If you have configured a HA pair before connecting the heartbeat cables, you will notice Failover peer status errors appearing on the System Faults monitor until you connect the heartbeat cable. These messages will not appear if the two communicate properly. Errors also appear when the Media Type is not selected as Copper when using copper SFPs.
The status of the communication between the standalone Sensors can be monitored on the Devices → <Admin Domain Name> → Devices → <Device Name> → Member Sensors → <HA Pair Node> → Summary page of the Manager interface or directly from the CLI of either Sensor.
The status of the communication between the Sensors in a stack can be monitored on the Devices → <Admin Domain Name> → Devices → <Device Name> → Member Sensors → <Stackname-node id> → Summary page of the Manager interface or directly from the CLI of either Sensor.
The Sensor command line interface (CLI) is a valuable tool for verifying correct configuration as well as diagnosing possible problems.
Note
For more information, see the CLI commands section.