Re: [pim] Q on the congestion awareness of routing protocols

Jonathan Morton <chromatix99@gmail.com> Sun, 18 December 2022 07:11 UTC

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Subject: Re: [pim] Q on the congestion awareness of routing protocols
From: Jonathan Morton <chromatix99@gmail.com>
In-Reply-To: <BL0PR05MB56529DBC5D9299428B0D2A84D4E79@BL0PR05MB5652.namprd05.prod.outlook.com>
Date: Sun, 18 Dec 2022 09:11:50 +0200
Cc: Toerless Eckert <tte@cs.fau.de>, Jon Crowcroft <Jon.Crowcroft@cl.cam.ac.uk>, BIER WG <bier@ietf.org>, "routing-discussion@ietf.org" <routing-discussion@ietf.org>, Matt Mathis <mattmathis=40google.com@dmarc.ietf.org>, "tsv-area@ietf.org" <tsv-area@ietf.org>, Stewart Bryant <stewart.bryant@gmail.com>, pim <pim@ietf.org>
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To: "Jeffrey (Zhaohui) Zhang" <zzhang=40juniper.net@dmarc.ietf.org>
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> On 17 Dec, 2022, at 4:32 pm, Jeffrey (Zhaohui) Zhang <zzhang=40juniper.net@dmarc.ietf.org> wrote:
> 
> - There are situations where a non-TCP based solution is needed even when a parallel TCP-based option is also present, so we can not simply disallow the former. We can discuss examples separately (one example is actually PIM as BIER overlay vs mLDP/BGP as BIER overlay).

There are also congestion control algorithms that don't rely on an underlying TCP session, such as TFRC (TCP Friendly Rate Control).  Possibly these could be applied to existing protocols.

 - Jonathan Morton