RFC 4960 Errata and Issues
draft-ietf-tsvwg-rfc4960-errata-08

Document Type Active Internet-Draft (tsvwg WG)
Last updated 2018-11-05 (latest revision 2018-10-22)
Replaces draft-tuexen-tsvwg-rfc4960-errata
Stream IETF
Intended RFC status Informational
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Reviews
Stream WG state Submitted to IESG for Publication (wg milestone: Dec 2017 - Submit 'RFC 4960 Err... )
Document shepherd Gorry Fairhurst
Shepherd write-up Show (last changed 2018-05-21)
IESG IESG state RFC Ed Queue
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Responsible AD Spencer Dawkins
Send notices to "Gorry Fairhurst" <gorry@erg.abdn.ac.uk>
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RFC Editor RFC Editor state EDIT
Network Working Group                                         R. Stewart
Internet-Draft                                             Netflix, Inc.
Intended status: Informational                                 M. Tuexen
Expires: April 25, 2019                 Muenster Univ. of Appl. Sciences
                                                              M. Proshin
                                                                Ericsson
                                                        October 22, 2018

                       RFC 4960 Errata and Issues
                 draft-ietf-tsvwg-rfc4960-errata-08.txt

Abstract

   This document is a compilation of issues found since the publication
   of RFC4960 in September 2007 based on experience with implementing,
   testing, and using SCTP along with the suggested fixes.  This
   document provides deltas to RFC4960 and is organized in a time
   ordered way.  The issues are listed in the order they were brought
   up.  Because some text is changed several times the last delta in the
   text is the one which should be applied.  In addition to the delta a
   description of the problem and the details of the solution are also
   provided.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 25, 2019.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents

Stewart, et al.          Expires April 25, 2019                 [Page 1]
Internet-Draft         RFC 4960 Errata and Issues           October 2018

   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Corrections to RFC 4960 . . . . . . . . . . . . . . . . . . .   4
     3.1.  Path Error Counter Threshold Handling . . . . . . . . . .   4
     3.2.  Upper Layer Protocol Shutdown Request Handling  . . . . .   5
     3.3.  Registration of New Chunk Types . . . . . . . . . . . . .   6
     3.4.  Variable Parameters for INIT Chunks . . . . . . . . . . .   7
     3.5.  CRC32c Sample Code on 64-bit Platforms  . . . . . . . . .   8
     3.6.  Endpoint Failure Detection  . . . . . . . . . . . . . . .   9
     3.7.  Data Transmission Rules . . . . . . . . . . . . . . . . .  10
     3.8.  T1-Cookie Timer . . . . . . . . . . . . . . . . . . . . .  11
     3.9.  Miscellaneous Typos . . . . . . . . . . . . . . . . . . .  12
     3.10. CRC32c Sample Code  . . . . . . . . . . . . . . . . . . .  19
     3.11. partial_bytes_acked after T3-rtx Expiration . . . . . . .  20
     3.12. Order of Adjustments of partial_bytes_acked and cwnd  . .  21
     3.13. HEARTBEAT ACK and the association error counter . . . . .  22
     3.14. Path for Fast Retransmission  . . . . . . . . . . . . . .  23
     3.15. Transmittal in Fast Recovery  . . . . . . . . . . . . . .  24
     3.16. Initial Value of ssthresh . . . . . . . . . . . . . . . .  25
     3.17. Automatically Confirmed Addresses . . . . . . . . . . . .  26
     3.18. Only One Packet after Retransmission Timeout  . . . . . .  27
     3.19. INIT ACK Path for INIT in COOKIE-WAIT State . . . . . . .  28
     3.20. Zero Window Probing and Unreachable Primary Path  . . . .  29
     3.21. Normative Language in Section 10  . . . . . . . . . . . .  30
     3.22. Increase of partial_bytes_acked in Congestion Avoidance .  33
     3.23. Inconsistency in Notifications Handling . . . . . . . . .  34
     3.24. SACK.Delay Not Listed as a Protocol Parameter . . . . . .  40
     3.25. Processing of Chunks in an Incoming SCTP Packet . . . . .  42
     3.26. CWND Increase in Congestion Avoidance Phase . . . . . . .  43
     3.27. Refresh of cwnd and ssthresh after Idle Period  . . . . .  46
     3.28. Window Updates After Receiver Window Opens Up . . . . . .  47
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