Lossy cogent p2p experiences?

Fri Sep 1 19:32:16 UTC 2023

Yes adaptive load balancing very much helps but the weakness is it is normally only fully supported on vendor silicon not merchant silicon. Much of the transport edge is merchant silicon due to the per packet cost being far lower and the general requirement to just pass not manipulate packets. Using the Nokia kit for example the 7750 does a great job of "adaptive-load-balancing" but the 7250 is lacklustre at best.

-----Original Message-----
From: NANOG <nanog-bounces+tony=wicks.co.nz at nanog.org> On Behalf Of Saku Ytti
Sent: Friday, September 1, 2023 8:51 PM
To: Eric Kuhnke <eric.kuhnke at gmail.com>
Cc: nanog at nanog.org
Subject: Re: Lossy cogent p2p experiences?

Luckily there is quite a reasonable solution to the problem, called 'adaptive load balancing', where software monitors balancing, and biases the hash_result => egress_interface tables to improve balancing when dealing with elephant flows.