[c-nsp] Couple performance questions regarding CAT 6500 (SUP 720-3BXL)

[Nick Hilliard]

On 13/11/2009 15:46, Drew Weaver wrote:
> and it does seem to correspond to the BGP scanner running the CPU
> utilization up to 80%, is that the 'norm' for this time of high cpu
> utilization?

in my experience yes.

> I was under the impression that the X6724 was not over-subscribed but
> from the looks of those queues it seems to be slightly inadequate.

24 GE ports, single 20G fabric connection.  Go figure.

The output drops may not be caused by over-subscription, btw.  It may be 
just that the port is receiving too much traffic.  If your 5 minute graphs 
look well under 950 megs, take a look at 30 second graphs and see what they 
are saying.  Microbursts can cause all sorts of interest effects which you 
simply won't see on a 5 minute average.

Nick