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[ns] multiple links?

hi ns users,
I am basically trying to realize a DWDM links with  multiple path!
I tried  to use many simplex-links between 2 nodes, but it assigned only the last link!
Then  i was suggested to encapsulate the Class Link in ns-link.tcl.But i think OTcl
doesnt support encapsulation.

I would like to hear some technique ,that i could realize a DWDM  link!
eagerly waiting,
thanks
kishore

Kishore Kumar Sathyanandam wrote:

hi,
Im struck with the first part!
please check below,im need some fundamental ideas here

Haobo Yu wrote:

> > i had  gone through some of the sources.I understood that i can have only one link
> > between 2 nodes.
> > even if i try to encapsulate  many SimpleLinks between each node,as u said i have
> > problems in routing and packet forwarding.
> >
> > say
> > if i have 2 nodes with 2 Links.
> >
> > n0 ========== n1
> >
> > i can only attach a agent w.r.t sender node n0 (not with link1or link2) like
> > set cbr0 [new Agent/CBR]
> > $ns attach-agent $n(0) $cbr0
> > ................
> > .......
> >
> > so here i cannot differentiate w.r.t links.
>
> You don't need your agent to know about routing decisions, just like in
> real world, right?
>
> In ns, forwarding is decided by classifiers, and routes are computed by
> RouteLogic (in the unicast case). When you have DWDM links with multiple
> lightpaths you want to change the routing part so they will handle these
> links properly.

 I need to know how to implement a DWDM links with multiple path!
i need some suggestions to proceed to have a support in NS for the same!

> All the rest of your sims should be the same.
>
> - Haobo

thanks
kishore
--
________________________________________________________________________________
Kishore Kumar Sathyanandam
Trainee at CTIT
University Of Twente
Netherlands
email: [email protected]
  (or)
   [email protected]
________________________________________________________________________________

--
________________________________________________________________________________
Kishore Kumar Sathyanandam
Trainee at CTIT
University Of Twente
Netherlands
email: [email protected]
  (or)
   [email protected]
________________________________________________________________________________