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Lightweight Fair Queueing

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Jonathan Morton , Peter G. Heist
Last updated 2020-01-03 (Latest revision 2019-07-02)
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)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This note presents Lightweight Fair Queueing (LFQ), a fair queueing algorithm with a small code footprint, low memory requirements, no multiply operations, only two physical queues, and only one set of AQM state. LFQ provides throughput fairness, sparse flow prioritization and ordering guarantees, making it suitable for a mixture of traffic flow types.


Jonathan Morton
Peter G. Heist

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