# postproc.awk
# usage: awk -f postproc.awk tracefile.tr

BEGIN { tcp12 = udp12 = tcpq = udp = 0 }

# packets on link 1-2
$1=="r" && $3=="1" && $4=="2" && $5=="tcp" { tcp12 += $6 } 
$1=="r" && $3=="1" && $4=="2" && $5=="cbr" { udp12 += $6 } 

# tcp/udp packets on all links
$1=="r" && $5=="tcp" { tcp += $6 } 
$1=="r" && $5=="cbr" { udp += $6 } 

END {
      print "TCP packets on link 1->2: " tcp12 " bytes;"; 
      print "UDP packets on link 1->2: " udp12 " bytes." 

      all = tcp + udp;
      print "Total # of TCP packets: " tcp " bytes, i.e., " tcp*100/all "%;"; 
      print "Total # of UDP packets: " udp " bytes, i.e., " udp*100/all "%." 

}