Centralized Multicast error

[Paula Rincon Mancheno <Paula.Rincon_Mancheno@inrialpes.fr>]

Hi, I am trying to make a simulation using the Centralized Multicast as
I have read in the manual:
	set ns [new Simulator]
	Simulator set EnableMcast_ 1
	set group [Node allocaddr]
	Simulator set NumberInterfaces_ 1
	
	Node set multiPath_ 1
	for {set i 0} {$i < 71} {incr i} {
    		set n($i) [$ns node]
    		$n($i) shape "other"
  
 	 }

	#Start multicast configuration
	set mproto CtrMcast 
	set mrthandle [$ns mrtproto $mproto {}]


	$mrthandle set_c_rp {$n(26) $n(34)}
	$mrthandle set_c_bsr {$n26:0 $n(34):1}

	$mrthandle get_c_rp  $n26 $group
	$mrthandle get_c_bsr $n26

	$mrthandle compute-mroutes

but I have obtained this error :

	Flag variable Simulator::EnableMcast_ discontinued.
         Use multicast methods as:
                 % set ns [new Simulator -multicast on]
                 % $ns multicast
	invalid command name "$n(26)"
	while executing
	"$node getArbiter"
    	(procedure "_o1972" line 11)
    	(CtrMcastComp set_c_rp line 11)
    	invoked from within
	"$mrthandle set_c_rp { $n(26) $n(34)}"
    	(file "exCBT.tcl" line 115)


Could anybody help me?
Thanks
-- 
          
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