Re: [ns] How to model aggregate traffic

[Andrea Josi <mr_josi@yahoo.it>]

Hi all,
thanks for replying !
Anyway, let me explain my problem.
The point is: how many nodes should a topology be of,
for being a realistic model of an internetwork of
several AS?
I believe that the order of magntiude is about 1000
and 10000; assuming 1000 as a reasonable number, and
assuming that NS can handle simulations with such a
number of nodes, the problem is that i don`t have much
time + disk memory (working under AFS...) to run such
simulations: this is the reason why i would like to
use no more than 100 nodes !
Moreover, using multiple traffic sources on the same
node would bring the same problems.
Any hints ?

Thanks a lot

P.S. running a simulation with 100 nodes and
multiplying the results for 10 or 100 could be a
solution ? eh eh ....

 --- vanitcha <vanitcha@usc.edu> ha scritto: > Another
suggestion is that you have 100
> Transport-layer (TCP or UDP)
> objects on a single source node. Each TCP object
> generates Pareto traffic.
> 
> Noparut
> 
> On Mon, 20 Aug 2001, kunchanl wrote:
> 
> >won't it be easier you have one node for each
> pareto source
> >and then have them all merge to the same link?
> >you might want to take a look at
> ~ns/tcl/ex/web-traffic.tcl
> >as an example.
> >
> >
> >Kun-chan Lan
> >
> >On Mon, 20 Aug 2001, [iso-8859-1] Andrea Josi
> wrote:
> >
> >> Hi,
> >> 
> >> i need an advice on how to model a set of
> sources, for
> >> example, 100 Pareto traffic sources: i would like
> to
> >> use a single NS node and a single traffic source,
> but
> >> in this case, how should i model the traffic
> resulting
> >> from the overlapping of my sources ?
> >> is it correct to use a single Pareto source ?
> what
> >> value should i set for its parameters ?
> >> 
> >> Thanks in advance.
> >> 
> >>
>
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> 
>  

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