Protocol Action: 'SCTP-PF: Quick Failover Algorithm in SCTP' to Proposed Standard (draft-ietf-tsvwg-sctp-failover-16.txt)

The IESG <iesg-secretary@ietf.org> Wed, 17 February 2016 18:03 UTC

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From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Subject: Protocol Action: 'SCTP-PF: Quick Failover Algorithm in SCTP' to Proposed Standard (draft-ietf-tsvwg-sctp-failover-16.txt)
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Date: Wed, 17 Feb 2016 10:03:58 -0800
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Cc: gorry@erg.abdn.ac.uk, tsvwg@ietf.org, rfc-editor@rfc-editor.org, tsvwg-chairs@ietf.org, draft-ietf-tsvwg-sctp-failover@ietf.org, The IESG <iesg@ietf.org>
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The IESG has approved the following document:
- 'SCTP-PF: Quick Failover Algorithm in SCTP'
(draft-ietf-tsvwg-sctp-failover-16.txt) as Proposed Standard

This document is the product of the Transport Area Working Group.

The IESG contact persons are Spencer Dawkins and Martin Stiemerling.

A URL of this Internet Draft is:
https://datatracker.ietf.org/doc/draft-ietf-tsvwg-sctp-failover/

Technical Summary

This describes a standards-track procedure for SCTP to support of failover when working with a multi-homed SCTP end-point:

SCTP supports multi-homing. However, when the failover operation
specified in RFC4960 is followed, there can be significant delay and
performance degradation in the data transfer path failover. To
overcome this problem this document specifies a quick failover
algorithm (SCTP-PF) based on the introduction of a Potentially Failed
(PF) state in SCTP Path Management.

The document also specifies a dormant state operation of SCTP. This
dormant state operation is required to be followed by an SCTP-PF
implementation, but it may equally well be applied by a standard
RFC4960 SCTP implementation.

Additionally, the document introduces an alternative switchback
operation mode called Primary Path Switchover that will be beneficial
in certain situations. This mode of operation applies to both a
standard RFC4960 SCTP implementation as well as to a SCTP-PF
implementation.

The procedures defined in the document require only minimal
modifications to the RFC4960 specification. The procedures are
sender-side only and do not impact the SCTP receiver.

Working Group Summary

Nothing out of the ordinary happened during work on this draft.

Document Quality

Gorry Fairhurst performed an extensive review of -05 version.

The working group requested a change of intended status (from Experimental
to Proposed Standard) during document development, and this was approved.

Personnel

Gorry Fairhurst is the document shepherd.
Spencer Dawkins is the responsible AD.

Protocol Action: 'SCTP-PF: Quick Failover Algorit… The IESG