[c-nsp] "Total output drops" - congestion ? - 7200-VXR

[David Freedman]

It is inadvisable to increase the output hold-queue as far as I am
aware, this could cause packets to be delayed on egress which could
cause TCP timeouts.

Dave.

Farhan Jaffer wrote:
> Have you tried 'hold-queue ...' command. This may resolves your problem.
> 
> 
> On Wed, Jul 16, 2008 at 11:22 AM, Wilkinson, Alex
> <alex.wilkinson at dsto.defence.gov.au> wrote:
>> Hi all,
>>
>> I am having problems with a particular device going down every 3-4 days.
>> The switchport for which this device is connected to is telling me it is
>> having a lot of "output drops" e.g.
>>
>>   Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 13342805
>>
>> I 'suspect' that these output drops could be the root cause of the device
>> attached to this port going down consistently.
>>
>> Question: Since 'output drops' seems to relate to interface congestion can
>>          anyone recommed a tool to 'blast' this particular interface in
>>          order to test {in,out}queues and congestion ?
>>
>>  -aW
>>
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>>
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