RFC 2481 · EXPERIMENTAL · 1999
MON · 27 JUL 2026
A Proposal to add Explicit Congestion Notification to IP
Overview
RFC 2481, “A Proposal to add Explicit Congestion Notification to IP”, is an Experimental document published in January 1999 by K. Ramakrishnan, S. Floyd. It has been obsoleted by RFC 3168 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This note describes a proposed addition of ECN (Explicit Congestion Notification) to IP. This memo defines an Experimental Protocol for the Internet community.
What “Experimental” means
Describes a specification that is part of a research or development effort, published so the community can gain experience with it.
Read this RFC
The canonical text of RFC 2481 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
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