The details shown below are based on the default settings. Editing this alert has no restrictions. The trigger and clear conditions can be changed to suit your needs.
Primary purpose: Notify when a network element has gone offline.
Possible causes for this alert include:
- Power outage or brownout
- Upstream switch or router on the network is also having issues
- Device misconfiguration
- ICMP traffic to device blocked
- Emergency maintenance
- Hardware malfunction
- Crash related to the operating system
- Device removed from network
Network elements include access points, controllers, firewalls, Layer 3 switches, packet processors, routers, stacks, and switches.
|
Alert severity |
Critical |
|
Repetitive alert pause condition |
After 10 occurrences within 2 hours against a specific entity, pause the alert for 2 hours |
|
Alert trigger condition |
A network element has gone offline. |
|
Alert clear condition |
The network element is back online. |
|
Action(s) to be taken |
Check the status of the device to determine why it’s no longer online. |
