Re: random??

[Haobo Yu <haoboy@isi.edu>]

it's a possibly deprecated command. You should use random variable to
generate random numbers and that's the recommended way. See the related
chapter in ns manual. 

ns-random is in misc.cc. If you want to find a command which is not
documented, the best way is probably a grep.


On Thu, 17 Feb 2000, CWen56 wrote:

> Sir
>     Really appreciate your help, but I have a question about that I didn't
> find any explain in NS-Note & Docu then where can I find that description
> about that ns-random. In my simualtion I have no random variables so I have no
> way to attach rng on it.  I don't know what the RNG is made up while start up,
> is it deterministic or heuristic?
> thanks your help
> 
> regards
> Robert
> 
> Haobo Yu wrote:
> 
> > You can set different random seeds when start up. Try:
> >
> > ns-random 0
> >
> > Or you can new RNGs yourself, connect these RNGs to your random
> > variables, and seed the RNGs differently using its "seed" otcl binding.
> > See rng.cc
> >
> > - Haobo
> >
> > On Thu, 17 Feb 2000, CWen56 wrote:
> >
> > > Hi!  Gentlemen !
> > >     I have a topology of  a TCP/FTP link with fixed error rate. But how
> > > could I do to get different results while doing the same simulation?
> > > because I always get the same packet losses < even the same sequence
> > > number>. I can't understand where should I use random number generator.
> > >     May someone give me a hint? I also got confised about set_seed(). Is
> > > it used in c++ or tcl?
> > >
> > > regards
> > > Robert
> > >
> > >
> 
>