[c-nsp] WS-C3750-48PS-E stackwise flap

[Dale W. Carder]

On Sep 19, 2007, at 9:45 AM, William wrote:
> We have a pair of WS-C3750-48PS-E's in a standard stackwise  
> configuration.
>
> Every so often on a daily basis we get the following msg in syslog:
>
> %STACKMGR-6-STACK_LINK_CHANGE: Stack Port 1 Switch 2 has changed to  
> state DOWN
> %STACKMGR-6-STACK_LINK_CHANGE: Stack Port 1 Switch 2 has changed to  
> state UP
>
> Has anyone spotted this before? This is a remote site so I would like
> to leave the visual check/reseat of the cables last. More importantly
> no users are reporting an issue when these flaps happen.

We have a lot of (few thousand) 3750s.  I think we reseat the
stack cables on at least one stack a month, but in most cases
we have found the stack ports just flaked out.

I would call the TAC after you confirm the cabling is fine.

Dale