Configuring VPC Virtual Port Channel With Cisco Nexus: Lab Topology [PDF]

Citation preview

Download PNETLab Platform PNETLAB Store PNETLab.com



Configuring vPC Virtual Port Channel with Cisco Nexus Lab Topology: Please use the following topology to complete this lab exercise:



Objectives vPC stands for Virtual Port Channel, which is a virtualization technology that allows physical links on two different Cisco Nexus 3000 5000 7000 or 9000 devices that can be consolidated into a logical port to connect to Endpoint devices. Endpoint can be a switch, server, router or any other device that supports LACP (EtherChannel) link technology. vPC uses vPC number to determine which ports belong to the same channel. Ports with the same number of VPCs on 2 devices will form 1 group. That port channel can be configured as port trunk or access vlan depending on the model. In this LAB, configure port channel 1000 mode trunk to connect 2 Switch Distribution and port channel 3 mode access to connect down to the switch access below.



1



Download PNETLab Platform PNETLAB Store PNETLab.com



Task  



On 2 Switch NXOS1 and NXOS2 use 2 physical ports E1/1 and E1/2 form a group vPC 1000 and perform this vPC line trunk. Using the physical port E1/3 and E1/4 of 2 Switch NXOS1 and NXOS2 form group 3 participating in vPC number 980 and configure access mode vlan 1900 for this port channel.



Configuration Perform the initial configuration for the Swich Nexus After turning on the Nexus Switch, the switch starts long, about 4 -5 minutes, after starting, we see the log as below, select "yes". Abort Power On Auto Provisioning [yes - continue with normal setup, skip - bypass password and basic configuration, no - continue with Power On Auto Provisioning] (yes/skip/no)[no]: The switch will continue to run until the log appears as below, select "no". This dialog requires us to use a highly secure password, if we select "yes" will have to set a complex password, if "no" then just set the password simply. If you want to ignore not setting a password, select any and then press Ctrl + D Do you want to enforce secure password standard (yes/no) [y]: Then log on to the switch with the newly set password, if the password is not set, the password line is blank. Task 1: Use interface management 0 to send keepalive packets to set up and maintain vPC. NXs1(config)#interface mgmt 0 NXs1(config-if)# vrf member management NXs1(config-if)# ip address 172.16.12.1/24 NXs1(config-if)#exit NXs2(config)#interface mgmt 0 NXs2(config-if)# vrf member management NXs2(config-if)# ip address 172.16.12.2/24 NXs2(config-if)#exit Turn on VPC and Etherchannel LACP features in NXs1 and NXs2. NXs1(config)#feature vpc NXs1(config)#feature lacp NXs2(config)#feature vpc NXs2(config)#feature lacp Perform Etherchannel 1000 line configuration in NXs1 and NXs2. 2



Download PNETLab Platform PNETLAB Store PNETLab.com NXs1(config)#interface e1/1-2 NXs1(config-if)#switchport NXs1(config-if)#switch mode trunk NXs1(config-if)#channel-group 1000 mode active NXs1(config-if)#no shut NXs1(config-if)#exit NXs2(config)#interface e1/1-2 NXs2(config-if)#switchport NXs2(config-if)#switch mode trunk NXs2(config-if)#channel-group 1000 mode active NXs2(config-if)#no shut NXs2(config-if)#exit Performing the vPC domain creation configuration, on NXs1 pointing peer-keepalive destination to ip management of NXs2 and on NXs2 pointing to NXs1's ip management. NXs1(config)#vpc domain 1000 NXs1(config-vpc-domain)# peer-switch NXs1(config-vpc-domain)# role priority 250 NXs1(config-vpc-domain)#peer-keepalive destination 172.16.12.2 source 172.16.12.1 vrf management NXs1(config-vpc-domain)# peer-gateway NXs1(config-vpc-domain)# layer3 peer-router NXs1(config-vpc-domain)# ip arp synch NXs1(config-vpc-domain)#exit NXs2(config)#vpc domain 1000 NXs2(config-vpc-domain)# peer-switch NXs2(config-vpc-domain)# role priority 251 NXs2(config-vpc-domain)#peer-keepalive destination 172.16.12.1 source 172.16.12.2 vrf management NXs2(config-vpc-domain)# peer-gateway NXs2(config-vpc-domain)# layer3 peer-router NXs2(config-vpc-domain)# ip arp synch NXs2(config-vpc-domain)#exit Perform a configuration that puts the po1000 interface in the vPC domain just configured above NXs1(config)#interface po1000 NXs1(config-if)#switchport NXs1(config-if)#switch mode trunk NXs1(config-if)#spanning-tree port type network NXs1(config-if)#vpc peer-link NXs1(config-if)#exit NXs2(config)#interface po1000 3



Download PNETLab Platform PNETLAB Store PNETLab.com NXs2(config-if)#switchport NXs2(config-if)#switch mode trunk NXs2(config-if)#spanning-tree port type network NXs2(config-if)#vpc peer-link NXs2(config-if)#exit Perform a vPC re-examination with the "show vpc" command NXs1# show vpc Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id Peer status vPC keep-alive status Configuration consistency status Per-vlan consistency status Type-2 consistency status vPC role Number of vPCs configured Peer Gateway Dual-active excluded VLANs Graceful Consistency Check Auto-recovery status Delay-restore status Delay-restore SVI status Operational Layer3 Peer-router Virtual-peerlink mode



