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[ns] Problem with multicast and DV and question about multicast protocols



I have a problem and a question:

The problem:
I am trying to simulate multicast scenarios, with networks dynamics (links
going up and down). I use DV protocol ($ns rtproto DV) to recompute route
information when a link goes down. But when I simulate I get some errors,
all with something referring to a "Node_(-1)". If I remove the line "$ns
rtproto DV" I do not get the error. Are DV and multicast incompatible or am
I doing something wrong?

The question:
Which multicast protocols can be simulated in ns? I know these ones:
CtrlMcast (similar to PIM-SM), DV (PIM-DM or DVMRP) and ST/BST (similar to
CBT?). Are there any more?

Thank-you in advance.

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Manuel P�rez de Castro ([email protected])
                                    ([email protected])
ETSI Telecomunicaciones- UPV (Valencia)
Espa�a
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