. Step
Command
Function
1
ZXR10(config)#request interface [ulei_name]
Creates a ULEI interface.
2
ZXR10(config)#interface [ulei_name]
Enters ULEI interface configuration mode.
2. Map the POS interface to the ULEI interface.
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Chapter 17 Other Interfaces Configuration
Step
Command
Function
1
ZXR10(config)#ppp
Enters PPP configuration mode.
2
ZXR10(config-ppp)#interface
Enters PPP configuration mode. [pos_name] is the name of the POS interface.
3
Disables IPCP function.
ZXR10(config-ppp-if-interface-name)#no ppp
ipcp enable 4
Enables the BCP function.
ZXR10(config-ppp-if-interface-name)#ppp bcp
enable 5
ZXR10(config)#interface [pos_name]
Enters POS interface configuration mode.
6
ZXR10(config-if-interface-name)#map to
Maps the POS interface to the
ULEI interface. is the name of the ULEI interface.
3. Verify the configurations. Command
Function
ZXR10(config)#show running-config portmap
Displays the situation that a POS interface is being mapped to a ULEI interface. portmap is the name of the POS mapping module.
ZXR10(config)#show running-config interface
Displays configuration of the ULEI interface.
– End of Steps –
ULEI interface Configuration Example l
Configuration description Configure the mapping between a ULEI interface and a POS interface on the router.
l
l
Configuration flow 1. Enter PPP mode to configure a POS interface. 2. Create a ULEI interface. 3. Associate the ULEI interface with the POS interface. Configuration command Configuration for the router: ZXR10(config)#ppp ZXR10(config-ppp)#interface pos192-0/7/0/2 ZXR10(config-ppp-if-pos192-0/7/0/2)#no ppp ipcp enable ZXR10(config-ppp-if-pos192-0/7/0/2)#ppp bcp enable ZXR10(config-ppp-if-pos192-0/7/0/2)#exit
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ZXR10 M6000-S Configuration Guide (Interface Configuration) ZXR10(config-ppp)#exit
ZXR10(config)#request interface ulei-0/7/0/1 ZXR10(config)#interface ulei-0/7/0/1 ZXR10(config-if-ulei-0/7/0/1)#no shutdown ZXR10(config-if-ulei-0/7/0/1)#exit
ZXR10(config)#interface pos192-0/7/0/2 ZXR10(config-if-pos192-0/7/0/2)#map-to ulei-0/7/0/1 ZXR10(config-if-pos192-0/7/0/2)#exit
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Configuration verification Use the show command to verify the mapping configuration. ZXR10#show running-config portmap ! interface pos192-0/7/0/2 map-to ulei-0/7/0/1 $ !
17.4 Configuring a Tunnel This procedure describes the application scenario of Tunnel interfaces and steps and commands for configuring a Tunnel interface.
Context Tunnel is a type of encapsulation technology that uses a network protocol to transmit another network protocol. That is, the tunnel technology uses a network transmission protocol to encapsulate data packets generated by other protocols in its own packets, and then transmits them in the network. At present, the tunnels supported by the ZXR10 M6000-S include GRE_tunnel, TE_tunnel, and v6_tunnel. l
GRE_tunnel The Generic Routing Encapsulation (GRE) is a mechanism for encapsulating a packet of one protocol into a packet of another protocol. This enables packets to be transmitted across different networks. Channels over which packets are transmitted across different networks are called tunnels. The GRE can also acts as Layer–3 tunneling protocol of the VPN, providing a transparent channel for VPN data. The process of transmitting packets through a GRE tunnel includes encapsulation and decapsulation processes. After receiving the data that needs to be encapsulated and routed over any network layer protocol (such as IPX), the system first adds a GRE packet header to the data to form a GRE packet, and then encapsulates the packet over another protocol (such as 17-8
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Chapter 17 Other Interfaces Configuration
IP). As specified by the GRE encapsulation specification, the GRE can encapsulate Layer-2 frames (such as PPP frames and MPLS) besides IP packets. l
TE_Tunnel The RSVP is an advertisement mechanism for reserved resources used across the network. It is not a routing protocol. Routing decisions are made by the IGP protocol, the IGP TE extension, and the CSPF. The RSVP is only used to advertise and maintain reserved resources on the network. The TE-extended RSVP protocol is called the RSVP-TE protocol, which can be used in MPLS-TE signaling. The process of establishing a tunnel for RSVP-TE signaling is as follows:
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1. The head end of a tunnel sends a Path message to the next hop along the calculated path to advertise the procedure of establishing a tunnel. 2. After receiving the Path message, the downstream router performs admission control, including checking the validity of the message and the resource requested by the message. If admission control is successful, the downstream router generates a new Path message and sends it to the next hop in the Explicit Route Object (ERO). 3. The tail end of the tunnel also performs admission control. Knowing that the local router is the destination of the Path message, the tail end returns a Resv message to the upstream router, carrying the flag used when the upstream router sends the packet to the local router. 4. After receiving the Resv message, each node reserves resources based on the resource requirement of this message, writes the forwarding table based on the flag carried by this message, generates a new Resv message, and sends it to the upstream router. After the new Resv message arrives at the head node, the establishment of a tunnel is completed. v6_tunnel The IPv6 over IPv4 tunneling mechanism first encapsulates an IPv4 packet header for an IPv6 packet, and makes the IPv6 packet pass through the IPv4 network through a tunnel. This interconnects isolated IPv6 networks. A tunnel can be established between host-host, host-device, device-host, and device-device. The termination of a tunnel may be the destination of an IPv6 packet, and the IPv6 packet may be further forwarded. Based on the methods for obtaining the IPV4 address of a tunnel termination, tunnels are divided into "self-defined tunnels" and "auto tunnels". For IPv4/IPv6 over IPv6 tunnels, the protocol encapsulates IPv4 or IPv6 packets to enable encapsulated packets to be transmitted over another IPv6 network. These encapsulated packets are IPv6-tunnel packets.
