[Codel] ns-3.15 simulations using CoDel

[Codel] ns-3.15 simulations using CoDel

[Mark Sammut]

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

Re: [Codel] ns-3.15 simulations using CoDel

[Dave Taht]

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

https://github.com/dtaht/ns-3-dev

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@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
> _______________________________________________
> Codel mailing list
> Codel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/codel



-- 
Dave Täht

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

Re: [Codel] ns-3.15 simulations using CoDel

[Yishuang Pang]

[-- Attachment #1.1: Type: text/plain, Size: 378 bytes --]

Hi,

   Could you tell me how to use a patch to add codel to my ns3 simulator?
The version I use is ns-3.15 and I use Ubuntu 12.04. I follow the steps in
this web site http://www.bufferbloat.net/projects/codel/wiki but I still get
error like this. I don’t know how to enable codel and I hope that you could
help me. Thanks a lot!


	
	QQ截图20130221182658.png	
 


[-- Attachment #1.2: Type: text/html, Size: 4609 bytes --]

[-- Attachment #2: image001.png --]
[-- Type: image/png, Size: 60948 bytes --]

[-- Attachment #3: image002.jpg --]
[-- Type: image/jpeg, Size: 35185 bytes --]