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Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost
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From: |
Sylvain Rochet |
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Subject: |
Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending |
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Date: |
Thu, 24 Nov 2016 21:38:57 +0100 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
Hi Marco,
On Thu, Nov 24, 2016 at 09:25:24PM +0100, Marco Jakobs wrote:
>
> it must happen before it goes to PPP. If there would be issues in the
> serial stream (causing lost data), the sequence number of the next
> unbroken fragment would be wrong. As the sequence numbers in the "lost
> fragment" variant are perfect, I assume it must happen before LwIP
> assigns the sequence numbers.
From here it looks like the second PPP fragment you are seeing is
actually a mix of the second and third fragment. Could you check that ?
Sylvain
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- Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending, (continued)
- Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending, Marco Jakobs, 2016/11/25
- Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending, Sylvain Rochet, 2016/11/25
- Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending, Marco Jakobs, 2016/11/25
- Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending, Marco Jakobs, 2016/11/24
- Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending, Marco Jakobs, 2016/11/24
Re: [lwip-users] [Issue] TCP fragmentation over PPP - fragments are lost in LwIP if data is queued for sending, Sylvain Rochet, 2016/11/24