Can't ping an HSRP address from a 3550-12G [7:61264]

[Symon Thurlow]

Hi guys,

I have a 3550-12G that is connected to 5 switches.

There are also a 3640 and a 2600, that share an HSRP address, and both
of these routers are connected to one of the switches hanging off the
3550-12G..

>From the 3550-12G I can't ping the HSRP address, but can ping the
physical address of each participating interface.

I though it was quite odd, as the other 5 switches connected to the
3550-12G can ping the HSRP address (2 x 3548's, 1 x 3524 and 2 x
3550-48's).

I haven't done any in depth analysis yet (packet captures etc) but
wondered if anyone else had come across it.

Symon




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RE: Can't ping an HSRP address from a 3550-12G [7:61264]

[Ross McCormick]

Symon

Things to check:
-  are there any access lists or firewalling software preventing multicast
traffic between the routers and "disconnected" switch?
-  are any of the switches "stacked"?  If so, ensure software versions are
compatable.
-  are there any duplex issues between switches.  In particular, check that
gig ports are set to auto-speed, auto-duplex at both ends of the link.

Hope this helps.






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