Re: Going back in time?

[bsikdar@poisson.ecse.rpi.edu]

hi,
   i have seen this thing happen. one of the cases is when you attach
a member of the /Application/Traffic/..  to TCP sources. This is
because TCP has its own scheduling mechanism based on the cwnd and
other parameters and trying to force it to send packets according
to times generated by traffic generators from /Application/Traffic/..
may violate some restrictions. 

   the bottomline is this may happen if you are attaching a traffic
generator to TCP sources. hope this helps,

							biplab



On Mon, 26 Jul 1999, Deepesh Chouhan wrote:

> hi,
> even i got this error ..
> 
> Please, can somebody help us out.
> 
> Deepesh
> 
> 
> On Mon, 26 Jul 1999, Daniel Friedman wrote:
> 
> > What are some general or specific reasons to diagnose why NS might
> > go backwards in time?  As, for example, when the simulator gives a
> > message like this one:
> > 
> > ns: scheduler going backwards in time from 324.400754 to 324.349757.
> > 
> > Thoughts?
> > 
> > Thanks,
> > --daniel
> > 
> > ---------------------------------------------------------------------------
> >  Daniel Friedman    danielf@isr.umd.edu    http://www.isr.umd.edu/~danielf
> > 
> > 
> 
>