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

[Axel Lin]

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.

Thanks,
Axel