Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending

[Sylvain Rochet]

Hi,

On Thu, Nov 24, 2016 at 05:19:23PM +0100, Marco Jakobs wrote:
>  
> It looks as if the second packet of 1400 bytes (starting with 3), 
> which is written on the connection before 1) was already sent over the 
> PPP link, overwrites the already queued segment 2). 

It can't really happen, are you sure your serial output function is 
blocking until all data are sent (or buffered in a fifo) ?

Sylvain

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