1*05b00f60SXin Li$6 ~ /^ack/ && $5 !~ /[SFR]/ { 2*05b00f60SXin Li # given a tcpdump ftp trace, output one line for each ack 3*05b00f60SXin Li # in the form 4*05b00f60SXin Li # <ack time> <seq no> 5*05b00f60SXin Li # where <ack time> is the time packet was acked (in seconds with 6*05b00f60SXin Li # zero at time of first packet) and <seq no> is the tcp sequence 7*05b00f60SXin Li # number of the ack divided by 1024 (i.e., Kbytes acked). 8*05b00f60SXin Li # 9*05b00f60SXin Li # convert time to seconds 10*05b00f60SXin Li n = split ($1,t,":") 11*05b00f60SXin Li tim = t[1]*3600 + t[2]*60 + t[3] 12*05b00f60SXin Li if (! tzero) { 13*05b00f60SXin Li tzero = tim 14*05b00f60SXin Li OFS = "\t" 15*05b00f60SXin Li } 16*05b00f60SXin Li # get packet sequence number 17*05b00f60SXin Li printf "%7.2f\t%g\n", tim-tzero, $7/1024 18*05b00f60SXin Li } 19