***SPAM Level 2*** Re: [ns] Virtual Clock and scheduler in NS
sayenko at cc.jyu.fi
Thu Jun 23 02:02:48 PDT 2005
You can use implementation of WFQ with NS-2 v2.27 and v2.28. Both are OK.
Thanks for being interested in my research work. As you might have noticed,
we are working on the adaptive scheduling for various disciplines. Our
latest publication considers the adaptive scheduling for the DiffServ
framework, but it is under review now. As it is available, I can notify you.
Or just contact me later. Besides, there is another article that compares
the performance of the adaptive scheduling for various disciplines,
including WFQ, WRR, and DRR.
Telecommunication laboratory, MIT department
University of Jyvaskyla, Finland
> Hello Sayenko
> Thank you very much for your reply, and especially for the script at your
> website, since I've been looking for the script with VC scheduler and it
> returns nothing.
> Can I use the wfq patch in ns2.27 or should I upgrade my ns to 2.28?
> Thank you for your help.
> > Hi
> > Implementation of VC is quite similar to the implementation of WFQ, as I
> > know. Since you are interested in DiffServ, you can take the
> > implementation
> > of this scheduler for DiffServ from my Web page
> > http://www.cc.jyu.fi/~sayenko/src/diffserv_wfq.diff and use it as a
> > starting
> > point.
> > Good luck !
> > Sincerely,
> > Sayenko Alexander
> > PhD student
> > Telecommunication laboratory, MIT department
> > University of Jyvaskyla, Finland
> >> Hi all,
> >> I am a new NS user, and I am trying to simulate a simple network using
> >> Virtual Clock scheduler and integrating them in Diffserv architecture.
> >> It
> >> involves calculating current simulation time and scheduling when the
> >> packet will be transmitted from a node/a router. My question is how can
> >> I
> >> access the imformation about the current simulation time and passing
> >> value into my simulation object? Is it possible that I run some
> >> background
> >> program that keep tracks of the simulation time, because in my opinion,
> >> that's how a scheduler works. Also, how can I use this scheduler in a
> >> DiffServ environment?Is there any documentation about this, or maybe a
> >> sample script?
> >> Thank you very much in advance for your help.
> >> regards,
> >> christian
> >> --
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