#!/usr/bin/perl -w
use strict;
# 15:20:56.789680 P 0:48:54:5c:4d:f1 0:0:0:0:0:1 ip 1514: wsrppp15.wsr.ac.at.1605 > 195.202.170.227.smtp: P 420284195:420285643(1448) ack 3689574287 win 32120 <nop,nop,timestamp 2363951 3391664> (DF)
my %octets;

while (<>) {
    if (/([\d.:]+) ([\w:]+) ([\w:]+) ip (\d+): ([-\w.]+)\.(\w+) > ([-\w.]+)\.(\w+):/) {
	# print;
	# print "-> $1 $2 $3 $4 $5 $6 $7 $8\n";
	my $octets = $4;
	my $sip = $5;
	my $sport = $6;
	my $dip = $7;
	my $dport = $8;
	# print "-> proto = $proto\n";
	$octets{"$sip - $dip"} += $octets;
    }
}
for my $i (sort { $octets{$a} <=> $octets{$b} } keys %octets) {
    printf "%10d %s\n", $octets{$i}, $i;
}

#vim:sw=4