nanog mailing list archives

Re: UDP clamped on service provider links


From: Brad Fleming <bdflemin () gmail com>
Date: Fri, 31 Jul 2015 10:08:19 -0500


In one case, when we were having an issue with a SIP trunk, we re-numbered
our end to another IP in the same subnet. Same path from A to Z, but the
packet loss mysteriously disappeared using the new IP.

lag hash put you on a congested fiber?

Or perhaps a switch fabric module geeked out and impacted 1/3rd or 1/4th of the flows through the box? We’ve seen that 
exact scenario more times then I want to admit with our old equipment vendor.

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