[ns] AGT new trace file

[El hadi Cherkaoui]

HI,
I'm using Marco Fiore's awk code 
(http://www.tlc-networks.polito.it/fiore/) to compute the throughput of 
data service. In the code I found that the 
author use AGT (Agent Trace level) to filter the trace file to get how 
many data bytes were receieved at the destination node. I wonder why we 
use AGT level, not MAC level to compute.

Who did use this code can tell me the precision of this one.

Thank  you.