[ns] Re: Regarding

[Polly Huang <huang@tik.ee.ethz.ch>]

Anirban,

Say initially, you set the c_rp to $n2 like:
set mproto CtrMcast
set mrthandle [$ns mrtproto $mproto {}]
$mrthandle set_c_rp $n2 

To change the core in the middle of a simulation, you need to reassign
c_rp, and then re-compute rpset adn mcast routes like this:
$ns at 0.7  "$mrthandle set_c_rp $n0"
$ns at 0.71 "[$mrthandle set ctrrpcomp] compute-rpset"
$ns at 0.72 "$mrthandle compute-mroutes"

hope this helps,
-Polly

On Sun, 27 Feb 2000, Anirban Chakrabarti wrote:

> Hi,
> I am a graduate student in Iowa State University. I am trying to add core
> migration to multicast trees. But, when I am changing the core the sender
> is still sending to the old core. Can you suggest me something? Any
> insight will be of enormous help.
> Thanks
> Anirban
>