On-Off flows

[Artur Ziviani <artur@gta.ufrj.br>]

Hi,

I am trying to simulate a topology where a great number 
of On-Off flows (about a thousand) arrive at a 
single bottleneck link.

All the on-off sources are configured as follows:

        $onoff($i) set rate_ 64Kb 
        $onoff($i) set burst_time_ 720ms
        $onoff($i) set idle_time_ 1080ms

I got from ns a sequence of warnings like this one:

ns: scheduler going backwards in time from 240.308663 to 240.306623.

Is this a problem of accuracy at the time variable of the scheduler?
Has anyone got a similar problem?

Any help is welcome.

Thanks,

Artur.

-- 
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Artur Ziviani                             M.Sc. Student

Grupo de Teleinformatica e Automacao (GTA) - COPPE/UFRJ
E-mail: artur@gta.ufrj.br 
WWW:	http://www.gta.ufrj.br/~artur
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