A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : DualQ Coupled AQM for Low Latency, Low Loss and Scalable Throughput
Authors : Koen De Schepper
Bob Briscoe
Olga Bondarenko
Ing-jyh Tsang
Filename : draft-briscoe-aqm-dualq-coupled-00.txt
Pages : 22
Date : 2015-08-07
Abstract:
Data Centre TCP (DCTCP) was designed to provide predictably low
queuing latency, near-zero loss, and throughput scalability using
explicit congestion notification (ECN) and an extremely simple
marking behaviour on switches. However, DCTCP does not co-exist with
existing TCP traffic---throughput starves. So, until now, DCTCP
could only be deployed where a clean-slate environment could be
arranged, such as in private data centres. This specification
defines `DualQ Coupled Active Queue Management (AQM)' to allow
scalable congestion controls like DCTCP to safely co-exist with
classic Internet traffic. The Coupled AQM ensures that a flow runs
at about the same rate whether it uses DCTCP or TCP Reno/Cubic, but
without inspecting transport layer flow identifiers. When tested in
a residential broadband setting, DCTCP achieved sub-millisecond
average queuing delay and zero congestion loss under a wide range of
mixes of DCTCP and `Classic' broadband Internet traffic, without
compromising the performance of the Classic traffic. The solution
also reduces network complexity and eliminates network configuration.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-briscoe-aqm-dualq-coupled/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-briscoe-aqm-dualq-coupled-00
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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