Re: Antw: Re: [lwip-users] TCP retransmissions and some general questions

[Kieran Mansley]

On Wed, 2007-06-20 at 13:06 +0200, Matthias Weisser wrote:
> >>> Kieran Mansley <address@hidden> schrieb am 20.06.2007 um 12:14:
> > Were there any ACKs from the other side between the sending of the
> > packet and its retransmission?  If so, it could be fast retransmission
> 
> No. There where no ACKs from the PC side.
> BTW:
> Its a simple echo server.
> 
> > and not a problem.  If not, it does seem a bit early.  Perhaps you could
> > send a wireshark/ethereal capture file to illustrate the problem?
> 
> Attached to this mail you find a pcap file. 210 is the PC (echo
> client) and 34 is the lwIP device running the echo server on port
> 6666.

Hmm, I'd agree with you that it looks like something is wrong.  My first
guess would be something to do with how the TCP timers are being called
in your port, as it is that that controls the timing of retransmissions.

Kieran