[c-nsp] c6k msfc - hsrp flapping

[Michael K. Smith]

Hello Lee


On 5/17/06 4:01 AM, "lee.e.rian at census.gov" <lee.e.rian at census.gov> wrote:

> 
> We're having a problem on only one cat6000 MSFC where all the standby HSRP
> interfaces go active and routing adjacencies drop.  It's like the packets
> are being dropped somewhere inside the switch before they get to the MSFC.
> 
> The supervisor isn't complaining about any problems like links flapping or
> spanning tree changes and none of the regular error counters on the
> supervisor or MSFC look all that bad - but I did see some of the show ibc
> counters incrementing.
> 
<snip>

Here is an excellent thread on the ins and outs of HSRP timers.  I would
take a look at your timers, particularly in relationship to your Spanning
Tree timers.  

http://web.nether.net/lists/cisco-nsp/4316.html

Regards,

Mike