[c-nsp] Ping priority on Cisco devices

[Ruben Alvarez]

Hi,

Thanks for the reply.  It running at ~18% cpu and is a 7206vxr w/NPE300.
This morning the loss cleared up.  I didn't collect enough data yesterday to
really get to the bottom of this, so I'll drop it as a Qwest megahost issue.

-----Original Message-----
From: Ted Mittelstaedt [mailto:tedm at toybox.placo.com] 
Sent: Wednesday, April 08, 2009 2:48 PM
To: Ruben Alvarez
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Ping priority on Cisco devices

Ruben Alvarez wrote:
> All,
>
> I've heard that Cisco devices handle ICMP at a low priority.  I found one
> post describing it handled in process-switching and not fast-switching.
> Does anyone have an article that explains that process and is it
> configurable?
>
> The reason I ask is I see about 4% packet loss when I ping devices in our
> broadband aggregation network.  From the CPE to the router there is none,
> from my workstation to the router there is none, but if I ping the whole
> path I get a fairly consistent 4% loss.  I can't find any congestion or
> errors.  Ping from my workstation to the CPE are a consistent 60ms, aside
> from the 4% loss.
>
> Thanks.
>
>   
What model is your router and can you post a config?

What is CPU utilization on the router?  What is memory utilization on 
the router?

Ted