[c-nsp] 6500 (Sup7203-bxl / 6724-SFP) Input queue drops

[Drew Weaver]

Drew Weaver wrote:
> Hi,
> 
> It is possible.
> 
> We're a co-location style facility where we do not have direct
> control over what the end systems do.
> 
> I would think that a system like the 6500 should be able to handle a
> little UDP traffic without losing its mind but i've been wrong about
> things in the past =)

Well, mtr is a traceroute style program, and one that can be quite 
aggressive at that (though useful). If it's sending a lot of packets at 
your router which have TTL=1 when they arrive, then that's a lot of CPU 
punts.

You didn't specify whether anything was *wrong* here; are you 
experiencing problems, or just counter anomalies?

I take it the port-channel is in routed mode, rather than switchport?
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The problem is I'm seeing queue drops, so my first reaction to that was to see what kind of packets were being queued.

You are correct the interface is not a switchport and has an IP assigned to it.

thanks,
-Drew