Re: [tcpm] I-D Action: draft-ietf-tcpm-alternativebackoff-ecn-01.txt

Hi everyone,

JFYI, there were no technical changes here, but we worked much with the text to make it easier to read - mostly due to feedback from Stuart Cheshire.

Cheers,
Michael

> On May 4, 2017, at 10:24 AM, Internet-Drafts@ietf.org wrote:
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the TCP Maintenance and Minor Extensions of the IETF.
> 
>        Title           : TCP Alternative Backoff with ECN (ABE)
>        Authors         : Naeem Khademi
>                          Michael Welzl
>                          Grenville Armitage
>                          Godred Fairhurst
> 	Filename        : draft-ietf-tcpm-alternativebackoff-ecn-01.txt
> 	Pages           : 11
> 	Date            : 2017-05-04
> 
> Abstract:
>   Recent Active Queue Management (AQM) mechanisms instantiate shallow
>   buffers with burst tolerance to minimise the time that packets spend
>   enqueued at a bottleneck.  However, shallow buffering can cause
>   noticeable performance degradation when TCP is used over a network
>   path with a large bandwidth-delay-product.  Traditional methods rely
>   on detecting network congestion through reported loss of transport
>   packets.  Explicit Congestion Notification (ECN) instead allows a
>   router to directly signal incipient congestion.  A sending endpoint
>   can distinguish when congestion is signalled via ECN, rather than by
>   packet loss.  An ECN signal indicates that an AQM mechanism has done
>   its job, and therefore the bottleneck network queue is likely to be
>   shallow.  This document therefore proposes an update to the TCP
>   sender-side ECN reaction in congestion avoidance to reduce the
>   FlightSize by a smaller amount than the congestion control
>   algorithm's reaction to loss.  Future versions of this document will
>   also describe a corresponding method for the Stream Control
>   Transmission Protocol (SCTP).
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-tcpm-alternativebackoff-ecn/
> 
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-tcpm-alternativebackoff-ecn-01
> https://datatracker.ietf.org/doc/html/draft-ietf-tcpm-alternativebackoff-ecn-01
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-tcpm-alternativebackoff-ecn-01
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
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