[Codel] ns-3.15 simulations using CoDel

Dave Taht dave.taht at gmail.com
Sun Sep 30 17:57:35 EDT 2012

The ns3 patches for codel and fq_codel long ago migrated to github.


Is that what you are using?

Secondly codel is mostly targetted at TCP.

On Sun, Sep 30, 2012 at 9:23 AM, Mark Sammut <mas30 at eecs.qmul.ac.uk> wrote:
> Hi all,
> I am trying to run CoDel simulations using ns-3.15 and Andrew McGregor's
> CoDel patch available at http://www.bufferbloat.net/projects/codel/wiki.
> For some reason, I am getting all delay and queue length results using CoDel
> equal to the results using DropTail. Can anyone indicate reasons for such
> performance? I am generating UDP packets using On-Off applications set as a
> Poisson Traffic generator on 10 nodes aggregated on a common node set as the
> bottleneck node. Below is the part of the code which implements CoDel.
>   Config::SetDefault ("ns3::CoDelQueue::Mode", StringValue ("Packets"));
>   Config::SetDefault ("ns3::CoDelQueue::MaxPackets", UintegerValue (10000));
>   Config::SetDefault ("ns3::CoDelQueue::Interval", StringValue ("0.8ms"));
>   Config::SetDefault ("ns3::CoDelQueue::Target", StringValue ("0.2ms"));
>   Config::SetDefault ("ns3::CoDelQueue::MinBytes", UintegerValue(1500));
>   CsmaHelper csma;
>   csma.SetChannelAttribute ("DataRate", StringValue(LinkRate));
>   csma.SetChannelAttribute ("Delay", TimeValue (Seconds (0)));
>   csma.SetQueue ("ns3::CoDelQueue");
> Thanks a lot for your help and best regards,
> Mark
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> Codel at lists.bufferbloat.net
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Dave Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html

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