VPC - [Part 8] - CONFIGURATION

Now we are going to configure VPC as per above topology

Configuration - 

• Step - 1 Initially enable necessary features like VPC and LACP on both switches.

Nexus-A(config)# feature vpc
Nexus-B(config)# feature lacp

Nexus-B(config)# feature vpc
Nexus-B(config)# feature lacp

• Step - 2 For Keep Alive Link, we will use management interface, we can also use other ports.

Nexus-A(config)# interface mgmt 0
Nexus-A(config-if)# ip address 20.1.1.1/30
Nexus-A(config-if)# no shutdown

Nexus-B(config)# interface mgmt 0
Nexus-B(config-if)# ip address 20.1.1.2/30
Nexus-B(config-if)# no shutdown

now verify the connectivity,  ping Nexus-B from Nexus-A.

• Step - 3 Now we will configure VPC domain, we will create vPC domain 1. We can choose domain id from 1 to 1000. And, also we will put priorities for both switches. Switch with lower priority value will be selected as primary VPC peer devices and switch with higher priority value will be selected as secondary VPC peer devices.

Nexus-A(config)# vpc domain 1
Nexus-A(config-vpc-domain)# role priority 10
Nexus-A(config-vpc-domain)# peer-keepalive destination 20.1.1.2 source 20.1.1.1 vrf management

Nexus-B(config)# vpc domain 1
Nexus-B(config-vpc-domain)# role priority 20
Nexus-B(config-vpc-domain)# peer-keepalive destination 20.1.1.1 source 20.1.1.2 vrf management
Nexus-B(config-vpc-domain)#

• Step - 4 Now we will configure peer link 

Nexus-A(config)# interface ethernet 1/1-2
Nexus-A(config-if-range)# channel-group 10 mode active
Nexus-A(config-if-range)# no shutdown

Nexus-A(config)# interface port-channel 10
Nexus-A(config-if)# no shutdown
Nexus-A(config-if)# switchport
Nexus-A(config-if)# switchport mode trunk
Nexus-A(config-if)# vpc peer-link

Nexus-B(config)# interface ethernet 1/1-2
Nexus-B(config-if-range)# channel-group 10 mode active
Nexus-B(config-if-range)# no shutdown

Nexus-B(config)# interface port-channel 10
Nexus-B(config-if)# no shut
Nexus-B(config-if)# switchport
Nexus-B(config-if)# switchport mode trunk
Nexus-B(config-if)# vpc peer-link

now verify

Step - 5 Ports where end device is connected known as member port. We will configure port-channel for the end device.

Nexus-A(config)# interface eth 1/3
Nexus-A(config-if)# channel-group 20 mode active

Nexus-A(config-if)# interface port-channel 20
Nexus-A(config-if)# switchport
Nexus-A(config-if)# switchport mode access
Nexus-A(config-if)# switchport access vlan 20
Nexus-A(config-if)# vpc 20

Nexus-B(config)# interface eth 1/3
Nexus-B(config-if)# channel-group 20 mode active

Nexus-B(config-if)# interface port-channel 20
Nexus-B(config-if)# switchport
Nexus-B(config-if)# switchport mode access
Nexus-B(config-if)# switchport access vlan 20
Nexus-B(config-if)# vpc 20

Now verify VPC member.

Member port Po20 is added. Showing down, because the end device port-channel is not configured. 

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Anubhav Upadhyay

Hello and welcome to networktopic Blog. My name is Anubhav. I am a Senior Network Egineer. I have created this blog specially to serve interview questions and answer on Network Routing and Switching, I will try my best to serve correct and updated networking knowledge for you as per my corporate experience.

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