Datacenter TCP (DCTCP): TCP Congestion Control for Datacenters
draft-ietf-tcpm-dctcp-01
| Document | Type |
This is an older version of an Internet-Draft that was ultimately published as RFC 8257.
Expired & archived
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|---|---|---|---|
| Authors | Stephen Bensley , Lars Eggert , Dave Thaler , Praveen Balasubramanian , Glenn Judd | ||
| Last updated | 2016-05-04 (Latest revision 2015-11-01) | ||
| Replaces | draft-bensley-tcpm-dctcp | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Formats | |||
| Reviews |
GENART Last Call review
(of
-07)
by Orit Levin
Ready w/nits
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| Additional resources | Mailing list discussion | ||
| Stream | WG state | WG Document | |
| Document shepherd | (None) | ||
| IESG | IESG state | Expired | |
| Consensus boilerplate | Unknown | ||
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
This informational memo describes Datacenter TCP (DCTCP), an improvement to TCP congestion control for datacenter traffic. DCTCP uses improved Explicit Congestion Notification (ECN) processing to estimate the fraction of bytes that encounter congestion, rather than simply detecting that some congestion has occurred. DCTCP then scales the TCP congestion window based on this estimate. This method achieves high burst tolerance, low latency, and high throughput with shallow-buffered switches. This memo also discusses deployment issues related to the coexistence of DCTCP and conventional TCP, the lack of a negotiating mechanism between sender and receiver, and presents some possible mitigations.
Authors
Stephen Bensley
Lars Eggert
Dave Thaler
Praveen Balasubramanian
Glenn Judd
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)