The IPS/TPS devices provide High Availability (HA) functionality as a failover mechanism to minimize network downtime in the event of a device failure. The High Availability feature allows you to view the current HA status and change the configuration as needed. Three types of High Availability mechanisms are available:
- Intrinsic Network HA (INHA): For individual device deployment.
- Transparent High Availability (TRHA): For devices deployed in a redundant configuration where one device takes over for the other in the event of system failure.
- Zero-Power High Availability: Provides high availability through an external device or through a ZPHA module.
The High Availability page includes the following fields.
|Intrinsic Network HA||State||Enables you to manually change the HA state for the device. Selecting Layer-2 Fallback and clicking Apply triggers high availability. Traffic flowing through each segment on the device will be either blocked or permitted based on the segment configuration. Any permitted traffic will not be inspected. Select Normal to return the device to normal operation.|
|Current State||Indicates the current Intrinsic Network HA state of the device.|
In Normal: state, the device is operating normally and inspecting traffic. I
In Layer-2 Fallback state, the device is in Layer-2 fallback mode, handling traffic on each segment based on the Layer-2 fallback action setting (permit or block) for the segment. Any traffic allowed through the device is not inspected.
|Transparent HA||Enabled||Enables Transparent HA. If selected, you must specify the IP address for the other IPS device configured as the HA partner.|
|Partner IP Address||Specifies the IP address of the other device in the transparent HA pair.|
|Current State||Indicates the current TRHA state.|
Communication error indicates that an error occurred during communication.
Latency indicates that a warning occurred during communication.
Normal indicates that the system is operating normally.
|Zero Power HA||Normal||Indicates that the device is operating normally.|
|Bypass||Indicates that ZPHA is enabled.|
- From the LSM menu, click System -> High Availability (HA).
- Edit your High Availability change settings as needed:
- Intrinsic Network HA
- Transparent HA
- Zero-Power HA
- Click Apply to apply the changes.
Reference: Local Security Manager User's Guide