HSRP Standby routers limitation

Unanswered Question
Dec 7th, 2008

Hi.

What is the MAXIMUM number of STANDBY routers in ONE HSRP group?

Danny.

I have this problem too.
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Giuseppe Larosa Sun, 12/07/2008 - 04:01

Hello Danny,

in an HSRP group there is one Active router

one Standby router. All other routers are in the Listen State: they listen to HSRP messages that are sent to 224.0.0.2 all routers in subnets.

If one of Active or Standby fails the other routers move from Listen -> Speak and a new standby is elected.

There is no limit on the number of routers that can take part in a HSRP group a practical limit can be four.

If you have four routers and multiple clients I would suggest you to try to use GLBP to get load-balancing.

Hope to help

Giuseppe

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