nanog mailing list archives

Re: Lossy cogent p2p experiences?


From: Lukas Tribus <lukas () ltri eu>
Date: Fri, 1 Sep 2023 15:37:12 +0000

On Fri, 1 Sept 2023 at 15:55, Saku Ytti <saku () ytti fi> wrote:

On Fri, 1 Sept 2023 at 16:46, Mark Tinka <mark@tinka.africa> wrote:

Yes, this was our conclusion as well after moving our core to PTX1000/10001.

Personally I would recommend turning off LSR payload heuristics,
because there is no accurate way for LSR to tell what the label is
carrying, and wrong guess while rare will be extremely hard to root
cause, because you will never hear it, because the person suffering
from it is too many hops away from problem being in your horizon.
I strongly believe edge imposing entropy or fat is the right way to
give LSR hashing hints.

If you need to load-balance labelled IP traffic though, all your edge
devices would have to impose entropy/fat.

On the hand a workaround at the edge at least for EoMPLS would be to
enable control-word.


Lukas


Current thread: