DualQ Coupled AQM for Low Latency, Low Loss and Scalable Throughput
draft-briscoe-tsvwg-aqm-dualq-coupled-00
Document | Type | Replaced Internet-Draft (tsvwg WG) | |
---|---|---|---|
Authors | Koen De Schepper , Bob Briscoe , Olga Bondarenko , Ing Tsang | ||
Last updated | 2017-05-04 (latest revision 2016-10-31) | ||
Replaces | draft-briscoe-aqm-dualq-coupled | ||
Replaced by | draft-ietf-tsvwg-aqm-dualq-coupled | ||
Stream | IETF | ||
Intended RFC status | (None) | ||
Formats |
Expired & archived
pdf
htmlized (tools)
htmlized
bibtex
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Stream | WG state | Adopted by a WG | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | Replaced by draft-ietf-tsvwg-aqm-dualq-coupled | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | (None) | ||
Send notices to | (None) |
https://www.ietf.org/archive/id/draft-briscoe-tsvwg-aqm-dualq-coupled-00.txt
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.
Authors
Koen De Schepper
(koen.de_schepper@nokia.com)
Bob Briscoe
(ietf@bobbriscoe.net)
Olga Bondarenko
(olgabnd@gmail.com)
Ing Tsang
(ing-jyh.tsang@nokia.com)
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)