[jbossws-users] [JBossWS] - Re: TCP/IP settings for Web Service Client?
Here is the TCPDump output when it is working correctly. There are many examples of
this:
Initial 3-way handshake
| SYN
| 18:01:30.769521 IP alpha.abc.com.58548 > 163.130.1.201.http: S
4126902008:4126902008(0) win 5840 <mss 1460,sackOK,timestamp 3028392681 0,nop,wscale
2>
| SYN-ACK
| 18:01:30.918689 IP 163.130.1.201.http > alpha.abc.com.58548: S 63388846:63388846(0)
ack 4126902009 win 8760 <mss 1460,eol>
| ACK
| 18:01:30.918721 IP alpha.abc.com.com.58548 > 163.130.1.201.http: . ack 1 win 5840
|
| POST - First half of message
| 18:01:30.919050 IP alpha.abc.com.58548 > 163.130.1.201.http: . 1:1461(1460) ack 1
win 5840
| Continuation - 2nd Half of Message with push flag
| 18:01:30.919074 IP alpha.abc.com > 163.130.1.201.http: P 1461:1779(318) ack 1 win
5840
|
| TCP level ACK
| 18:01:31.101948 IP 163.130.1.201.http > alpha.abc.com.58548: . ack 1779 win 64240
| ACK Resent????, (Final Flag set)
| 18:01:31.387309 IP 163.130.1.201.http > alpha.abc.com.58548: F 204:204(0) ack 1779
win 64240
| handshake... we got your ack.
| 18:01:31.387342 IP alpha.abc.com.58548 > 163.130.1.201.http: . ack 1 win 5840
|
|
| 202 Accepted - (Final Flag set)
| 18:01:34.428663 IP 163.130.1.201.http >alpha.abc.com.58548: FP 1:204(203) ack 1779
win 64240
| Got your 202
| 18:01:34.469118 IP alpha.abc.com.58548 > 163.130.1.201.http: . ack 205 win 6432
|
| Bye - Closing Connection
| 18:02:53.064082 IP alpha.abc.com.58548 > 163.130.1.201.http: F 1779:1779(0) ack 205
win 6432
| Bye - Ack connection closing.
| 18:02:53.211680 IP 113.130.1.201.http > alpha.abc.com.58548: . ack 1780 win 64240
Here is an example of one where the 2nd half of the message is delayed by 5 seconds:
Initial 3 way handshake... SYN was resent after 3 seconds.
| 18:00:44.099506 IP alpha.abc.com.58525 > 163.130.1.201.http: S
4080391120:4080391120(0) win 5840 <mss 1460,sackOK,timestamp 3028345997 0,nop,wscale
2>
| 18:00:47.099218 IP alpha.abc.com.58525 > 163.130.1.201.http: S
4080391120:4080391120(0) win 5840 <mss 1460,sackOK,timestamp 3028348998 0,nop,wscale
2>
| 18:00:47.286140 IP 163.130.1.201.http > alpha.abc.com.58525: S 4104645:4104645(0)
ack 4080391121 win 8760 <mss 1460,eol>
| 18:00:47.286188 IP alpha.abc.com.58525 > 163.130.1.201.http: . ack 1 win 5840
|
|
| POST - First Half of Message
| 18:00:47.286588 IP alpha.abc.com.58525 > 163.130.1.201.http: . 1:1461(1460) ack 1
win 5840
| 2nd Half of message
| 18:00:52.286766 IP alpha.abc.com.58525 > 163.130.1.201.http: FP 1461:1774(313) ack
1 win 5840
| 18:00:52.432341 IP 163.130.1.201.http > alpha.abc.com.58525: . ack 1775 win 63927
| 202 Accepted
| 18:00:52.433752 IP 163.130.1.201.http > alpha.abc.com.58525: P 1:204(203) ack 1775
win 63927
| Reset COnnection
| 18:00:52.433780 IP alpha.abc.com.58525 > 163.130.1.201.http: R
4080392895:4080392895(0) win 0
| AcK with /Final
| 18:00:52.434478 IP 163.130.1.201.http > alpha.abc.com.58525: F 204:204(0) ack 1775
win 63927
| Reset Connection
| 18:00:52.434501 IP alpha.abc.com.58525 > 163.130.1.201.http: R
4080392895:4080392895(0) win 0
NOTE: I am no TCP guru.... so I am not sure if my comments between the messages are
accurate. However, from the message body, I could tell which packets contianed the SOAP
messages.
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