[c-nsp] VSS 1440 issues

[Kevin Loch]

C and C Dominte wrote:

> Thank you for your advice, however, increasing the timers
> did not work.
> 
>  
> 
> I powered down the active linecards from switch 2
> yesterday to see if it stopped the unicast flood, which it did. 
> 
>  
> 
> Today I increased the mac address syncronisation activity
> time to 640 and the mac address aging time to 1920 (3x640) as below:

While I have not run 6500's in VSS mode I have run into similar unicast
flooding with certain non-VSS configurations of 6500's.  The most
reliable fix I have found is "arp timeout 120" in the affected vlan
interfaces.

- Kevin