: : : : : : : : : : : : : : : :



1000 peer adjacency formed ok peer is alive success success success primary 1 Enabled Enabled Disabled Timer is off.(timeout = 30s) Timer is off.(timeout = 10s) Enabled Disabled



vPC Peer-link status ---------------------------------------------------------id Port Status Active vlans ---------- -------------------------------------1 Po1000 up 1 NXs2# show vpc Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id Peer status vPC keep-alive status Configuration consistency status Per-vlan consistency status Type-2 consistency status vPC role Number of vPCs configured Peer Gateway Dual-active excluded VLANs Graceful Consistency Check



: : : : : : : : : : : 4



1000 peer adjacency formed ok peer is alive success success success secondary 1 Enabled Enabled



Download PNETLab Platform PNETLAB Store PNETLab.com Auto-recovery status Delay-restore status Delay-restore SVI status Operational Layer3 Peer-router Virtual-peerlink mode



: : : : :



Disabled Timer is off.(timeout = 30s) Timer is off.(timeout = 10s) Enabled Disabled



vPC Peer-link status ---------------------------------------------------------id Port Status Active vlans ---------- -------------------------------------1 Po1000 up 1 Perform a trunk road re-examination NXs1# show int trunk ---------------------------------------------------------Port Native Status Port Vlan Channel ---------------------------------------------------------Eth1/1 1 trnk-bndl Po1000 Eth1/2 1 trnk-bndl Po1000 Po1000 1 trunking ----------------------------------------------------------Port Vlans Allowed on Trunk ---------------------------------------------------------Eth1/1 1-4094 Eth1/2 1-4094 Po1000 1-4094 Task 2: Create VLAN 1900, perform Etherchannel 3 line configuration and access to vlan 1900 NXs1(config)#vlan 1900 NXs1(config-vlan)#exit NXs1(config)#interface e1/3 NXs1(config-if)#switchport NXs1(config-if)#switchport access vlan 1900 NXs1(config-if)#channel-group 3 mode active NXs1(config-if)#no shutdown NXs1(config-if)#exit NXs2(config)#vlan 1900 NXs2(config-vlan)#exit NXs2(config)#interface e1/4 NXs2(config-if)#switchport NXs2(config-if)#switchport access vlan 1900 NXs2(config-if)#channel-group 3 mode active NXs2(config-if)#no shutdown 5



Download PNETLab Platform PNETLAB Store PNETLab.com NXs2(config-if)#exit Configuration puts po3 interface involved in vPC number 980 NXs1(config-if)#interface po3 NXs1(config-if)#switchport NXs1(config-if)#vpc 980 NXs1(config-if)#no shutdown NXs2(config-if)#interface po3 NXs2(config-if)#switchport NXs2(config-if)#vpc 980 NXs2(config-if)#no shutdown At the switch access below make vlan 1900 and configure Etherchannel line 3 NXs3(config)#vlan 1900 NXs3(config-vlan)#exit NXs3(config)#interface NXs3(config-if-range)# NXs3(config-if-range)# NXs3(config-if-range)# NXs3(config-if-range)# NXs3(config-if-range)#



e1/3-4 switchport switchport access vlan 1900 channel-group 3 mode active no shutdown exit



Re-check vPC NXs1# show vpc Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id Peer status vPC keep-alive status Configuration consistency status Per-vlan consistency status Type-2 consistency status vPC role Number of vPCs configured Peer Gateway Dual-active excluded VLANs Graceful Consistency Check Auto-recovery status Delay-restore status Delay-restore SVI status Operational Layer3 Peer-router Virtual-peerlink mode



: : : : : : : : : : : : : : : :



6



1000 peer adjacency formed ok peer is alive success success success primary 1 Enabled Enabled Disabled Timer is off.(timeout = 30s) Timer is off.(timeout = 10s) Enabled Disabled



Download PNETLab Platform PNETLAB Store PNETLab.com vPC Peer-link status ---------------------------------------------------------id Port Status Active vlans ---------- -------------------------------------1 Po1000 up 1,1900 vPC status ---------------------------------------------------------Id Port Status Consistency Reason Active vlans ------------- ------ ----------- -----980 Po3 up success success 1900 NXs2# show vpc Legend: (*) - local vPC is down, forwarding via vPC peer-link vPC domain id Peer status vPC keep-alive status Configuration consistency status Per-vlan consistency status Type-2 consistency status vPC role Number of vPCs configured Peer Gateway Dual-active excluded VLANs Graceful Consistency Check Auto-recovery status Delay-restore status Delay-restore SVI status Operational Layer3 Peer-router Virtual-peerlink mode



: : : : : : : : : : : : : : : :



1000 peer adjacency formed ok peer is alive success success success secondary 1 Enabled Enabled Disabled Timer is off.(timeout = 30s) Timer is off.(timeout = 10s) Enabled Disabled



vPC Peer-link status ---------------------------------------------------------id Port Status Active vlans ---------- -------------------------------------1 Po1000 up 1,1900 vPC status ---------------------------------------------------------Id Port Status Consistency Reason Active vlans ------------- ------ ----------- -----980 Po3 up success success 1900



7



Download PNETLab Platform PNETLAB Store PNETLab.com



8