[ns] McastMonitor

[mike lui <jhc8459@yahoo.com>]

Hi
I''ve got a problem with class McastMonitor which I
don't know how to solve. my script is.
....
set mcastmonitor [$ns McastMonitor]
$mcastmonitor set period_ 0.01
$mcastmonitor trace-topo $n0 $groupAddr

but it has a error message like this

warning:using backward compatibility mode
ns: unable to dispatch method McastMonitor
      while executing
"ns McastMonitor"
     ("eval" body line 1)
      invoked from within
"eval ns $args"
      (procedure "ns" line 3)
       invoked from within
"ns McastMonitor"
      (file "mcast.tcl" line 113)

can anyone help me?

thanks

Mike Liu




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