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IETF RFC 8257
[ACTIVE]

Data Center TCP (DCTCP): TCP Congestion Control for Data Centers

Metadata

Publisher
IETF
Doc Type
Informational
Pages
17
Abstract
This Informational RFC describes Data Center TCP (DCTCP): a TCP congestion control scheme for data-center traffic. DCTCP extends the 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, discusses the lack of a negotiating mechanism between sender and receiver, and presents some possible mitigations. This memo documents DCTCP as currently implemented by several major operating systems. DCTCP, as described in this specification, is applicable to deployments in controlled environments like data centers, but it must not be deployed over the public Internet without additional measures.
Publication Date
2017-10-01
Status Note
Informational
DOI
10.17487/RFC8257
Link
https://doi.org/10.17487/RFC8257
Author(s)
Stephen Bensley
Dave Thaler
Praveen Balasubramanian
Lars Eggert
Glenn Judd
Keyword(s)
TCP, ECN, DCTCP, Congestion Control
Latest version of IETF RFC 8257

Document Versions — IETF RFC 8257

  • ▶ IETF RFC 8257 (2017-10-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

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IETF RFC 8257, Data Center TCP (DCTCP): TCP Congestion Control for Data Centers. Available at https://doi.org/10.17487/RFC8257
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IETF RFC 8257, Data Center TCP (DCTCP): TCP Congestion Control for Data Centers. Available at https://doi.org/10.17487/RFC8257

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IETF RFC 8257, Data Center TCP (DCTCP): TCP Congestion Control for Data Centers. Available at https://doi.org/10.17487/RFC8257
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<span class="citation"><cite>IETF RFC 8257</cite>, Data Center TCP (DCTCP): TCP Congestion Control for Data Centers. Available at <a href="https://doi.org/10.17487/RFC8257" target="_blank" rel="noopener">https://doi.org/10.17487/RFC8257</a></span>

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IETF RFC 8257, Data Center TCP (DCTCP): TCP Congestion Control for Data Centers
doi: 10.17487/RFC8257
url: https://doi.org/10.17487/RFC8257
Snippet:
<li>
<cite id="bib-rfc8257">IETF RFC 8257</cite>, Data Center TCP (DCTCP): TCP Congestion Control for Data Centers
<span class="doi">10.17487/RFC8257</span>
</li>

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