Re: Multicast drops

Does "show proc cpu history" show any spikes during the one minute time
interval?

Jason Boyers - CCIE #26024 (Wireless)
Technical Instructor - IPexpert, Inc.
Mailto: *jboyers_at_ipexpert.com
*

On Fri, Jun 10, 2011 at 10:58 AM, Persio Pucci <persio_at_gmail.com> wrote:

> Things got funnier...
>
> before my international hop I have two 7304 (being one of them the one
> where the int'l connection is) and if I test connectivity between
> them, I'll miss a ping packet every 10 seconds. All other packets make
> it in 1ms or less, but every ~10 seconds I miss a ping.
>
> I have already changed the SFPs and patch cords on these connections,
> have even replaced both NPE-G100 on the 7300s. I still have those
> hicups.
>
> No CoPP is configured, and I can feel this symptom when accessing
> remote terminals...
>
> What could it be besides hardware? The 10s constant makes me think of
> some recurring process, but can't find anything.
>
>
> On Wed, Jun 8, 2011 at 11:37 AM, Persio Pucci <persio_at_gmail.com> wrote:
> > Hi all,
> >
> > I am having some trouble trying to identify and determine what is
> > causing packet drops on my multicast network, and I am looking for
> > someone to shed some light into it :)
> >
> > From my complete network ,it looks like we've been able to pin-point
> > the leg where the packet drops occur (we've done it by capturing
> > packets along the way and comparing the captures). The problematic leg
> > is an international OC12 circuit, 100ms latency, from a 7304 running
> > NPE-G100, landing on a 3750.
> >
> > We've tried to eliminate hardware issues, replacing all SFPs, patch
> > cords, changing interfaces and even changing NPEs to no good. We still
> > see some random packet drops along the route. The multicast stream is
> > about 5Mbps and there is no concurrent traffic (yeah, an OC12 for
> > 5Mbps...).
> >
> > Appreciate any help!
>
>
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Received on Fri Jun 10 2011 - 11:24:28 ART