What is monitors dependency?
Q: We are looking for the ability/feature that would allow us to monitor devices and based off of the device type and depending on whether or not that device is up/down, then alert on other devices that are down.
Example: Site router is down which is being monitored remotely. ONLY send alert that the router is down and not the other 40 devices at the site.
Example: Router is up and switch #1 is up but switch #2 is down. ONLY send alert that the switch #2 is down and not the other 15 devices that are attached to that switch.
A:You can use the monitor dependency property for that:
Help: Monitor parameters
This monitor depends on availability of parameter specifies another monitor on which the current monitor depends. If that monitor is down or stopped by dependency, the current monitor will be stopped by dependency (will not be polled) and alerts for it won’t be performed. You can use this parameter to create monitor hierarchies. For example, PING monitors on all hosts in a network segment may depend on the PING monitor on the router that serves the segment; if the router goes down, there won’t be numerous false alerts executed for all hosts (say you will get a single e-mail notification instead of many).
Related topics
Monitor Parameters
Check out our Knowledge Base where we answer questions regarding various topics. Monitor dependency stops polling and alerting for a monitor when the monitor it depends on is down or stopped by dependency. Make monitors for devices in a network segment depend on the segment router monitor, so a router outage produces one upstream alert instead of many device alerts. Use the This monitor depends on availability of parameter to select the monitor that must be available before the current monitor is polled.
Frequently Asked Questions
What does monitor dependency do?
How can dependencies reduce alert noise during a site outage?
Which setting defines a dependency relationship?