[c-nsp] mac-address-table aging-time cannot go < 480

Tassos Chatzithomaoglou achatz at forthnet.gr
Wed Aug 18 09:55:10 EDT 2010


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.
      <achatz at forthnet.gr>
*********************************



More information about the cisco-nsp mailing list