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


                                          
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