Configuring Virtual Port Channels

Manually Configuring a vPC Peer Switch Role

This example shows how to configure a vPC peer link:

switch# configure terminal switch(config)# vpc domain 5 switch(config-if)# system-priority 4000

Manually Configuring a vPC Peer Switch Role

By default, the Cisco NX-OS software elects a primary and secondary vPC peer switch after you configure the vPC domain and both sides of the vPC peer link. However, you may want to elect a specific vPC peer switch as the primary switch for the vPC. Then, you would manually configure the role value for the vPC peer switch that you want as the primary switch to be lower than the other vPC peer switch.

vPC does not support role preemption. If the primary vPC peer switch fails, the secondary vPC peer switch takes over to become operationally the vPC primary switch. However, the original operational roles are not restored when the formerly primary vPC comes up again.

Before You Begin

Ensure that you have enabled the vPC feature.

You must configure both switches on either side of the vPC peer link with the following procedure.

Procedure

 

Command or Action

Purpose

Step 1

switch# configure terminal

Enters configuration mode.

Step 2

switch(config)# vpc domain

Selects an existing vPC domain on the switch, or creates

 

domain-id

a new vPC domain, and enters the vpc-domain

 

 

configuration mode. There is no default domain-id; the

 

 

range is from 1 to 1000.

Step 3

switch(config-vpc-domain)# role

Enters the role priority that you want for the vPC system

 

priority priority

priority. The range of values is from 1 to 65535. The

 

 

default value is 32667.

Step 4

switch# show vpc brief

(Optional)

 

 

Displays information about each vPC, including

 

 

information about the vPC peer link.

Step 5

switch# copy running-config

(Optional)

 

startup-config

Copies the running configuration to the startup

 

 

configuration.

This example shows how to configure a vPC peer link:

switch# configure terminal switch(config)# vpc domain 5 switch(config-if)# role priority 4000

 

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Cisco Systems N5KC5596TFA manual Manually Configuring a vPC Peer Switch Role, Priority priority

N5KC5596TFA specifications

The Cisco Systems N5KC5596TFA is a high-performance data center switch designed specifically for modern architectures requiring low-latency, high-bandwidth connectivity. As part of the Nexus 5000 series, the N5KC5596TFA addresses the needs of virtualized environments, cloud computing, and highly dynamic workloads, making it an essential choice for enterprises and service providers.

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The switch supports a range of advanced technologies such as Virtual Extensible LAN (VXLAN) for improving scalability and multi-tenancy in data center networks. VXLAN encapsulates Layer 2 Ethernet frames within Layer 4 UDP packets, allowing for a larger address space and effective overlay networking, which is crucial for cloud deployments.

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Overall, the Cisco Systems N5KC5596TFA is engineered for organizations looking to build robust, highly efficient, and secure data center environments. Its combination of high density, versatile connectivity options, and advanced networking technologies makes it a powerful solution for meeting the demands of today’s enterprise workloads.