[lwip-devel] [bug #20640] Request getting lost/unanswered in lwip stack

[Vipin]

URL:
  <http://savannah.nongnu.org/bugs/?20640>

                 Summary: Request getting lost/unanswered in lwip stack
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: vipin_dce
            Submitted on: Tuesday 07/31/2007 at 09:18
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 

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Details:

Hello all, 

I found some problem related with LWIP stack. I will be happy if you can take
out some time for this.

My Application is:  //Same as mentioned in Bug #20506

1. To request 4000 bytes of data from my board through web browser running on
the PC. 
2. I am requesting this much data from browser after every 200ms. 
3. The request is handled by http layer of my firmware. 

Observation:
1. Since request is issued by client (PC) after every 200ms it should reach
http layer at this frequency but I observed that many a times this request is
not reaching the http layer.

2. The time between requests is also varying and it goes upto 500ms(it is
expected to remain constant at 200ms).See timings and transaction between 139
& 155 packets in the attached trace.

3. Some of the requests don't found an answer (check 177 and 243 packets in
the attached ethereal trace)

What are your comments on this?



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File Attachments:


-------------------------------------------------------
Date: Tuesday 07/31/2007 at 09:18  Name: flick  Size: 77kB   By: vipin_dce

<http://savannah.nongnu.org/bugs/download.php?file_id=13533>

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