- wilmer@nasi:~/tcpwtf$ tcptrace -l nasi.dump
- 1 arg remaining, starting with 'nasi.dump'
- Ostermann's tcptrace -- version 6.6.7 -- Thu Nov 4, 2004
- 93175 packets seen, 93175 TCP packets traced
- elapsed wallclock time: 0:00:00.407887, 228433 pkts/sec analyzed
- trace file elapsed time: 0:00:02.446254
- TCP connection info:
- 1 TCP connection traced:
- TCP connection 1:
- host a: nasi.dublin.gaast.net:43842
- host b: free.hands.com:80
- complete conn: yes
- first packet: Wed Sep 13 10:31:09.054492 2017
- last packet: Wed Sep 13 10:31:11.500746 2017
- elapsed time: 0:00:02.446254
- total packets: 93175
- filename: nasi.dump
- a->b: b->a:
- total packets: 10744 total packets: 82431
- ack pkts sent: 10743 ack pkts sent: 82431
- pure acks sent: 10741 pure acks sent: 1
- sack pkts sent: 109 sack pkts sent: 0
- dsack pkts sent: 0 dsack pkts sent: 0
- max sack blks/ack: 1 max sack blks/ack: 0
- unique bytes sent: 185 unique bytes sent: 116058283
- actual data pkts: 1 actual data pkts: 82428
- actual data bytes: 185 actual data bytes: 116058283
- rexmt data pkts: 0 rexmt data pkts: 0
- rexmt data bytes: 0 rexmt data bytes: 0
- zwnd probe pkts: 0 zwnd probe pkts: 0
- zwnd probe bytes: 0 zwnd probe bytes: 0
- outoforder pkts: 0 outoforder pkts: 95
- pushed data pkts: 1 pushed data pkts: 114
- SYN/FIN pkts sent: 1/1 SYN/FIN pkts sent: 1/1
- req 1323 ws/ts: Y/Y req 1323 ws/ts: Y/Y
- adv wind scale: 7 adv wind scale: 7
- req sack: Y req sack: Y
- sacks sent: 109 sacks sent: 0
- urgent data pkts: 0 pkts urgent data pkts: 0 pkts
- urgent data bytes: 0 bytes urgent data bytes: 0 bytes
- mss requested: 1440 bytes mss requested: 1420 bytes
- max segm size: 185 bytes max segm size: 1408 bytes
- min segm size: 185 bytes min segm size: 1067 bytes
- avg segm size: 184 bytes avg segm size: 1407 bytes
- max win adv: 3145728 bytes max win adv: 29312 bytes
- min win adv: 28800 bytes min win adv: 29312 bytes
- zero win adv: 0 times zero win adv: 0 times
- avg win adv: 2903975 bytes avg win adv: 29312 bytes
- initial window: 185 bytes initial window: 14080 bytes
- initial window: 1 pkts initial window: 10 pkts
- ttl stream length: 185 bytes ttl stream length: 116638379 bytes
- missed data: 0 bytes missed data: 580096 bytes
- truncated data: 0 bytes truncated data: 0 bytes
- truncated packets: 0 pkts truncated packets: 0 pkts
- data xmit time: 0.000 secs data xmit time: 2.435 secs
- idletime max: 11.9 ms idletime max: 12.4 ms
- throughput: 76 Bps throughput: 47443268 Bps
- wilmer@nasi:~/tcpwtf$ tcptrace -l ruby.dump
- 1 arg remaining, starting with 'ruby.dump'
- Ostermann's tcptrace -- version 6.6.7 -- Thu Nov 4, 2004
- 121241 packets seen, 121237 TCP packets traced
- elapsed wallclock time: 0:00:00.465948, 260202 pkts/sec analyzed
- trace file elapsed time: 0:00:08.789509
- TCP connection info:
- 1 TCP connection traced:
- TCP connection 1:
- host a: ruby.dublin.gaast.net:46440
- host b: free.hands.com:80
- complete conn: yes
- first packet: Wed Sep 13 10:30:52.123367 2017
- last packet: Wed Sep 13 10:31:00.912876 2017
- elapsed time: 0:00:08.789509
- total packets: 121237
- filename: ruby.dump
- a->b: b->a:
- total packets: 36703 total packets: 84534
- ack pkts sent: 36702 ack pkts sent: 84534
- pure acks sent: 36700 pure acks sent: 1
- Note the receiver sending many more (pure) acks
- sack pkts sent: 1348 sack pkts sent: 0
- dsack pkts sent: 10 dsack pkts sent: 0
- max sack blks/ack: 1 max sack blks/ack: 0
- unique bytes sent: 214 unique bytes sent: 116638379
- actual data pkts: 1 actual data pkts: 84531
- actual data bytes: 214 actual data bytes: 119019307
- rexmt data pkts: 0 rexmt data pkts: 1691
- rexmt data bytes: 0 rexmt data bytes: 2380928
- and yay there we go, >2MB of rexmit coming back to it. :-(
- zwnd probe pkts: 0 zwnd probe pkts: 0
- zwnd probe bytes: 0 zwnd probe bytes: 0
- outoforder pkts: 0 outoforder pkts: 0
- pushed data pkts: 1 pushed data pkts: 478
- SYN/FIN pkts sent: 1/1 SYN/FIN pkts sent: 1/1
- req 1323 ws/ts: Y/Y req 1323 ws/ts: Y/Y
- adv wind scale: 7 adv wind scale: 7
- req sack: Y req sack: Y
- sacks sent: 1348 sacks sent: 0
- urgent data pkts: 0 pkts urgent data pkts: 0 pkts
- urgent data bytes: 0 bytes urgent data bytes: 0 bytes
- mss requested: 1440 bytes mss requested: 1420 bytes
- max segm size: 214 bytes max segm size: 1408 bytes
- min segm size: 214 bytes min segm size: 1067 bytes
- avg segm size: 213 bytes avg segm size: 1407 bytes
- max win adv: 406016 bytes max win adv: 29312 bytes
- min win adv: 28800 bytes min win adv: 29312 bytes
- zero win adv: 0 times zero win adv: 0 times
- avg win adv: 402805 bytes avg win adv: 29312 bytes
- initial window: 214 bytes initial window: 9856 bytes
- initial window: 1 pkts initial window: 7 pkts
- ttl stream length: 214 bytes ttl stream length: 116638379 bytes
- missed data: 0 bytes missed data: 0 bytes
- truncated data: 0 bytes truncated data: 0 bytes
- truncated packets: 0 pkts truncated packets: 0 pkts
- data xmit time: 0.000 secs data xmit time: 8.779 secs
- idletime max: 214.2 ms idletime max: 209.8 ms
- throughput: 24 Bps throughput: 13270181 Bps