A few weeks ago our ISR 4451-X Cisco Router started randomly going down in LibreNMS (Internet connectivity has been completely unaffected), only changes have been regular daily updates and additional devices being added to LibreNMS.
Processor usage, storage usage, and memory usage are normal on the Debian 9 server I run LibreNMS on as well as normal on the ISR itself. There doesn’t appear to be a pattern to the drops, sometimes it’s the middle of the night and sometimes randomly during the day.
Here is my validate output:
[OK] Composer Version: 1.8.0
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
Output of ./discovery.php -h HOSTNAME -d for this device is here: https://p.libren.ms/view/d5702666
Output of ./poller.php -h HOSTNAME -r -f -d for this device is here:
Any ideas? Any other ISR users experiencing this?