ok, i believe i found out that it's due to the mac-sync feature of the 6708 module
which uses an interval of 160".
6500#sh mac address-table synchronize statistics
MAC Entry Out-of-band Synchronization Feature Statistics:
---------------------------------------------------------
Module [4]
-----------
Module Status:
Statistics collected from module : 4
Number of L2 asics in this module : 1
Global Status:
Status of feature enabled on the switch : on
Default activity time : 160
Configured current activity time : 160
Nevertheless, it would be good to get a warning message on this case.
--
Tassos
Tassos Chatzithomaoglou wrote on 18/08/2010 16:43:
I'm using SXI4a
6500#conf t
Enter configuration commands, one per line. End with CNTL/Z.
6500(config)#mac-address-table aging-time 300
6500(config)#^Z
6500#sh mac address-table aging-time
Vlan Aging Time
---- ----------
Global 480
no vlan age other than global age configured
6500#conf t
Enter configuration commands, one per line. End with CNTL/Z.
6500(config)#mac-address-table aging-time 479
6500(config)#^Z
6500#sh mac address-table aging-time
Vlan Aging Time
---- ----------
Global 480
no vlan age other than global age configured
6500#conf t
Enter configuration commands, one per line. End with CNTL/Z.
6500(config)#mac-address-table aging-time 481
6500(config)#^Z
6500#sh mac address-table aging-time
Vlan Aging Time
---- ----------
Global 481
no vlan age other than global age configured
In SXI3 it works fine
6500#sh mac address-table aging-time
Vlan Aging Time
---- ----------
Global 300
no vlan age other than global age configured
--
Tassos
--
*********************************
Anastasios Chatzithomaoglou
Senior Engineer
Core Network/Engineering Division
Forthnet S.A.
<[email protected]>
*********************************
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