RE: [External] New Version Notification for draft-chen-quic-quicu-01.txt

["Lubashev, Igor" <[e-mail]>]

Are you trying to implement something like https://datatracker.ietf.org/doc/html/draft-lubashev-quic-partial-reliability-02 or https://datatracker.ietf.org/doc/html/draft-lubashev-quic-partial-reliability-03?  (The -02 and -3 versions have somewhat different properties, and some people prefer -02 version.)


  *   Igor

From: Yongyi Yu <[e-mail]>
Sent: Friday, September 23, 2022 1:11 AM
To: Tommy Pauly <[e-mail]>
Cc: Ryan Hamilton <rch=[e-mail]>; [e-mail]; 陈鉴平 <[e-mail]>; 景君羡 <[e-mail]>; 刘天一 <[e-mail]>
Subject: Re: [External] New Version Notification for draft-chen-quic-quicu-01.txt

Thanks for your replying. I agree "partial reliability" fits our draft better, since we do retransmit lost data and provide in-order transmission. And, our proposal could be compatible with H3, should we clarify the behavior in the draft? Please do let me know if you have any further advice.

Thanks,
Yongyi.
From: "Tommy Pauly"<[e-mail]<mailto:[e-mail]>>
Date: Thu, Sep 22, 2022, 11:32
Subject: Re: [External] New Version Notification for draft-chen-quic-quicu-01.txt
To: "Ryan Hamilton"<rch=[e-mail]<mailto:rch=[e-mail]>>
Cc: "于涌溢"<[e-mail]<mailto:[e-mail]>>, "[e-mail]<mailto:[e-mail]>"<[e-mail]<mailto:[e-mail]>>, "陈鉴平"<[e-mail]<mailto:[e-mail]>>, "景君羡"<[e-mail]<mailto:[e-mail]>>, "刘天一"<[e-mail]<mailto:[e-mail]>>
I noticed that this draft does reference RFC 9221, and DATAGRAM frames.

If I’m understanding correctly, it seems like this is trying to define an approach for what’s more commonly referred to as “partial reliability”, which was something DATAGRAM explicitly didn’t try to include.

If this is the case, I think it would be useful to reframe the document in terms of that, since the heavy use of “unreliable” is quite confusing. It also isn’t clear to me how this proposal would work with specific application protocols on top of QUIC — is this something that’s meant to be compatible with H3, or is it for entirely separate use cases?

Best,
Tommy

On Sep 21, 2022, at 3:17 PM, Ryan Hamilton <rch=[e-mail]<mailto:rch=[e-mail]>> wrote:

QUIC has support for unreliable data via the DATAGRAM frame, RFC 9221<https://urldefense.com/v3/__https:/www.rfc-editor.org/info/rfc9221__;!!GjvTz_vk!VHC6upHgCOojEiYhln21JerQBPYz1cbPLifo7gevl5sFTM-5qEoTkN-TxpvuKG1MQfnSBiZsXrrQ2OC2qjWu1aws$>. It seems that this new proposal attempts to add unreliable data support not to QUIC, but to QUIC *streams*. QUIC streams, of course, offer a reliable, in-order, sequence of bytes. Did you consider starting with DATAGRAMs, and building from there instead?

Cheers,

Ryan

On Wed, Sep 21, 2022 at 1:14 AM 于涌溢 <[e-mail]<mailto:[e-mail]>> wrote:
Deal all,

We would like to introduce an extension of the QUIC protocol for unreliable data transmission called QUIC Unreliable (QUICU) . The following draft is submitted for your consideration and comments. We would also like to present this at IETF 115 to discuss further.

To summarize on this draft: it describes an extension of the QUIC protocol for unreliable data transmission called QUIC Unreliable (QUICU), which mainly through the definition and use of three new types of frames, namely the Expire Offset Frame, Boundary Frame, and Correlation Frame. The main purpose of this extension is to reduce data delivery delay. Through controlling the timing and scope of packet losses, QUICU reduces useless transmission to improve transmission efficiency, reduces head-of-line blocking to improve transmission timeliness, which are beneficial to delay-sensitive applications, especially audio and video applications. This document describes the motivation, the operations, and the wire formats of the three new types of frames.

