[lwip-users] LWIP Timeout(?) 2 second to ACKnowledge the end of the transmission. log file TC_IP trace2.pcap

[Damon, Antoine]

Sir

 

 

I’m developing an embedded project under VDK (RT OS), this project uses the IPStack LwIP and an embedded web server (GO HEAD). On the host, I updated windows (version 5 XP Service Pack3) and the navigators Mozilla and Opera (latest releases). Now I could see a timeout closed 2 seconds between the sequences /12 & 13/23 & 24/36 & 37 (see log file).

 

 

The sequence is

 

Host to server                                                  HTTP /GET  data_polyline.xml

Server to host                                                  http > dyna-lm [ACK] seq=1 Ack=449 Win=8192 len=0

Server to host                                                  [TCP SEGMENT of reassembled PDU]    

Server to host                                                  [TCP SEGMENT of reassembled PDU]

Host to server                                                  dyna-lm > http [ACK] Seq=834 Ack=449 Win=64702 len0

2 seconds after

Server to host                                                  http > dyna-lm[FIN,ACK] Seq = 834 Ack 449 Win=8192 len 0

 

I attached the log file

 

Have you got an idea about this timeout(?).

 

Best Regards

 

 

 

Antoine Damon

DSP Software Designer

Tel: +33.2.4360.0044

Fax: +33.2.4360.2870

FAURE HERMAN

 

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TCP_IP_trace2.pcap
Description: TCP_IP_trace2.pcap