[c-nsp] Unicast storms

[Stephen Wilcox]

Hi Vincent,
 I've seen this too, its very annoying.

The reason is it is sampling the rate over a 1 or 2 second interval as opposed to the interface rate which by default is 5 minutes altho you can go to as low as 30s (load-interval 30).

Cisco: it would be very nice if we could tune that period, 2s is way too short!

I see it is a problem mainly on Windows networks, MS loves to send out unicast and broadcast junk and the machines on a network have a tendency to synchronize their bursts of traffic so you end up getting short bursts of traffic occasionally.

Steve

On Mon, Jul 02, 2007 at 02:54:57PM +0200, Vincent De Keyzer wrote:
> Hello,
> 
>  
> 
> I have configured _unicast_ storm-control on our LAN recently, and it keeps
> kicking in all of the time (something like 50 times per hour).
> 
>  
> 
> The configured treshhold is quite high (10% - that's 100 Mbps on GigE
> ports!...).
> 
>  
> 
> I believe there is something wrong - where do I start troubleshooting this?
> 
>  
> 
> Vincent
> 
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/