[c-nsp] RX No Buff Errors on 7206 w/NPE-G1

[Rodney Dunn]

It would be able to handle a higher burst.

I've not tested it to see if it can handle a linerate microburst
on a GE port though.

On Fri, Nov 02, 2007 at 09:28:01AM -0400, Vincent Aniello wrote:
> Would a NPE-G2 processor be able to handle the microbursts or it a
> limitation of the 7200 platform?
> 
> --Vincent
> 
> -----Original Message-----
> From: Rodney Dunn [mailto:rodunn at cisco.com] 
> Sent: Thursday, November 01, 2007 10:52 PM
> To: Justin Shore
> Cc: Vincent Aniello; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] RX No Buff Errors on 7206 w/NPE-G1
> 
> Almost every time I've ever been part of a troubleshooting session
> for Gige overruns and ignores it's microburst on the segment and the
> receiving router can't process the frames quick enough.
> 
> It's so hard to debug because without an analyzer on the wire you
> can't prove it's a micro burst.
> 
> The 65xx/76xx can move those frames are wire rate.
> 
> For small packets the G1 can't.
> 
> Rodney
> 
> On Thu, Nov 01, 2007 at 02:41:14PM -0500, Justin Shore wrote:
> > Vincent,
> > 
> > I saw a similar problem a couple weeks ago with identical hardware 
> > acting as a border router running 12.4(11)T1.  I had overruns on Gi0/1
> 
> > and 2 which connect back to our core 7600s and Gi0/3 which is a 30meg 
> > link to one of our upstream providers.  Neither interface on either
> 7600 
> > had any errors.  I'm at a loss to explain either of our issues.
> > 
> > Justin
> > 
> > 
> > Vincent Aniello wrote:
> > > On a 7206VXR with a NPE-G1 processor I am seeing input errors on a
> > > Gigabit Ethernet interface.  The input errors are due to "ignored"
> > > packets:
> > 
> > _______________________________________________
> > 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/
> 
> 
> Disclaimer: Any references to Pipeline performance contained herein are based on historic performance levels which Pipeline expects to maintain or exceed but nevertheless does not guarantee. Congested networks, price volatility, or other extraordinary events may impede future trading activities and degrade performance statistics.