Good morning and a good start in the week LWIP users :) Kieran suggestion is true. The other ends delayed ACK timer should time out and send a ACK so there shouldn't be a retransmission. But this is not happening. My suggestion is: - When i set the master fast like i said before 1ms it also send the ack for the response very fast so a retransmission is not happening. - When i set the master slow the ack of the master comes to late, so lwip makes retransmission.
So when i set the TCP_TMR_INTERVAl very high like "7200000" the retransmission happens but only a few times in a big interval. I guess in this case the timer is just used once in that big interval My Questions are: Would this crash the system in future if the TCP_TMR_INTERVAl is set so high? What would happen if i dont use the tcpip_tcp_timer in a longtme runing system? I observed if i dont use the timer that i dont get a retransmission anymore obviously the retransmission function is not called. Regards Fred -- View this message in context: http://old.nabble.com/Retransmission-behaviour--tp34077302p34100532.html Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
