accessing real-server directly:

tcptrace -l tcptrace.cap

1 arg remaining, starting with 'tcptrace.cap'

Ostermann's tcptrace -- version 6.6.1 -- Wed Nov 19, 2003

38 packets seen, 38 TCP packets traced

elapsed wallclock time: 0:00:00.005061, 7508 pkts/sec analyzed

trace file elapsed time: 0:00:00.096704

TCP connection info:

1 TCP connection traced:

TCP connection 1:

host a: lvps92-51-165-33.dedicated.hosteurope.de:38199

host b: 81.16.155.151:3080

complete conn: yes

first packet: Wed Oct 28 10:36:48.799641 2009

last packet: Wed Oct 28 10:36:48.896345 2009

elapsed time: 0:00:00.096704

total packets: 38

filename: tcptrace.cap

a->b: b->a:

total packets: 19 total packets: 19

ack pkts sent: 18 ack pkts sent: 19

pure acks sent: 16 pure acks sent: 2

sack pkts sent: 0 sack pkts sent: 0

dsack pkts sent: 0 dsack pkts sent: 0

max sack blks/ack: 0 max sack blks/ack: 0

unique bytes sent: 111 unique bytes sent: 22109

actual data pkts: 1 actual data pkts: 16

actual data bytes: 111 actual data bytes: 22109

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: 0

pushed data pkts: 1 pushed data pkts: 1

SYN/FIN pkts sent: 1/1 SYN/FIN pkts sent: 1/1

req 1323 ws/ts: Y/Y req 1323 ws/ts: Y/YGOOD!

adv wind scale: 2 adv wind scale: 7

req sack: Y req sack: Y

sacks sent: 0 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: 1460 bytes mss requested: 1460 bytes

max segm size: 111 bytes max segm size: 1448 bytes

min segm size: 111 bytes min segm size: 389 bytes

avg segm size: 110 bytes avg segm size: 1381 bytes

max win adv: 49280 bytes max win adv: 5888 bytes

min win adv: 5840 bytes min win adv: 5888 bytes

zero win adv: 0 times zero win adv: 0 times

avg win adv: 27560 bytes avg win adv: 5888 bytes

initial window: 111 bytes initial window: 1448 bytes

initial window: 1 pkts initial window: 1 pkts

ttl stream length: 111 bytes ttl stream length: 22109 bytes

missed data: 0 bytes missed data: 0 bytes

truncated data: 83 bytes truncated data: 21661 bytes

truncated packets: 1 pkts truncated packets: 16 pkts

data xmit time: 0.000 secs data xmit time: 0.038 secs

idletime max: 19.6 ms idletime max: 19.7 ms

throughput: 1148 Bps throughput: 228625 Bps

accessing via SI-350 virtual server:

tcptrace -l tcptrace2.cap

1 arg remaining, starting with 'tcptrace2.cap'

Ostermann's tcptrace -- version 6.6.1 -- Wed Nov 19, 2003

40 packets seen, 40 TCP packets traced

elapsed wallclock time: 0:00:00.046070, 868 pkts/sec analyzed

trace file elapsed time: 0:00:00.409803

TCP connection info:

1 TCP connection traced:

TCP connection 1:

host a: lvps92-51-165-33.dedicated.hosteurope.de:38211

host b: mail.123people.com:80

complete conn: yes

first packet: Wed Oct 28 10:38:31.259739 2009

last packet: Wed Oct 28 10:38:31.669542 2009

elapsed time: 0:00:00.409803

total packets: 40

filename: tcptrace2.cap

a->b: b->a:

total packets: 20 total packets: 20

ack pkts sent: 19 ack pkts sent: 20

pure acks sent: 17 pure acks sent: 2

sack pkts sent: 0 sack pkts sent: 0

dsack pkts sent: 0 dsack pkts sent: 0

max sack blks/ack: 0 max sack blks/ack: 0

unique bytes sent: 92 unique bytes sent: 23310

actual data pkts: 1 actual data pkts: 17

actual data bytes: 92 actual data bytes: 23310

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: 0

pushed data pkts: 1 pushed data pkts: 3

SYN/FIN pkts sent: 1/1 SYN/FIN pkts sent: 1/1

req 1323 ws/ts: Y/Y req 1323 ws/ts: N/NBAD!

adv wind scale: 0 adv wind scale: 0

req sack: Y req sack: N

sacks sent: 0 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: 1460 bytes mss requested: 1460 bytes

max segm size: 92 bytes max segm size: 1460 bytes

min segm size: 92 bytes min segm size: 109 bytes

avg segm size: 91 bytes avg segm size: 1371 bytes

max win adv: 32767 bytes max win adv: 8000 bytes

min win adv: 5840 bytes min win adv: 5840 bytes

zero win adv: 0 times zero win adv: 0 times

avg win adv: 23180 bytes avg win adv: 5948 bytes

initial window: 92 bytes initial window: 1460 bytes

initial window: 1 pkts initial window: 1 pkts

ttl stream length: 92 bytes ttl stream length: 23310 bytes

missed data: 0 bytes missed data: 0 bytes

truncated data: 52 bytes truncated data: 22630 bytes

truncated packets: 1 pkts truncated packets: 17 pkts

data xmit time: 0.000 secs data xmit time: 0.159 secs

idletime max: 212.6 ms idletime max: 193.9 ms

throughput: 224 Bps throughput: 56881 Bps