[c-nsp] HighQueueDropRate ?

[Gregori Parker]

Thanks for the reply - I did find that same information before posting,
it just didn't help me arrive at any conclusions.

I took your advice however and ran the outputs of 'sh int' and 'sh
buffers' thru CCO's OI...this led me to the following guide:
http://www.cisco.com/en/US/customer/products/hw/routers/ps133/products_t
ech_note09186a0080094791.shtml#topic3 

I was able to eliminate proc, mem and switching as potential issues -
and it appears that I'm down to traffic destined for the router itself
as the most likely culprit.  This router does act as a BGP neighbor at
the edge of my network, so I believe it may have something to do with
iBGP routing updates (this is an inside interface reporting the issue).
This is further evidenced by being able to reproduce the alert by
simulating an external link failure.  I'm continuing to investigate, but
thought I'd add this information in hopes that it may spark some
thoughts on the matter.  I'll know more the next time I'm able to catch
it in the act :)



-----Original Message-----
From: Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com] 
Sent: Monday, August 06, 2007 11:32 PM
To: Gregori Parker; NSP List
Subject: RE: [c-nsp] HighQueueDropRate ?

Gregori Parker <> wrote on Monday, August 06, 2007 9:51 PM:

> I have CiscoWorks DFM complaining to me about HighQueueDropRate on the
> inside interface of one of my edge routers (7200)...the alert comes
> pretty infrequently (once a week or so), and I'm unable to find much
> information about what exactly it means.  Has anyone run into this
> alert or have some insight on this?

google brings up

http://www.cisco.com/en/US/docs/net_mgmt/ciscoworks_device_fault_manager
/2.0_IDU_2.0.3/user/guide/Events.html

HighQueueDropRate

Description: Number of packets discarded due to input or output queue
overflow exceeding the Queue drop threshold. The input (or output) queue
overflow is derived by dividing the number of packets designated to be
sent (or received) that were discarded due to queue overflow, by the
total number of packets in the queue.

Trigger: Exceeded Queue drop threshold.
Severity: Critical.
Device Type: All.
Event Code: 1012. 

Take a look at "show int" of the corresponding interface via CLI and go
from there.. CCO's Output Interpreter can help you diagnose the issue..

	oli