RE: Call for Adoption: draft-pauly-quic-datagram

Ingemar Johansson S <ingemar.s.johansson@ericsson.com> Wed, 15 January 2020 08:03 UTC

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From: Ingemar Johansson S <ingemar.s.johansson@ericsson.com>
To: Tal Mizrahi <tal.mizrahi.phd@gmail.com>, Mark Nottingham <mnot@mnot.net>
CC: IETF QUIC WG <quic@ietf.org>, Lars Eggert <lars@eggert.org>, Ingemar Johansson S <ingemar.s.johansson@ericsson.com>
Subject: RE: Call for Adoption: draft-pauly-quic-datagram
Thread-Topic: Call for Adoption: draft-pauly-quic-datagram
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Date: Wed, 15 Jan 2020 08:03:03 +0000
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Hi



I too believe that this is a good idea and therefore support it.



I am however not convinced that that transmission of DATAGRAM frames should 
mandate a different congestion control. While the scenario you outline below 
can hold in networks with small buffers, you will likely not achieve the 
desired goal in cellular networks which still can have a large delay threshold 
for packet discards.



/Ingemar



From: Tal Mizrahi <tal.mizrahi.phd@gmail.com>
Sent: den 14 januari 2020 08:57
To: Mark Nottingham <mnot@mnot.net>
Cc: IETF QUIC WG <quic@ietf.org>rg>; Lars Eggert <lars@eggert.org>
Subject: Re: Call for Adoption: draft-pauly-quic-datagram



I support the adoption of this draft.



One comment regarding Section 5.3 "Congestion Control": it looks like the data 
sent over DATAGRAM frames is (by definition) not sensitive to occasional 
packet loss, while the congestion control mechanism may be sensitive to 
occasional packet loss (depending on what we mean by "occasional"). It may be 
a good idea to add some discussion about this to Section 5.3. Specifically, I 
believe that when DATAGRAM frames are used, it may be desirable for an 
implementation to use a congestion control mechanism that can tolerate 
occasional packet loss without significantly reducing the rate.



Cheers,

Tal.



On Wed, Dec 11, 2019 at 11:36 PM Mark Nottingham <mnot@mnot.net 
<mailto:mnot@mnot.net> > wrote:

This is a Call for Adoption of the following document:
  https://tools.ietf.org/html/draft-pauly-quic-datagram-05

The Working Group has discussed this document for some time, most recently in 
Singapore.

Please state whether you support adoption of the document by the Working 
Group, and any additional information that you feel may be helpful.

This call will end on 15 January 2020.

Regards,

--
Mark Nottingham   https://www.mnot.net/