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Re: [tsvwg] I-D Action: draft-ietf-tsvwg-sctp-zero-checksum-01.txt

Claudio Porfiri <claudio.porfiri@ericsson.com> Fri, 14 July 2023 05:37 UTC

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From: Claudio Porfiri <claudio.porfiri@ericsson.com>
To: "tsvwg@ietf.org" <tsvwg@ietf.org>, "i-d-announce@ietf.org" <i-d-announce@ietf.org>
Thread-Topic: [tsvwg] I-D Action: draft-ietf-tsvwg-sctp-zero-checksum-01.txt
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Date: Fri, 14 Jul 2023 05:37:16 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tsvwg/g0q4dGJBe19CWd8K3OM5MLzi00A>
Subject: Re: [tsvwg] I-D Action: draft-ietf-tsvwg-sctp-zero-checksum-01.txt
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Hi Michael,
I am fine with the adoption, I only have a comment on the procedural part that may be ambiguous so that I'd wish to suggest clarification.
In section 3 it's specified that the Zero Checksum parameter may appear in INIT and INIT ACK so I assume that it can also be the Server side asking the Client for Zero Checksum by including the parameter in INIT ACK. Is this case the Client cannot confirm that it has accepted Zero checksum.
It should be stated that it's always the Client asking for Zero Checksum and the Server MUST answer in INIT ACK.

Best regards,
Claudio.

-----Original Message-----
From: tsvwg <tsvwg-bounces@ietf.org> On Behalf Of internet-drafts@ietf.org
Sent: Tuesday, 11 July 2023 01:25
To: i-d-announce@ietf.org
Cc: tsvwg@ietf.org
Subject: [tsvwg] I-D Action: draft-ietf-tsvwg-sctp-zero-checksum-01.txt


A New Internet-Draft is available from the on-line Internet-Drafts
directories. This Internet-Draft is a work item of the Transport Area Working
Group (TSVWG) WG of the IETF.

   Title           : Zero Checksum for the Stream Control Transmission Protocol
   Authors         : Michael Tüxen
                     Victor Boivie
                     Florent Castelli
                     Randell Jesup
   Filename        : draft-ietf-tsvwg-sctp-zero-checksum-01.txt
   Pages           : 10
   Date            : 2023-07-10

Abstract:
   The Stream Control Transmission Protocol (SCTP) uses a 32-bit
   checksum in the common header of each packet to provide some level of
   data integrity.  When an alternate method used by SCTP provides
   already the same or a higher level of data integrity, computing this
   checksum does not provide any additional protection, but does require
   computing resources.  This document provides a simple extension to
   SCTP allowing to save these computing resources by using the constant
   0 as a checksum in a backwards compatible way.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-tsvwg-sctp-zero-checksum/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-tsvwg-sctp-zero-checksum-01.html

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-tsvwg-sctp-zero-checksum-01

Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts

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