Re: [lwip-users] lwip 1.3.2 waiting for ACK problem

[Peter Pavlov]

I recorded communication between Firefox and controller with embedded http  
server (based on lwip).
Controller IP 192.168.0.32
PC              IP 192.168.0.31
Log 1.pcap shows part of communication when picture was loading in  
Firefox. As you can see lwip sends 2 or 4 packets with image segments fast  
and then waits for ack. Why only 2 or 4 can be sent? According my  
investigation problem relates to tcp_output(struct tcp_pcb *pcb) in  
tcp_out.c   It would be great to play with number of segments to send  
before moment when ack is required.

Peter Pavlov

1.pcap
Description: Binary data

lwipopts.h
Description: Binary data