[c-nsp] Cleaning fibre reduces latency ??

[jp]

I presume you mean round-trip latency. If the dirty connection was on 
the transmit side, there would be no errors at the sending end, just at 
the far end or intermediate hardware. The local receive would be a 
different fiber patch that was clean, thus show no errors.

On Thu, Aug 10, 2006 at 10:49:58AM +0100, kevin gannon wrote:
> We had a problem on our network where we have 2 STM4's run over the same
> fibre and DWDM equipment. The 2 STM's terminate on identical 7606's. One
> ran at 5ms and another at 12ms without load.
> 
> There were no transmission errors seen or no errors on a "show controls pos
> x/y".
> On cleaning the fibres into the router with the higher latency it seem to
> fix the
> issue. A hard loop with a different cable showed a the latency to be normal.
> 
> Anyone have any idea what might have caused this given we saw no errors
> on the controller ?
> 
> Thanks & Regards
> Kevin
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