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Re: [lwip-devel] TCP window processing bug
From: |
Leon Woestenberg |
Subject: |
Re: [lwip-devel] TCP window processing bug |
Date: |
Tue, 23 Sep 2003 00:32:16 +0200 |
Hello Karl,
>
> I think there is a small bug in lwIP's TCP window processing.
>
> I have a simple file transfer application where host A sends data
> continuously to host B. No data travels from B back to A. While
> lwIP on A processes incoming ACKs, it ignores the window updates
> in the ACKs. This is because the incoming segments contain no data
> (they are just ACKs) and the initial value of snd_wl1 is incorrect.
>
Karl, could you explain in which ways this bug affected the transfer you
describe above?
I faced data loss problem in a similar scenario, I think in both the 0.6.3
as well as the 0.6.4 release. I always blamed my application but have
reviewed it over and over without finding anything weird.
Regards,
Leon.