Cisco Systems N5KC5596TFA Configuring vPCs, Enabling vPCs, Disabling vPCs, switch# show feature

Configuring Virtual Port Channels

Configuring vPCs

•A Fabric Extender can be a member of a Host Interface vPC topology or a Fabric Extender vPC topology but not both simultaneously.

•You must configure both vPC peer switches; the configuration is not automatically synchronized between the vPC peer devices.

•Check that the necessary configuration parameters are compatible on both sides of the vPC peer link.

•You may experience minimal traffic disruption while configuring vPCs.

•You should configure all the port channels in the vPC using LACP with the interfaces in active mode.

•When the peer-switchcommand is configured and vPC keepalive messages exchanged through an SVI instead of a management interface, additional Spanning Tree Protocol (STP) configuration is required. STP needs to be disabled on the dedicated link that carries the keepalive traffic between the vPC peers. You can disable STP on the dedicated link by configuring STP BPDUfilter on the both ends of the dedicated link. We recommend that the VLAN of the vPC keepalive SVI be allowed on only the interconnecting dedicated link and disallowed on all other links, including the peer link.

Configuring vPCs

Enabling vPCs

You must enable the vPC feature before you can configure and use vPCs.

Procedure

	Command or Action	Purpose
Step 1	switch# configure terminal	Enters configuration mode.
Step 2	switch(config)# feature vpc	Enables vPCs on the switch.
Step 3	switch# show feature	(Optional)
		Displays which features are enabled on the
		switch.
Step 4	switch# copy running-config	(Optional)
	startup-config	Copies the running configuration to the startup
		configuration.

This example shows how to enable the vPC feature:

switch# configure terminal switch(config)# feature vpc

Disabling vPCs

You can disable the vPC feature.

	Cisco Nexus 5000 Series NX-OS Interfaces Configuration Guide, Release 5.2(1)N1(1)
80	78-26881-OL