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Why active and standby supervisor shows diff. mac table?

pbassoli
Level 1
Level 1

HI,

on a cat 6500 why active and standby supervisor it shows  differents mac table?

The Po1 gorup ports belonging to active and standby sup.

BrCore1#sh mac address-table address 001D.72E9.882C

Legend: * - primary entry

        age - seconds since last seen

        n/a - not available

  vlan   mac address     type    learn     age              ports

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

Active Supervisor:

*  100  001D.72E9.882C   dynamic  Yes         75   Po1

*  101  001D.72E9.882C   dynamic  Yes         40   Po1

Standby Supervisor:

*  100  001D.72E9.882C   dynamic  Yes         25   Po1

on standby sup I do not see mac 001D.72E9.882C for vlan 101 is it correct?

Active and standby must have the same mac table? or this bheavior depend on how the port-channel distribute the packets over the physical link?

Tks

2 Replies 2

ALIAOF_
Level 6
Level 6

That should mean that VLAN101 is actively passing traffic via Active switch.  What is that device with that MAC?   

that mac belong to a switch that have several VLAN configured.

Po1 connecte 6500_1 to 6500_2

Po1  groups 10G ports from active and standby supervisor.

the switch (mac 001D.72E9.882C) is connected only to 6500_2

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