ClusterXL monitors VLAN IDs for connectivity failure or miscommunication, and initiates failover when necessary. By default, both the highest and the lowest VLAN IDs are monitored for failure. This is done by sending ClusterXL Control Protocol (CCP) packets on round-trip paths at a set interval.
You can configure VSX to monitor all VLANs.
When a failure is detected, a log of the failure is recorded in SmartView Tracker.