Steps 1. Configuring a Tunnel. Run the following command to configure a GRE tunnel on the ZXR10 M6000-S: 17-9 SJ-20140731105308-008|2014-10-20 (R1.0)
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Command
Function
ZXR10(config)#interface gre_tunnel
Creates a GRE_tunnel. is the number of the GRE tunnel, ranging from 1 to 4000.
Run the following command to configure a TE tunnel on the ZXR10 M6000-S: Command
Function
ZXR10(config)#interface te_tunnel
Creates a TE_tunnel. is the number of the TE tunnel, ranging from 1 to 97535.
Run the following command to configure a v6 tunnel on the ZXR10 M6000-S: Command
Function
ZXR10(config)#interface v6_tunnel
Creates a v6_tunnel. is the number of the v6 tunnel, ranging from 1 to 3072.
2. Verify the configurations. Command
Function
ZXR10(config)#show ip interface gre_tunnel ZXR10(config)#show ip interface te_tunnel ZXR10(config)#show ip interface v6_tunnel
– End of Steps –
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Configuration description For how to configure a tunnel interface on a router, and detailed tunnel applications, refer to the ZXR10 M6000-S Carrier-Class Router Configuration Guide (MPLS), ZXR10 M6000-S Carrier-Class Router Configuration Guide (VPN), and ZXR10 M6000-S Carrier-Class Router Configuration Guide (IPv6).
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Configuration flow 1. Enter tunnel interface configuration mode. 2. Configure the related attributes. Configuration command Configuration for the router: 17-10
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Chapter 17 Other Interfaces Configuration ZXR10(config)#interface te_tunnel1 ZXR10(config-if-te_tunnel1)#ip unnumbered loopback1 ZXR10(config-if-te_tunnel1)#exit ZXR10(config)#interface gre_tunnel1 ZXR10(config-if-gre_tunnel1)#ip unnumbered loopback1 ZXR10(config-if-gre_tunnel1)#exit ZXR10(config)#interface v6_tunnel1 ZXR10(config-if-v6_tunnel1)#exit
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Configuration verification Run the show command to verify the configuration. ZXR10(config)#show ip interface gre_tunnel1 gre_tunnel1 AdminStatus is up, PhyStatus is up, line protocol is down Ip unnumbered loopback1
(use ip address:1.2.3.81)
IP MTU is 1476 bytes
ZXR10(config)#show ip interface te_tunnel1 te_tunnel1 AdminStatus is up, PhyStatus is up, line protocol is down Ip unnumbered loopback1
(use ip address:1.2.3.81)
IP MTU is 1500 bytes
ZXR10(config)#show ip interface v6_tunnel1 v6_tunnel1 AdminStatus is up, PhyStatus is up, line protocol is down IP MTU is 1460 bytes
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Figures Figure 2-1 Five Classes of IP Addresses .................................................................. 2-1 Figure 2-2
Main IP Address Configuration Example ................................................. 2-5
Figure 2-3 Auxiliary IP Address Configuration Example ............................................ 2-6 Figure 2-4 MTU Configuration Example Topology ..................................................... 2-9 Figure 2-5 Interface MTU Configuration Example.................................................... 2-13 Figure 3-1 Ethernet Interface Configuration Example ............................................... 3-4 Figure 4-1
Structure of L2 Packet With VLAN ID ...................................................... 4-1
Figure 4-2 802.1Q VLAN Packet Header Structure ................................................... 4-2 Figure 4-3 VLAN Sub-Interface Configuration Example............................................. 4-3 Figure 4-4 VLAN Range Sub-Interface Configuration Example ................................. 4-6 Figure 4-5 VLAN TPID Configuration Example.......................................................... 4-9 Figure 5-1 QinQ Sub-Interface Configuration Example.............................................. 5-2 Figure 5-2 QinQ Range Sub-Interface Configuration Example .................................. 5-5 Figure 6-1 VLAN Configuration on Device without SuperVLAN ................................. 6-1 Figure 6-2
Configuration on Device with SuperVLAN ............................................... 6-2