Link to html: https://datatracker.ietf.org/doc/html/draft-chen-quic-quicu-01<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-chen-quic-quicu-01__;!!GjvTz_vk!VHC6upHgCOojEiYhln21JerQBPYz1cbPLifo7gevl5sFTM-5qEoTkN-TxpvuKG1MQfnSBiZsXrrQ2OC2qol99skU$>

Please feel free to reach us for any comments or questions on this.

Thanks,
Yongyi.

---------- Forwarded message ---------
From: [e-mail]<mailto:[e-mail]>
Date: Mon, Sep 19, 2022, 20:54
Subject: [External] New Version Notification for draft-chen-quic-quicu-01.txt
To: "Jianping Chen"<[e-mail]<mailto:[e-mail]>>, "Junxian Jing"<[e-mail]<mailto:[e-mail]>>, "Tianyi Liu"<[e-mail]<mailto:[e-mail]>>, "Yongyi Yu"<[e-mail]<mailto:[e-mail]>>
A new version of I-D, draft-chen-quic-quicu-01.txt
has been successfully submitted by Yongyi Yu and posted to the
IETF repository.

Name:                draft-chen-quic-quicu
Revision:        01
Title:                An Unreliable Extension to QUIC
Document date:        2022-09-19
Group:                Individual Submission
Pages:                10
URL:            https://www.ietf.org/archive/id/draft-chen-quic-quicu-01.txt<https://urldefense.com/v3/__https:/www.ietf.org/archive/id/draft-chen-quic-quicu-01.txt__;!!GjvTz_vk!VHC6upHgCOojEiYhln21JerQBPYz1cbPLifo7gevl5sFTM-5qEoTkN-TxpvuKG1MQfnSBiZsXrrQ2OC2qgIVZwR1$>
Status:         https://datatracker.ietf.org/doc/draft-chen-quic-quicu/<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-chen-quic-quicu/__;!!GjvTz_vk!VHC6upHgCOojEiYhln21JerQBPYz1cbPLifo7gevl5sFTM-5qEoTkN-TxpvuKG1MQfnSBiZsXrrQ2OC2qqEw9hmD$>
Htmlized:       https://datatracker.ietf.org/doc/html/draft-chen-quic-quicu<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-chen-quic-quicu__;!!GjvTz_vk!VHC6upHgCOojEiYhln21JerQBPYz1cbPLifo7gevl5sFTM-5qEoTkN-TxpvuKG1MQfnSBiZsXrrQ2OC2qk9rs9H6$>
Diff:           https://www.ietf.org/rfcdiff?url2=draft-chen-quic-quicu-01<https://urldefense.com/v3/__https:/www.ietf.org/rfcdiff?url2=draft-chen-quic-quicu-01__;!!GjvTz_vk!VHC6upHgCOojEiYhln21JerQBPYz1cbPLifo7gevl5sFTM-5qEoTkN-TxpvuKG1MQfnSBiZsXrrQ2OC2qv4nuLVS$>

Abstract:
  QUIC Unreliable (QUICU) is an extension of the QUIC protocol for
  unreliable data transmission, mainly through the definition and use
  of three new types of frames, namely the Expire Offset Frame,
  Boundary Frame, and Correlation Frame. The main purpose of this
  extension is to reduce data delivery delay. Through controlling the
  timing and scope of packet losses, QUICU reduces useless transmission
  to improve transmission efficiency, reduces head-of-line blocking to
  improve transmission timeliness, which are beneficial to delay-
  sensitive applications, especially audio and video applications.

  This document describes the motivation, the operations, and the wire
  formats of the three new types of frames.




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