11-28-2008 09:29 PM - edited 03-06-2019 02:43 AM
When I do a 'show mac-address-table' entry on Cat 6500 I see duplicate entries for the given mac.
Could you please explain why is a Port-Channel Po1 also returned since the given mac is directly connected to the switch.
SWTICH#sh mac-address-table | i f3c0
* 11 0013.2222.f3c0 dynamic Yes 0 Gi4/3
* 10 0013.2222.f3c0 dynamic Yes 0 Po1
Thanks.
11-29-2008 02:50 AM
Hello New,
if you have service modules in your C6500 this can happen.
For example on a chassis with CSM and FWSM. With the CSM used in bridged mode this is normal.
I suppose the two entries are in different vlans
If you like you can post
sh module
sh ethercha sum
to understand to what device Po1 connects
Hope to help
Giuseppe
11-29-2008 04:15 AM
Po1 connects to the second chassis with exactly the same VLANs, other configurations etc.
The servers are dual-honed. However, the mac stated earlier I believe should only contain one entry.
Could you please elaborate on why this can happen in this scenario. Should this duplication be ignored. Thanks.
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