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Re: (no subject)



> From: Peng Wei <[email protected]>
> Date: Sat, 20 Jun 1998 08:33:12 +0800

> I'm a new user of ns and I intend to use ns to simulate a network with
> multicast traffic and unicast traffic simultaneously. The network should
> be composed by some nodes with multicast capability and other nodes
> without. Moreover, some nodes are mobile. Say, its link through which it
> attach to the network may be changed over time. My questions are :

In ns, a multicast capable node can also forward unicast traffic;
however, it is not currently possible to construct a topology with
a mix of unicast-only and multicast-capable nodes in the default case.
It is however possible to write very simple routines to construct
your own topology in this situation.  The documentation, available
at http://www-mash.cs.berkeley.edu/ns/nsDoc.ps.gz, explains how the
different types of nodes are constructed---you could use that as a
base for creating your own variations on the topology.  (Check out the
notes on the node's enable-mcast method, described in the chapter on 
nodes in the documentation;  I think it does some of what you want).

We, on the VINT project, are not currently adding mobility to ns.  I
believe that there are other people working on this, though I do not
recollect offhand who these people are.

>    Does ns support this kind of simulation ? If it is, how to creat the
> nodes with different capabilities ?


Kannan

--
[email protected]
http://www.isi.edu/~kannan