Figure 6-3 Integrated SuperVLAN Configuration Example ........................................ 6-4 Figure 6-4 VLAN-Bound-to-IP-Address Configuration Example................................. 6-6 Figure 6-5 IP-MAC Address Binding Example........................................................... 6-7 Figure 7-1 SmartGroup Link Aggregation.................................................................. 7-2 Figure 7-2 802.3ad Mode Configuration .................................................................... 7-7 Figure 7-3 On Mode Configuration .......................................................................... 7-10 Figure 8-1 POS Interface Configuration Example...................................................... 8-4 Figure 8-2 POS Interface Delay Down/Up Configuration Example ............................ 8-5 Figure 9-1 Process of Multiplexing E1 Channels to Form STM-1............................... 9-2 Figure 9-2 Process of Multiplexing T1 Channels to Form STM-1............................... 9-2 Figure 9-3 Network Diagram for a CPOS Application ................................................ 9-3 Figure 9-4 CPOS Configuration Example.................................................................. 9-9 Figure 10-1 CE1 Configuration Example ................................................................. 10-4 Figure 11-1 PPP Configuration Example ................................................................. 11-5 Figure 12-1 Hierarchy of HDLC in Protocol Stack.................................................... 12-1 Figure 12-2 POSgroup Link Aggregation................................................................. 12-2 Figure 12-3 Basic HDLC Configuration Example..................................................... 12-5 I SJ-20140731105308-008|2014-10-20 (R1.0)
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Figure 12-4 POSgroup Configuration Example ....................................................... 12-6 Figure 13-1 ICBG Configuration Example ............................................................... 13-3 Figure 14-1 Relation Between Multilink and PPP .................................................... 14-2 Figure 14-2 Multilink Configuration Example ........................................................... 14-4 Figure 16-1 Port Damping Function Configuration Example Topology ..................... 16-3 Figure 17-1 Loopback Interface Configuration Example ......................................... 17-3 Figure 17-2 Loopback Interface Acting as Router-ID............................................... 17-4 Figure 17-3 NULL Interface Configuration Example ................................................ 17-5
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Glossary ATM - Asynchronous Transfer Mode BCP - Bridging Control Protocol BER - Bit Error Rate BGP - Border Gateway Protocol BOOTP - Bootstrap Protocol CFI - Canonical Format Indicator CHAP - Challenge Handshake Authentication Protocol CIP - Customer Instance Port CSMA/CD - Carrier Sense Multiple Access/Collision Detect DCE - Data Circuit-terminating Equipment DHCP - Dynamic Host Configuration Protocol DTE - Data Terminal Equipment EPLD - Erasable Programmable Logic Device FDDI - Fiber Distributed Data Interface FE - Fast Ethernet FPGA - Field Programmable Gate Array GE - Gigabit Ethernet III SJ-20140731105308-008|2014-10-20 (R1.0)
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GRE - General Routing Encapsulation HDLC - High-level Data Link Control IBGP - Interior Border Gateway Protocol IP - Internet Protocol IPCP - IP Control Protocol IS-IS - Intermediate System-to-Intermediate System ISO - International Organization for Standardization LACP - Link Aggregation Control Protocol LAN - Local Area Network LCP - Link Control Protocol MAC - Message Authentication Code MD5 - Message Digest 5 Algorithm MEN - Metro Ethernet Network MPLS - Multiprotocol Label Switching MPLSCP - MPLS Control Protocol MTU - Maximum Transmission Unit NCP - Network Control Protocol OSI - Open System Interconnection PAP - Password Authentication Protocol IV SJ-20140731105308-008|2014-10-20 (R1.0)
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Glossary
PHY - Physical layer POS - Packet Over SDH POS - Packet Over SONET/SDH PPP - Point to Point Protocol RARP - Reverse Address Resolution Protocol RSVP - Resource Reservation Protocol SPE - Signal Portal Element TCI - Tag Control Information TPID - Tag Protocol Identifier VID - VLAN Identifier VLAN - Virtual Local Area Network VPN - Virtual Private Network WAN - Wide Area Network WDM - Wavelength Division Multiplexing
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