Hi
I wonder if anyone can help with a lwip problem on a Xilinx ML506
Virtex 5 evaluation board with a microblaze processor and Xilinx Lwip
2.0
We are using the raw packet implemetation with a single TCPIP socket
link between a windows PC and the development board. I have based my
code on the Xilinx web server examples.
Our link connects and runs for a while, then fails.
Investigating with wireshark shows that on occasion lwip fails to ack
a packet or two causing the PC to perform a fast re-transmission, lwip
transmits an ack and the link re covers, except that our window size
has reduced by the size of the re-transmitted packet. It is this
'window buffer leak' that causes the link to fail eventually.
Is there anything I am missing, or that I need to do to clear out
duplicate packets?
Many thanks in advance for your help
Dave
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