#calulate total time of each connection
#connections are started every I secs
BEGIN { I=3000; syn_time=0; prev=0; k=0; total=0; segs=0} 
	$2 - prev > I/2 { 
		if (k>0)
			#print prev - syn_time;
			total+= prev - syn_time;
		syn_time=$2; 
		k++
	}
	$1=="r" && $5=="tcp" {segs++}
	{prev = $2}
#	{print "prev now" prev }
#END  {print prev-syn_time}
END  {total+= prev - syn_time; if (k>0) print total/k "\t" segs/k}