Yes, We are getting this problem repeatedly.
Kieran Mansley wrote: > > On Wed, 2010-11-24 at 07:08 -0800, deepaknaik wrote: >> Hello all, >> >> I am using LWIP 1.3.1 version which is ported on my board. I have a web >> page >> in my flash which is more then 40KByte. I have connected the board with >> the >> PC using Cross cable to access the webpage from board continously. But >> inbetween PC stop accessing the web page from board. I have captured the >> transaction between PC and my board using Ethereal. When I go through the >> capturing details, PC sends TCP window update request to my board. And >> after >> some transaction I am getting "TCP DUP ACK" and transaction stops. > > It looks like two packets from the lwIP end have been dropped. lwIP > should wait a little while and then retransmit them but either it > doesn't or they also get dropped. My guess would be that the lwIP > timers aren't getting called correctly as the TCP retransmission code in > lwIP is based around these timers. Alternatively there is some problem > like lwIP has run out of packet buffers because they haven't been freed > properly. Is this problem repeatable? Is it always the same? > > Kieran > > > _______________________________________________ > lwip-users mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/lwip-users > > -- View this message in context: http://old.nabble.com/TCP-window-update-and-TCP-DUP-ACK-tp30297629p30308899.html Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
