Re: [IETF106] Proposed workshop on QUIC performance over high BDP

Joerg Ott <ott@in.tum.de> Wed, 06 November 2019 19:46 UTC

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Subject: Re: [IETF106] Proposed workshop on QUIC performance over high BDP
To: Gorry Fairhurst <gorry@erg.abdn.ac.uk>, "etosat@ietf.org" <etosat@ietf.org>, IETF QUIC WG <quic@ietf.org>, "iccrg@irtf.org" <iccrg@irtf.org>, "tsvwg@ietf.org" <tsvwg@ietf.org>
Cc: STEPHAN Emile RD-CORE-LAN <emile.stephan@orange.com>, =?UTF-8?Q?Robert_Br=c3=bcnig?= <robert.bruenig@gmail.com>
References: <F3B0A07CFD358240926B78A680E166FF1ECE4F1F@TW-MBX-P03.cnesnet.ad.cnes.fr> <314f4a3c-9e56-26b6-fda3-bc2694f75d3e@in.tum.de> <05fcdc09-4d86-980c-ced7-30fbc544569e@erg.abdn.ac.uk>
From: Joerg Ott <ott@in.tum.de>
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Date: Wed, 6 Nov 2019 20:46:18 +0100
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We used quicly as QUIC implementation and built our own little
qperf (https://github.com/rbruenig/qperf) for running our experiments.

We did not use a full-blown satellite simulator but rather focused on
latency and capacity caps as well as (random) packet losses.  We just
used tc/netem qdisc for link emulation.

Jörg

On 05.11.19 11:11, Gorry Fairhurst wrote:
> 
> Yes, that sounds fun! - which QUIC implementation were you using, just 
> so we can make sure we compare like-with-like, and did you use an 
> operational satellite system or an emulation, or something in-between?
> 
> Gorry
> 
> On 05/11/2019 09:38, Joerg Ott wrote:
>> Hi guys,
>>
>> great activity -- we also did extensive emulation studies for QUIC
>> over satellites in a controlled environment.  Would be happy to
>> share those findings if room.
>>
>> Cheers,
>> Jörg
>>
>> On 05.11.19 09:57, Kuhn Nicolas wrote:
>>> Hi,
>>>
>>> There are multiple drafts related to the performance of QUIC over 
>>> large BDP networks (draft-kuhn-quic-4-sat, draft-kuhn-quic-0rtt-bdp, 
>>> draft-ietf-quic-recovery) or related to the performance of encrypted 
>>> protocols in general (draft-fairhurst-tsvwg-cc).
>>>
>>> The objective of this workshop is to gather people interested in such 
>>> activity and discuss the best way towards better end user experience 
>>> in this use case.
>>>
>>> Details : https://trac.ietf.org/trac/ietf/meeting/wiki/106sidemeetings
>>>
>>> Time : 3pm30 – 4pm30 on Wednesday
>>>
>>> Where : Bras Basah 
>>> https://datatracker.ietf.org/meeting/106/floor-plan?room=bras-basah#raffles-city-convention-center 
>>>
>>>
>>> Proposed agenda:
>>>
>>> Introduction : contributions that showed performance issues with QUIC 
>>> over satellite links
>>>
>>> draft-kuhn-quic-0rtt-bdp : solution to let both client and server 
>>> know the path characteristics
>>>
>>> draft-kuhn-quic-4-sat : what can be done once both client and server 
>>> have this information
>>>
>>> draft-fairhurst-tsvwg-cc : generalization to any transport and best 
>>> current practice on internet congestion control at end points
>>>
>>> If time permits: sharing experimental results (interaction between 
>>> transport and high BDP systems)
>>>
>>> If there is anything you would like to present please let us know.
>>>
>>>
>>> Kind regards,
>>>
>>> Nico, Gorry and Emile
>>>
>