I guess it depends what speed you are trying to get with which packet
sizes. With 1500 MTU, it's very hard to get 1Gbps with max window
size of 65535. It may be possible with larger MTUs. However, linux
and windows both negotiate window scaling to increase throughput.
Rishi
On Oct 15, 2008, at 10:52 AM, Gary Olson wrote:
Hi,
I asked the Xilinx Forum about increasing packets above 9K and
was told that the TEMAC will not work above 9K. I think the TEMAC
Will stop working at 8192 since I have tried testing my software
above that number and cannot get it to work.
How would I turn off CRC checking in LWIP. I would like to see if
this will increase thruput. I have right now set up checksum offload
To the TEMAC. It helped about 20%.
Thank you Bill and Rishi for your input.
Rishi,
I don’t understand the changing Window solution you mentioned. And
even though I looked at the code it seems very complicated to
change my tcp code.
I am using Jumbo packets up to 8080 bytes and the Temac stops
working at 8192 bytes. The Temac can’t expand receiving data very
much on the Xilinx Board.
Thank You,
Gary Olson
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