Re: [lwip-users] Debug pppos packet loss issue

[Axel Lin]

2017-03-04 14:47 GMT+08:00 Axel Lin <address@hidden>:
> 2017-03-03 22:44 GMT+08:00 Patrick Klos <address@hidden>:
>> On 3/3/2017 5:59 AM, Axel Lin wrote:
>>>>
>>>> Axel Lin" wrote:
>>>> LTE or not doesn't matter much: TCP should rearrange the stream based on
>>>> good checksums and sequence numbers.
>>>> If anything is wrong at the application level, I would first debug the
>>>> application, not the PPP connection.
>>>
>>> Actually, I did check the application code multiple times.
>>> Today I try the same application code using wifi module and there is no
>>> problem.
>>> The download size mismatch issue only happens when using LTE module.
>>
>>
>> I would like to remind you that using WiFi or ethernet will have completely
>> different timing that PPP.  I also don't know if the context from which you
>> report PPP packets is similar enough to the context from which WiFi and
>> ethernet packets are reported to the LwIP stack?  Just things to keep in
>> mind...
>
> I finally figure out my problem now.
> It's a bug in my application.

Hi sarpdaltaban,
Just FYI, since you asked this to my mail.
That is because my application did not read all data in pbuf chain case.

Regards,
Axel