[c-nsp] Total output drops

[Peter Rathlev]

On Thu, 2009-10-29 at 11:27 +0200, Andrey O.Sokolov wrote:
> I have a problem with total output drops on the etherchannel.
> 
> I have the etherchannel between 
> cisco WS-C3560E-24TD (System image file is "flash:/c3560e-universalk9-mz.122-46.SE.bin") and
> CISCO7606 (SUP-32) (c7600s3223_rp Software (c7600s3223_rp-ADVIPSERVICESK9-M), Version 12.2(33)SRB4, RELEASE SOFTWARE (fc3))
[...]
> Port-channel1 is up, line protocol is up (connected) 
[...]
>   Members in this channel: Gi0/7 Gi0/8 Gi0/9 Gi0/10 Gi0/11 Gi0/12 Gi0/13 Gi0/14 
>   ARP type: ARPA, ARP Timeout 04:00:00
>   Last input never, output 00:02:19, output hang never
>   Last clearing of "show interface" counters never
>   Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 46509
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> This counter constantly increasing :(

I assume the dropping is only on the 3560E. What does "show interface
Po1 counters errors" say? Are they all OutDiscards?

If they are, look at the QoS drop stats (even though QoS is disabled):
"show platform port-asic stats drop Gi0/7" and so on.

It might be the shallow buffers discussed many times on this list.

-- 
Peter