Re: Centralized Multicast error

[Polly Huang <huang@catarina.usc.edu>]

Paula,
The manual isn't as updated as the nsDoc documentation. This is
probably why your script isn't working quite right.

On Mon, 30 Nov 1998, Paula Rincon Mancheno wrote:

> 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)}

This should be:
$mrthandle set_c_rp $n(26) $(34)

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

This should be:
$mrthandle set_c_bsr $n(26):0 $n(34):1

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

1. $n26 should be $n(26)
2. you need to create links to connect your 71 nodes somehow for the
get_c_rp and get_c_bsr function to work, so does compute-mroutes.

hope this helps
-Polly

> 	$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
> -- 
>           
> Mailto:Paula.Rincon_Mancheno@inrialpes.fr  Tel +33 (0) 4 76 61 52 16    
> * INRIA Rhone-Alpes FRANCE - Projet SIRAC                 (fax 52 52) 
> * http://sirac.inrialpes.fr/
>