questions about the newmcast,

[xiao@ils.unc.edu]

 Hi,there:

    i was going to run the multicast sample pim5.tcl under the directory
/NS2/ns-allinone-2.1b5/ns-2.1b5/tcl/ex/newmcast( it is the ns-2.1b5).
then the following stuff came out:

warning: Flag variable Simulator::EnableMcast_ discontinued.
         Use multicast methods as:
                 % set ns [new Simulator -multicast on]
                 % $ns multicast
_o3: unable to dispatch method multi-link-of-interfaces
    while executing
"$ns multi-link-of-interfaces [list $n5 $n2 $n3 $n6] 1.5Mb 10ms DropTail"
    (file "pim5.tcl" line 49)
 
 any advice is highly appreciated!

Xiao