Establishing Active and Standby Roles

Oracle® Enterprise Session Border Controller s establish active and standby roles in the following ways.

• If a Oracle® Enterprise Session Border Controller boots up and is alone in the network, it is automatically the active system. If you then pair a second Oracle® Enterprise Session Border Controller with the first to form an HA node, then the second system to boot up will establish itself as the standby automatically.
• If both Oracle® Enterprise Session Border Controller s in the HA node boot up at the same time, they negotiate with each other for the active role. If both systems have perfect health, then the Oracle® Enterprise Session Border Controller with the lowest HA rear interface IPv4 address will become the active Oracle® Enterprise Session Border Controller . The Oracle® Enterprise Session Border Controller with the higher HA rear interface IPv4 address will become the standby Oracle® Enterprise Session Border Controller .
• If the rear physical link between the two Oracle® Enterprise Session Border Controller s fails during boot up or operation, both will attempt to become the active Oracle® Enterprise Session Border Controller . In this case, processing will not work properly.