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The Some Congestion Experienced ECN Codepoint

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Jonathan Morton , Peter G. Heist , Rodney Grimes
Last updated 2023-04-17 (Latest revision 2022-10-14)
Replaces draft-morton-taht-tsvwg-sce
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
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This Internet-Draft is no longer active.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:


This memo reclassifies ECT(1) to be an early notification of congestion on ECT(0) marked packets, which can be used by AQM algorithms and transports as an earlier signal of congestion than CE. It is a simple, transparent, and backward compatible upgrade to existing IETF-approved AQMs, RFC3168, and nearly all congestion control algorithms.


Jonathan Morton
Peter G. Heist
Rodney Grimes

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)