[Codel] Codel, fq_codel in ns3

Dave Taht dave.taht at gmail.com
Fri Aug 10 16:32:19 EDT 2012

Andrew Mcgregor has developed some ns3 models of Kathie Nichols' and
Van Jacobson's new codel algorithm and also incorporated Eric
Dumazet's fq_codel derivative...

VJ's ietf talk last week on codel and fq_codel is here:


we just rebased the ns3 versions against current ns3 head,
and exported it via hg-git to github...


Certain parts of the algorithms remain under heavy development, but on
the whole results are good.

ideas on how to best move forward and sideways with this are welcomed.
I would argue we need some time out of tree to bake further.

(is anyone working on ecn in ns3?)

(plug: codel is being tracked on the codel mailing list on

Dave Täht
http://www.bufferbloat.net/projects/cerowrt/wiki - "3.3.8-6 is out
with fq_codel!"

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