Stream Control Transmission Protocol: Errata and Issues in RFC 4960
RFC 8540
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Type |
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RFC - Informational
(February 2019; No errata)
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Last updated |
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2019-02-19
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Replaces |
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draft-tuexen-tsvwg-rfc4960-errata
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Stream |
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IETF
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plain text
pdf
html
bibtex
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Reviews |
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Gorry Fairhurst
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Shepherd write-up |
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Show
(last changed 2018-05-21)
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IESG state |
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RFC 8540 (Informational)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Spencer Dawkins
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Send notices to |
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"Gorry Fairhurst" <gorry@erg.abdn.ac.uk>
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| IANA |
IANA review state |
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Version Changed - Review Needed
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IANA action state |
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No IANA Actions
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Internet Engineering Task Force (IETF) R. Stewart
Request for Comments: 8540 Netflix, Inc.
Category: Informational M. Tuexen
ISSN: 2070-1721 Muenster Univ. of Appl. Sciences
M. Proshin
Ericsson
February 2019
Stream Control Transmission Protocol:
Errata and Issues in RFC 4960
Abstract
This document is a compilation of issues found since the publication
of RFC 4960 in September 2007, based on experience with implementing,
testing, and using the Stream Control Transmission Protocol (SCTP)
along with the suggested fixes. This document provides deltas to RFC
4960 and is organized in a time-ordered way. The issues are listed
in the order in which they were brought up. Because some text is
changed several times, the last delta in the text is the one that
should be applied. In addition to the deltas, a description of each
problem and the details of the solution for each are also provided.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are candidates for any level of Internet
Standard; see Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc8540.
Stewart, et al. Informational [Page 1]
RFC 8540 SCTP: Errata and Issues in RFC 4960 February 2019
Copyright Notice
Copyright (c) 2019 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
(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 . . . . . . . 19
3.12. Order of Adjustments of partial_bytes_acked and cwnd . . 20
3.13. HEARTBEAT ACK and the Association Error Counter . . . . . 21
3.14. Path for Fast Retransmission . . . . . . . . . . . . . . 22
3.15. Transmittal in Fast Recovery . . . . . . . . . . . . . . 23
3.16. Initial Value of ssthresh . . . . . . . . . . . . . . . . 24
3.17. Automatically CONFIRMED Addresses . . . . . . . . . . . . 25
3.18. Only One Packet after Retransmission Timeout . . . . . . 26
3.19. INIT ACK Path for INIT in COOKIE-WAIT State . . . . . . . 27
3.20. Zero Window Probing and Unreachable Primary Path . . . . 28
3.21. Normative Language in Section 10 of RFC 4960 . . . . . . 29
3.22. Increase of partial_bytes_acked in Congestion Avoidance . 32
3.23. Inconsistent Handling of Notifications . . . . . . . . . 33
3.24. SACK.Delay Not Listed as a Protocol Parameter . . . . . . 37
3.25. Processing of Chunks in an Incoming SCTP Packet . . . . . 39
3.26. Increasing the cwnd in the Congestion Avoidance Phase . . 41
3.27. Refresh of cwnd and ssthresh after Idle Period . . . . . 43
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