Unanswered Question
Mar 16th, 2009

Hi, I hope Learn command needs to be run on Backup & advertise command on Master.

My question is, if Learn is for 5 sec and Advertise is 3 seconds as configured, what does its mean ?

vrrp timers learn

vrrp timers advertise

I have this problem too.
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Leo Laohoo Mon, 03/16/2009 - 21:28

"vrrp timers advertise"

The advertisements being sent by the master virtual router communicate the state and priority of the current master virtual router.

The vrrp timers advertise command configures the time between successive advertisement packets and the time before other routers declare the master router to be down. Routers or access servers on which timer values are not configured can learn timer values from the master router. The timers configured on the master router always override any other timer settings. All routers in a VRRP group must use the same timer values. If the same timer values are not set, the routers in the VRRP group will not communicate with each other and any misconfigured router will change its state to master.

Leo Laohoo Mon, 03/16/2009 - 21:29

"vrrp timers learn"

If this command is configured, when the local router is acting as a backup virtual router for the group, it will learn the advertisement interval of the current master virtual router from its master advertisements. The local router will use that value to calculate how long it should wait before deciding that the master virtual router has gone down. This command synchronizes timers with the current master virtual router.


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