[En-Nut-Discussion] ethernet connection down

[Alexander Baranov]

Hi.
>From time to time I encounter this problem. It occurs mainly at some remote installations while everything may work at the lab. I take it as inevitability and use external reset monitor to reboot the box for such a case. 
Alexander.
  ----- Original Message ----- 
  From: Peter Gaskell 
  To: en-nut-discussion at egnite.de 
  Sent: Thursday, February 03, 2005 5:53 PM
  Subject: [En-Nut-Discussion] ethernet connection down 


  I am running an ethernut 2.1B connected to the internet with a static IP. I have also tried an ethernut 2.0A and this seems to exhibit the same behavior. We access the webserver periodically every minute to get data posted on the webpage. The httpd and telnet threads we are running are pretty much copied from example code. After several hours of normal operations (4 to 6 usually), the ethernut is no longer accessible over the network. All the LEDs are showing activity, but any incoming connection will time out, no ping etc. I set up a serial port thread to check the threads with nutThreadList; all are listed as OK and appear normal. The NutHeapAvailable is around 18k. I can then reboot over the serial port (or by power cycling) and the ethernut will be available again over telnet and http. This problem is periodic, but it takes several hours to crash, and not everything crashes, so the watchdog timer is of no use.

  Has anyone seen this problem? Does anyone have any suggestions on methods to figure out what is going on here?


  Cheers,
  Peter


  Peter Gaskell
  University of Oregon 
  Oregon Center for Optics
  pgaskell at darkwing.uoregon.edu


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