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CurrentBEST CURRENT PRACTICEIETF streamBCP41

RFC 7141: Byte and Packet Congestion Notification

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

This document provides recommendations of best current practice for dropping or marking packets using any active queue management (AQM) algorithm, including Random Early Detection (RED), BLUE, Pre- Congestion Notification (PCN), and newer schemes such as CoDel (Controlled Delay) and PIE (Proportional Integral controller Enhanced). We give three strong recommendations: (1) packet size should be taken into account when transports detect and respond to congestion indications, (2) packet size should not be taken into account when network equipment creates congestion signals (marking, dropping), and therefore (3) in the specific case of RED, the byte- mode packet drop variant that drops fewer small packets should not be used. This memo updates RFC 2309 to deprecate deliberate preferential treatment of small packets in AQM algorithms.

Document record

Document ID
RFC7141
Published
February 2014
Authors
B. Briscoe; J. Manner
Status
BEST CURRENT PRACTICE
Stream
IETF
Area
wit
Pages
41
Also known as
BCP41
Updates:
RFC 2309, RFC 2914

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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/7141-byte-and-packet-congestion-notification