If the customer requires High Availability (HA) for the Avaya Session Border Controller for Enterprise...

If the customer requires High Availability (HA) for the Avaya Session Border Controller for Enterprise (ASBCE), the minimum number of servers or virtual machines that are required is 2. High Availability (HA) is a feature that provides redundancy and fault tolerance for the ASBCE server by deploying two ASBCE servers in a pair, either in the same location or geographically dispersed. The two ASBCE servers act as a single logical entity and share a common configuration and license. One ASBCE server is designated as the active server and handles all traffic, while the other ASBCE server is designated as the standby server and monitors the status of the active server. If the active server fails or becomes unreachable, the standby server takes over and becomes the new active server, ensuring continuity ofservice. The two ASBCE servers synchronize their configuration and state information using a dedicated HA link between them