[c-nsp] high cpu usage due to interrupts

Rodney Dunn rodunn at cisco.com
Tue Feb 13 11:28:02 EST 2007


It will not help unless the ingress and egress interfaces are on
VIPs and ip mroute-cache distributed is on.

sh ip mdfs linecard  or something like that will show you if
mdfs is on.

Rodney

On Tue, Feb 13, 2007 at 05:26:38PM +0100, ulisses wrote:
> On 2007-02-13 17:23:57, ulisses wrote:
> [...]
> > > > Addionally (I haven't mentioned previously) is that when multicast
> > > > comes in (around 10-15 Mbps) the cpu burns at 100%. But first 
> > > > I wanted to make clear that there is no problem with unicast traffic.
> > > 
> > > Oh yeah...that would burn it like a champ. Especially when you don't
> > > have mdfs (multicast distributed fastswitching) capability.
> > 
> > I have it enabled
> > 
> 
> I wanted to mean: I have it enabled on all interfaces that has a VIP, 
> my ATM interface doesn't. I will try to re-route the multicast traffic
> through a VIP enabled FastEthernet in hope this makes a difference.
> 
> best regards
> 
> 	Ulisses
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