[c-nsp] 7206-VXR Buffer Issue - Update!

[Mark Tinka]

On Wednesday 13 December 2006 10:10, Brian Turnbow wrote:

> A traffic burst is most likely the cause.
> The router keeps n buffers ready and creates more when needed to
> handle traffic bursts. But if the burst is larger then the
> "ready" buffers + the amount that it can create on the fly to
> handle the load, you will see errors on the interfaces and
> "ignored packets". You need to tune the buffers on the router so
> that they are large enough to accomodate your traffic bursts.
> Check out this

Looks like my problem persists.

I tuned my buffers and no longer see any misses, trims or failures 
in all 6 buffers.

However, the router stopped passing traffic through this particular 
port after 13hrs of buffer tuning and a reboot. It lasted 1.5 
minutes and started passing traffic again.

Amazingly, the affected FE port on the PA never actually goes down. 
The port did, however, witness some 42 input/ignore errors prior to 
failing.

Any ideas? Could it be the hardware? The other FE port on the same 
PA does not exhibit this problem.

Mark.
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