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Beginner

Emergency Responder not finding all switchports on Catalyst 9300 stack

We are running Cisco Emergency Responder version 11.5.4.50000-6 and trying to discover phones connected to a Catalyst 9300 stack (C9300-48P) on version 16.08.01a.  There are three member switches connected via StackWise and the stack is fully operational.   CER detects the switchports and phones connected to the switch 1 and 2, but it doesn't even detect the ports of switch 3.  I re-ran "Locate switch-port", but no success.  It's as if this stack only had two members.  I check the logs on CER and there's no indication of discovery errors.  Running CDP command on switch shows ports and phones of all members of the stack.

 

I should mention that switch 3 was added later to the stack, after switches 1 and 2 were stacked and fully operational for a while beforehand.

 

What could be causing CER to miss switch 3 of this stack?  Is there a potential compatibility issue?  Or, do one or more CER services need to be restarted?

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VIP Advisor

Re: Emergency Responder not finding all switchports on Catalyst 9300 stack

Did you see this?

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvq17310

It's not much help, but at least it let's you know that others are having the same problem. I'd recommend opening a TAC case and asking about this defect, or if you have a good relationship with your Cisco SE, talk to them.

Anthony Holloway

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