Hi Bill,
My connection is never idle, i.e. the echo client spits packets like crazy to
the server, then it die, and I need to reconnect.
But, I did'nt test if the connections stays alive when Idle, but I shure will
take a look at what you said;
Thanks for the reply,
Francois
----- Original Message -----
From: Bill Auerbach
To: 'Mailing list for lwIP users'
Sent: Monday, September 28, 2009 10:54 AM
Subject: RE: [lwip-users] Connection closes with Echoraw demo
If the connection is idle, I think you'll need to enable keepalives. I don't
think lwIP is causing this since I have devices with TCP connections open all
day (and they are mostly idle).
Bill
From: [email protected]
[mailto:[email protected]] On Behalf Of
Francois Bouchard
Sent: Monday, September 28, 2009 10:28 AM
To: [email protected]
Subject: [lwip-users] Connection closes with Echoraw demo
HI all,
The server side (embedded) runs the Echoraw demo, which implements a TCP Echo
Server. On the Client Side, my PC an Echo client runs and continuously sends
packest, and measure the Round Trip Time. Client sends Another message as soon
as it receive the echo of the previous one.
That runs fine for a while, but after few time (mostly random I would say,
although it can run for a few hours) the TCP connection terminates by itself !
I think server does'nt have the time to send ACK. Should I pause client apps
once in a while to let the server send acks?
Attached is the wireshark file when the TCP connection stops.
regards,
FB
------------------------------------------------------------------------------
_______________________________________________
lwip-users mailing list
[email protected]
http://lists.nongnu.org/mailman/listinfo/lwip-users
_______________________________________________
lwip-users mailing list
[email protected]
http://lists.nongnu.org/mailman/listinfo/lwip-users
