On Wed, 2 Sep 2009, James Berwick wrote:

First thing I'd try here would be to configure some ubr value on the OC3, set it to 120 megabit/s or something like that. If that helps, increase until you get close to wirespeed and see if the problem creeps up the higher the UBR. The behaviour you're seeing is alike to what I've seen when there is a cell policer dropping cells somewhere.

I rebuilt a PVC on the circuit to ubr 149760 (full linespeed of our OC3) and

To re-iterate.

Set it to 120 megs and try again. If there is still a problem, lower it and see if it helps.

Also, what Cisco hardware are you using exactly? PA-A3-OC3* cards in VIP2-50:s or are you using better gear?

--
Mikael Abrahamsson    email: [email protected]
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