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Re: [ns] CBR Agent usage versus CBR traffic



Can you give us the entire script ...It seems your code has some reset etc

Debo

On Mon, 14 May 2001 abadrah@tachys.com wrote:

> 
> Hi,
> 
> My question concerns the use of Agent/CBR versus Application/Traffic/CBR
> 
> When I use the bellow source code (Ex1 ) I have the following message :
> "using backward compatible Agent/CBR; use Application/Traffic/CBR instead "
> 
> ################# Ex1 source code ######################
> 
> set cbr0 [new Agent/CBR]
> $ns attach-agent $n0 $cbr0
> $cbr0 set packetSize_ 500
> $cbr0 set interval_ 0.01
> 
> #Create a Null agent (a traffic sink) and attach it to node n3
> set null0 [new Agent/Null]
> $ns attach-agent $n3 $null0
> 
> #Connect the traffic sources with the traffic sink
> $ns connect $cbr0 $null0  
> ################# End Ex1 source code ######################
> 
> But if I use the adviced "Application/Traffic/CBR" as in Ex2 source code I
> have the following error message and nothing start after this  : 
> 
>     (_o82 cmd line 1)
>     invoked from within
> "_o82 cmd reset"
>     invoked from within
> "catch "$self cmd $args" ret"
>     (procedure "_o82" line 2)
>     (SplitObject unknown line 2)
>     invoked from within
> "$a reset"
>     (procedure "_o10" line 4)
>     (Node reset line 4)
>     invoked from within
> "$Node_($nn) reset"
>     (procedure "_o3" line 10)
>     (Simulator run line 10)
>     invoked from within
> "$ns run"
>     (file "aa.tcl" line 127)
> 
> 
> ################# Ex2 source code ######################
> 
> set cbr0 [new Application/Traffic/CBR]
> $ns attach-agent $n0 $cbr0
> $cbr0 set packetSize_ 500
> $cbr0 set interval_ 0.01
> 
> #Create a Null agent (a traffic sink) and attach it to node n3
> set null0 [new Agent/Null]
> $ns attach-agent $n3 $null0
> 
> #Connect the traffic sources with the traffic sink
> $ns connect $cbr0 $null0  
> ################# End Ex2 source code ######################
> 
> How can I avoid the warning message and use the Application/Traffic/CBR ?
> Am I obliged to use an Udp agent in order to use the
> Application/Traffic/CBR  ? 
> 
> Thanks.
> 
> 
> 
> --------------------------------
> Ahmad BADRAH
> 
> Performance Modeling Architect
> e-mail : Ahmad.Badrah@tachys.com
> phone  : +33 (0)4 92 94 48 18
> Tachys Technologies
> Les Algorithmes, ABS BP 29
> 06901 Sophia-Antipolis Cedex
> 
> http://www.tachys.com
> 
> 
>