[c-nsp] C6500 Switching problem

[R S]

I saw it's not formatted, try again.

On cisco 6500 we're experience the following problem.

A particular mac-address is seen on port Te1/1:

xxx#sh mac-address-table dynamic address xxxx.yyyy.yyyy

Legend: * - primary entry
        age - seconds since last seen
        n/a - not available

  vlan   mac address     type    learn     age              ports

------+----------------+--------+-----+----------+--------------------------
Module 1:
*    3  xxxx.yyyy.yyyy   dynamic  Yes          0   Te1/1

It’s not seen on the vlan 3:

xxx#sh mac-address-table dynamic vlan 3

Legend: * - primary entry
        age - seconds since last seen
        n/a - not available

  vlan   mac address     type    learn     age              ports

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

If I do a clear mac-address-table…

xxx#clear mac-address-table dynamic vlan 3

It’s again seen on the vlan:

xxx#sh mac-address-table dynamic vlan 3

Legend: * - primary entry
        age - seconds since last seen
        n/a - not available

  vlan   mac address     type    learn     age              ports

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

Module 1:
*    3  xxxx.yyyy.yyyy   dynamic  Yes          0   Te1/1


But after some time it still disapper…


xxx#sh mac-address-table dynamic vlan 3

Legend: * - primary entry
        age - seconds since last seen
        n/a - not available

  vlan   mac address     type    learn     age              ports

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


Any idea ?

Tks