Re: Announcing the TSVAREA session on "Evolution of IETF Transport Protocols" @ IETF-88

Wesley Eddy <wes@mti-systems.com> Wed, 23 October 2013 14:55 UTC

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Date: Wed, 23 Oct 2013 10:53:59 -0400
From: Wesley Eddy <wes@mti-systems.com>
Organization: MTI Systems
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To: Martin Stiemerling <mls.ietf@gmail.com>, tsv-area@ietf.org
Subject: Re: Announcing the TSVAREA session on "Evolution of IETF Transport Protocols" @ IETF-88
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On 10/23/2013 3:12 AM, Martin Stiemerling wrote:
> Dear all,
> 
> We would like to give time to the Transport Area to discuss any
> potential need to evolve the IETF transport protocols.
> 
> There are a number of proposals discussed in the IETF and outside of the
> IETF on changing parts of TCP (e.g. laminar TCP [1]), reusing parts of
> TCP (e.g., TCP Minion [2]), completely new transport protocols (e.g.
> QUIC [3]), and also discussions about the congestion control approach to
> be used (e.g., delay-based [4], LEDBAT [5]).
> 
> (We are fully aware that this list of proposals is incomplete)
> 


One other protocol that has been floating around outside the IETF for
awhile is Saratoga, though we've talked about it a little in TSVWG
and there are a number of internet-drafts:
http://datatracker.ietf.org/doc/draft-wood-tsvwg-saratoga/
http://datatracker.ietf.org/doc/draft-wood-tsvwg-saratoga-congestion-control/
http://datatracker.ietf.org/doc/draft-eddy-tsvwg-saratoga-tfrc/

There are several interesting things about Saratoga related to transport
protocol evolution, so I thought it might be another interesting
datapoint in the field.  Off the top of my head, relevant features are:

- runs over UDP for deployability
- can run over highly asymmetric paths (e.g. 1000s-to-1 b/w ratio)
- flexibly implements different congestion control algorithms
- copes with extremely high latency or unidirectional connectivity


> Let Spencer and me know at tsv-ads@tools.ietf.org if you are interested
> in contributing actively to the session.


If it's of interest, I could briefly present the state of Saratoga
(e.g. 5 minutes), and possible future plans.

-- 
Wes Eddy
MTI Systems