[ns] how to use schedule(target_, pkt, delay) instead of send(pkt, 0)

[Muth S]

Hi
   
  To send a packet every agent uses a send method. 
  send(pkt,0)
  There is another option available in which instead of send one can use 
Scheduler::instance.schedule(target_,pkt,delay)
   
  can any one tell me how to use scheduler() instead or send ()... do i need to 
declare things or just replace the functions only
   
  waiting for ur reply
  thanx in advance

                
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