12-01-2005 09:59 PM
Hi
The customer got one pair of CSM installed on two switches.
Some servers connected to primary switch (primary CSM), and the rest of servers are connected to the 2nd switch/CSM.
On the 2nd switch, sniffer shows a lot of unicast traffics are flooding to all the ports under the same VLAN (and all the trunking ports).
Is this expected behavior?
Thanks
12-02-2005 12:29 AM
are you in bridge mode ?
Do you have HSRP configured ?
There is a well-known bug regarding flooding
CSCei94412: HSRP packets not bridged by CSM causing flooding
This was fixed in 4.2.3
If that does not apply to you, we will need more information - like config, type of packets being flooded [anything in common to those packets ?]
Regards,
Gilles.
Thanks for rating this answer.
12-02-2005 01:49 AM
thanks
However we are not using bridge mode.
If this is not expected behavior, I think i have to go onsite to find out more info and do some troubleshooting....
Regards
12-08-2005 06:57 AM
Found the problem.
When the two CSM doing replication, they sent out a lot of unicast traffics flooding the replicacation VLAN.
This does not affect user VLANs.
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