Failover requires connecting the paired Sensors via an interconnection cable or cables. Communication between paired Sensors maintains the failover heartbeat and state information.
There is no standard heartbeat port across all the Sensor models. The port or ports you use to connect the two Sensors depends on the Sensor model. The Sensor models and their failover interconnection ports are described below.
NS-series Sensor | Failover port |
|---|---|
NS9600 standalone | G0/1 |
NS9600 stack (2-node) | G0/3 |
NS9500 | G0/1 |
NS9300 | G1/1 and G1/2 |
NS9200 | G0/1 |
NS9100 | G0/1 |
NS7600 |
|
NS7500 | G0/1 |
NS7350 | G0/1 |
NS7250 | G0/1 |
NS7150 | G0/1 |
NS7300 | G0/1 |
NS7200 | G0/1 |
NS7100 | G0/1 |
NS5200 | G1/1 and G1/2 |
NS5100 | G1/1 and G1/2 |
NS3600 | 5 |
NS3200/NS3100 | 1 |
Note
High availability is not supported in NS3500 Sensor.
The following is a quick summary of the rules for connecting cables:
Connecting the heartbeat cable must be direct; you must not connect the heartbeat cable through another network device, such as a switch.
When using a copper SFP, make sure to change the Media Type of the port to Copper in the Physical Ports page before creating the HA pair.
When 2 ports are used on each Sensor for the heartbeat connection, always connect cables between identical port names. For example, in NS9600 high availability configuration, port G0/1 on Sensor 1 must be connected to port G0/1 on Sensor 2 (not G0/2).