Difference between Agent/UDP+Application/Traffic/CBR & Agent/CBR

["Bancherdvanich Terdsak" <terdsak@ust.hk>]

Hi,

 

I am new in NS-2. I would like to ask what is the difference between

 

i) set udp0 [new Agent/UDP]
   $ns attach-agent $n0 $udp0
   set cbr0 [new Application/Traffic/CBR]

   $cbr0 attach-agent $udp0

 

ii) set cbr0 [new Agent/CBR]

    $ns attach-agent $n0 $cbr0

 

Thank you

 

Terdsak