09-24-2013 11:55 PM - edited 03-07-2019 03:39 PM
We are currently running HSRP in our core with 2 devices within 1 HSRP Group which is fine.
We have an adjacent building where all hosts use this HSRP instance as their Gateway which works fine.
However we have an issue in that SRST is failing in remote building as when connectivity is lost to core(CUCM) the default gateway for all the hosts is unreachable.
The Core switch in the remote building(lets call this SW3) has SVIs configured but device is not part of HSRP group.
I can add this device to HSRP group but have concerns:-
Thanks
09-25-2013 01:49 AM
Can you post a diagram of your topology?
09-25-2013 03:23 AM
09-25-2013 04:13 AM
what I suggest on this is : if you dont want sw3 to be the active router for the whole campus, you change the priority of the switch to a value that it will be active only as the last choice.
Adding a device to HSRP should not cause a downtime, as the active gateway will be hosted on a different device. You can try the same setup in GNS as well to make a best practice.
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