NS2 , AWK script for finding the packet delivery ratio

Packet delivery ratio : the ratio of the number of delivered data packet to the destination. This illustrates the level of delivered data to the destination.

∑ Number of packet receive / ∑ Number of packet send

The greater value of packet delivery ratio means the better performance of the protocol.

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# Initialization settings
BEGIN {

        sendLine = 0;
        recvLine = 0;
        fowardLine = 0;
        if(mseq==0)
mseq=10000;
for(i=0;i<mseq;i++){
rseq[i]=-1;
sseq[i]=-1;
}
}
# Applications received packet
$0 ~/^s.* AGT/ {
# if(sseq[$6]==-1){
        sendLine ++ ;
#       sseq[$6]=$6;
# }
}

# Applications to send packets
$0 ~/^r.* AGT/{
# if(rreq[$6]==-1){
        recvLine ++ ;
#         sseq[$6]=$6;
#        }

}


# Routing procedures to forward the packet
$0 ~/^f.* RTR/ {

        fowardLine ++ ;

}

# Final output
END {
        printf "cbr s:%d r:%d, r/s Ratio:%.4f, f:%d \n", sendLine, recvLine, (recvLine/sendLine),fowardLine;

}



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