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ObsoletedPROPOSED STANDARDLegacy stream

RFC 2001: TCP Slow Start, Congestion Avoidance, Fast Retransmit, and Fast Recovery Algorithms

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 2581.

Current document in this lineage: RFC 5681 — TCP Congestion Control

In plain English — editorial summary, not part of the RFC

Modern implementations of TCP contain four intertwined algorithms that have never been fully documented as Internet standards: slow start, congestion avoidance, fast retransmit, and fast recovery. [STANDARDS-TRACK]

Document record

Document ID
RFC2001
Published
January 1997
Authors
W. Stevens
Status
PROPOSED STANDARD
Stream
Legacy
Area
—
Pages
6
Also known as
—
Obsoleted by:
RFC 2581

Topics

Standards lineage

This document is one revision in a chain of 3 RFCs, each formally replacing the one before it.

  1. RFC 2001 (1997)
  2. RFC 2581 (1999)
  3. RFC 5681 (2009) ✓

Read the full history of TCP Congestion Control →

Referenced by

One later RFC formally updates or obsoletes part of this document.

Related documents

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/2001-tcp-slow-start-congestion-avoidance-fast-retransmit-and-fast-recovery-algorithms