Hi Sasha.
Yeah nothing in IETF week allows for perfect scheduling.
I'm sure Xuesong and I would be happy to give a quick 10 minute briefing and hear other voices during coffee breaks.
And I'll udertake to write a summary email to report on the meeting.
Cheers,
Adrian
On 31/10/2024 19:36 GMT Alexander Vainshtein <alexander.vainsht...@rbbn.com> wrote:
Adrian hi!
Please note that the BIER WG session is scheduled for 17:30-19:00 on Monday, 04-Nov-24.
Assuming that the side meeting would take more than half an hour, this creates an overlap for me and, presumably, some other participants.
What do you think?
Regards,
Sasha
From: Adrian Farrel <adr...@olddog.co.uk>
Sent: Thursday, October 31, 2024 7:16:54 PM
To: r...@ietf.org <r...@ietf.org>; rtgwg@ietf.org <rtgwg@ietf.org>; routing-discuss...@ietf.org <routing-discuss...@ietf.org>; l...@ietf.org <l...@ietf.org>
Subject: [EXTERNAL] Side meeting on adaptive/perceptive routing
Hi,
Pardon the cross-posting (please restrict any replies to a single list if
possible).
Over the last few IETF's we have seen a few drafts about routing protocols
for use in networks (especially data centres) where there is a high level of
redundancy in the topology (such as CLOS, Dragonfly, etc.), and a desire to
dynamically load-balance traffic across parallel paths to make better use of
the resources and avoid congestion. Existing routing protocols do not
achieve this well, so new proposals have been made.
Adaptive routing and perceptive routing are approaches are designed to react
to congestion and variations in traffic load to distribute traffic across
parallel paths to make best use of all network resources. Such load
balancing may take place on individual hops in the manner of ECMP, but it is
far more effective if it utilises dynamic multi-hop load balancing.
Dynamic load balancing may also be applicable in general networks. Although
those topologies are not as dense or interconnected as in data centres,
multiple paths may exist giving wider potential for the application of
adaptive/perceptive.
We are having a short side meeting in Dublin (17.00 on Monday) to discuss
the topic of adaptive or perceptive routing.
The main objective of the meeting is to determine whether this is a topic
that the IETF should work on, and if so how/where. We will briefly discuss
the problem space and enumerate the proposals to address the challenges, but
we will spend most of the time discussing whether this should receive more
attention in the IETF. If there is common ground, the meeting will attempt
to scope the work and develop a proposal to take to the Routing ADs. It's
not clear to us whether this work belongs in an existing working group or
should get its own space for discussion, but we'd like to see what the state
of the art is.
Best,
Adrian and Xuesong
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