A network outage triggers multiple redundant alerts and burns out your alert balance. Site24x7's monitor dependency configuration helps you effectively handle the alert flood during an outage.
https://www.site24x7.com/help/admin/monitor-groups.html#dependency-configuration

Let's say you're monitoring your server with Site24x7, along with a few plugins hosted in it. Any downtime faced by the server will also affect the plugins, resulting in a flood of alerts for the server and the individual plugins.

To avoid this, Site24x7 gives you the capability to configure monitor dependencies and suppress multiple alerts.

You can configure monitor dependency for an individual monitor, or a monitor group.

Say you're monitoring a MySql plugin running on a Windows server. In this case, you can configure the plugin to be dependent on the server monitor. Choose the plugin, click edit, and from the drop-down provided for the field Dependent on Monitor, select the corresponding Windows server.

Now, when the plugin faces downtime, the status of the monitor it is dependant on, in this case the server, is checked. If the server is down, then an alert for the plugin will not be sent. Alternatively, if the server is up, an alert for the the plugin's downtime will be sent.

Let's consider the scenario where you have the Windows server, the MySql plugin, the Windows backup plugin, and few other plugins as part of a monitor group. Since the MySql plugin and the other plugin monitors in the group are dependant on the Windows server, choose the Windows server as the monitor for which all other monitors will be dependent.

During an outage, when the server goes down and all the monitors dependant on it also go down, Site24x7 will send out a single alert for the server, instead of sending out individual alert messages for all the monitors.