Users Guide

Layer 2 Switching Commands 640
processes control traffic and sends LACP and BPDU packets with a unique
source MAC address (the system MAC of the local switch). The MLAG
connected devices become aware that they are connected to two devices
and, if LACP is enabled, block the links to one of the peers as a new actor
ID is received. STP re-convergence may also occur in this scenario.
Example
console(config)#vpc domain 1
console(config-vpc 1)#peer-keepalive enable
console(config-vpc 1)#peer-keepalive destination 192.168.0.2 source
192.168.0.1
console(config-vpc 1)#peer detection enable
console(config-vpc 1)#exit
peer-keepalive timeout
Use this command to configure the peer keepalive timeout value, in seconds.
Use the no form of this command to return the timeout value to the default.
Syntax
peer-keepalive timeout value
no peer-keepalive timeout
• value—The peer keepalive timeout value in seconds. The range is 2 to 15
seconds.
Default Configuration
By default, the keepalive timeout value is 5 seconds.
Command Modes
VPC Domain
User Guidelines
This command configures the peer keepalive timeout value (in seconds). If an
MLAG switch does not receive keepalive messages from the peer for this
timeout value, it takes the decision to transition its role (if required).
The keepalive state machine is not restarted if keepalive priority is modified
post election.