I was simulated my tcl script in ns2.30 using new_trace format under linux
I have out.tr then I want to calculate 3 performance metric :
paket delivery ratio, paket overhead and end to end delay.
    I use my awk script to get desire value but I don’t know that was not 
success.
I get this value in my parsing result
send = 8871.00
  recv = 0.00
  routingpkts = 682.00
  PDF = 0.00
  NRL = inf
  Average e-e delay(ms)= nan
  No. of dropped data (packets) = 322
      No. of dropped data (bytes)   = 171304
    I am attach .tr file in my mail, please help me what’s wrong..?
My awk script was wrong? or
can you give me correct calculation with my out2.tr in my attachment ? 
  What meaning of :  NRL = inf
                  Average e-e delay(ms)= nan
  
       
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