Understanding Route Monitoring Groups

Monitored routes of the same type on the network side can be added to a route monitoring group. Each route monitoring group is identified by a unique name. The status of a route monitoring group depends on the status of its member routes. Service modules will switch links if the status of the route monitoring group changes.

A route monitoring group monitors the status of all its member routes. You can set the logical relationship between the monitored routes in a group to AND or OR.

• When the logical relationship between the monitored routes in a route monitoring group is set to AND, the group status changes to Down as long as one route in the group goes Down. The route management (RM) module then instructs the service modules to switch links.
• When the logical relationship between the monitored routes in a route monitoring group is set to OR, the group status only changes to Down when all the routes in the group go Down. The RM module then instructs the service modules to switch links.