Bill
Which version of lwIP are you using? I think there has been a change in
CVS recently that fits your problem (remote mss not used for sending).
Could you try to use the v1.3.0 release candidate?
Simon
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Von:
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Im Auftrag von Bill Auerbach
Gesendet: Donnerstag, 31. Januar 2008 16:54
An: 'Mailing list for lwIP users'
Betreff: [lwip-users] Jumbo frame questions
Hello,
I made changes to support Jumbo Frames (9k). Besides the driver
changes, I used TCP_MSS of 9000. All is good with about 100Mb/S speed
increase.
I dropped back to a connection that doesn't support jumbo frames
and I have connection problems because of TCP_MSS not being e.g. 1512.
I cannot use something like: #define TCP_MSS (UseJumbo ? 9000 :
1512).
How can I adjust TCP_MSS when I'm on a "normal" network? Or...
what else do I need to look at for supporting Jumbo frames
transparently? Shouldn't my lwIP side see the other end's MSS on
connection and downsize accordingly?
If this is a basic networking or TCP question and off topic,
please let me know where to find what I need.
Thank you,
Bill Auerbach
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