6509E with Sup720 - Show mac address

[Difan Zhao]

I have seen very strange behavior. The following two commands show different outputs...

core2#sho mac address-table dynamic | in cc04

     7  0009.0fbb.cc04   dynamic  Yes        150   Po10

core2#sho mac address-table address 0009.0fbb.cc04

Legend: * - primary entry

        age - seconds since last seen

        n/a - not available

  vlan   mac address     type    learn     age              ports

------+----------------+--------+-----+----------+--------------------------

No entries present.

Po10 is etherchannel to core1. The MAC address is on the core2 and should never be learned on core1. Core1 doesn't learn this MAC address at all.

The commands are run at the same time. I repeated many times and it is the same... Any idea why?

Thanks!

Difan

[Jon Marshall]

I actually already provided it in my previous post but here it is again..

I meant from the access switch end not core2 end.

It isn't working as i expect so it may be a bug.

What IOS are you running ?

Jon

[Difan Zhao]

Here is from the access switch sw03

sw03#sh cdp nei gi2/0/28

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge

                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,

                  D - Remote, C - CVTA, M - Two-port Mac Relay

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID

core2

                 Gig 2/0/28        155             R S I  WS-C6509- Gig 1/1

!

sw03#sh vlan id 7

VLAN id 7 not found in current VLAN database

!

sw03#sh int g2/0/28 trunk

Port        Mode             Encapsulation  Status        Native vlan

Gi2/0/28    on               802.1q         trunking      1

Port        Vlans allowed on trunk

Gi2/0/28    1-4094

Port        Vlans allowed and active in management domain

Gi2/0/28    1,64,72,156,214-216,300,600

Port        Vlans in spanning tree forwarding state and not pruned

Gi2/0/28    1,300

!

Thanks,