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Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost


From: Marco Jakobs
Subject: Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending
Date: Fri, 25 Nov 2016 16:06:04 +0100

Hi Sylvain,

> Added to that, try disabling VJ compression (VJ_SUPPORT = 0), VJ support in 
> 1.4.1 is not working properly.

I already have VJ disabled.


>Yup. At least I'm not going for a deep analysis of the issue because I'm 
>confident, if the issue exists, that it is fixed in 2.0.0.

As written a minute ago, I'm not sure it's related to PPP. pppifOutput gets 
only called 2 times by tcp_out ... so it can't do more than just doing two 
outputs.

Even in tcp_out we see 376 bytes disappeared. Looks like something happens in 
the queue before ...




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