[lwip-users] Re: decreasing throughput ends in lwip-collapse

[Andre Puschmann]

Hello,
here is the ethereal-file i promised to upload.

http://www.puschmann.net/public/capture.tar.bz2 (~1,5MB)


Regards

Andre




Andre Puschmann wrote:
> Kieran Mansley wrote:
>> On Sat, 2006-10-28 at 13:01 +0200, Andre Puschmann wrote:
>>> Hello,
>>>
>>> sorry for the delay once again.
>>> now I can give some more detailed information about what's going on. I
>>> attached a ethereal capture file and a log file.
>> I'd also check to see if there are large numbers of packets being
>> discarded due to bad checksums (at both ends).  Although ethereal often
>> mis-reports bad checksums (e.g. if it has captured only part of a
>> packet) there are a large number being flagged as bad in that trace.
>>
>> Kieran 
> 
> Hi Kieran,
> I will post a full captured connection tomorrow, since I don't have more
> files on this box.
> 
> I also noticed that ethereal often (always?) mis-reports bad checksums.
> If I remember correctly all ACKs of the windows-box are flagged as
> "incorrect".
> 
> The curious of all those problems is that at the beginning everything
> works well.
> And than at a particular point .. the whole system is producing very odd
> things.
> Sometimes I can transfer up to 1,5gb (with 25mbit/s) with one
> connection. So it doesn't seem to be a buffer or memory problem, true?
> The fact that I can provoke this point e.g. starting a new connection or
> producing some load backs this up. But this doesn't work regularly.
> 
> 
> Regards
> 
> 
> André