AP9631 Network Interface restarted

[Anonymous user]

I have an AP9631 that seems to "Network Interface restarted" every couple days or so.  I have upgraded the firmware to v.6.4.6 , but this has not solved the issue. I looked through the logs files but dont see anything helps narrow down where the problem is. 

I am attaching the sanitized files if anyone could help narrow down the issue. 

Thanks

[Anonymous user]

There's a watchdog timer built into the AP9631 platform. If the network is quiet enough, it might sense the lack of traffic as a problem and restart the management card. There is also a ping test that takes place from time to time and a failure there could also restart the card.

[voidstar_apc]

It looks like a known issue with that firmware -- you could try reducing notifications ie removing SNMP trap receivers and email recipients.

[Philipp_apc]

Will there be a possibility to disable this watchdog and/or ping feature in the future?

I tried to disable all unecessary services: ftp, snmp but I still get the network card restart and it takes up to 4 minutes

It is especially annoying for me because I use the APC7920B in automated tests which then fail because I cannot connect to the device when the interface is restarting.

Additional information:

aos: v6.5.6

rpdu2g: v6.5.6

bootmon: v1.0.8

[Terry_Kennedy_apc]

If you request a "Technical Support Debug Information Download" from the About / Support web page on your device, you'll get a .tar.gz file which contains a number of useful things. I don't remember which file it is (maybe the debug one), but one of them has a code identifying the cause of the watchdog reset. One of the APC folks can probably look that up for you and tell you why your card is resetting.

[Philipp_apc · Accepted solution]

@APC I could reproduce the behavior again and got a core dump where should I send the snapshot?

Snippets:

dump.txt

09/07/2018 10:17:26 Failsafe Reset
Specific code = 200


AOS v6.5.6 rpdu2 v6.5.6
Serial Number: 5A1750E04651
AOS Binary Date/Time: Mar 30 2018 16:51:08
APP Binary Date/Time: Apr 24 2018 11:42:41

Task Dump Task ID 166



 Data in RAM is incomplete - dump aborted!

events.txt:

09/12/2018    21:53:37    System    Network Interface restarted.    0x0002 (occurs multiple times)

debug.txt:

09/12/2018 21:20:27 Requested Reset 
09/12/2018 21:53:38 Failsafe Reset 
09/12/2018 22:49:52 Failsafe Reset
...
09/07/2018 09:18:33 .\os\os_heap.c:191 check_heap: block size mismatch.
09/07/2018 09:18:40 Software Exception Reset

09/07/2018 10:14:21 
Less than 100 bytes in stack, task 220