State Transitions
Oracle® Enterprise Session Border Controllers can experience a series of states as they become active or become standby.
Note:
Packet processing only occurs on an active Oracle® Enterprise Session Border Controller .| State | Description |
|---|---|
| Initial | When the Oracle® Enterprise Session Border Controller is booting. |
| Becoming Active | When the Oracle® Enterprise Session Border Controller has negotiated to become the active system, but is waiting the time that you set to become fully active. Packets cannot be processed in this state. |
| Active | When the Oracle® Enterprise Session Border Controller is handling all media, signaling, and configuration processing. |
| Relinquishing Active | When the Oracle® Enterprise Session Border Controller is giving up its Active status, but before it has become standby. This state is very brief. |
| Becoming Standby | When the Oracle® Enterprise Session Border Controller is becoming the standby system but is waiting to become fully synchronized. It remains in this state for the period of time you set in the becoming-standby-time parameter, or until it is fully synchronized. |
| Standby | When the Oracle® Enterprise Session Border Controller is fully synchronized with its active system in the HA node. |
| OutOfService | When the Oracle® Enterprise Session Border Controller cannot become synchronized in the period of time you set in the becoming-standby-time parameter. |
State Transition Sequences
When the active Oracle® Enterprise Session Border Controller assumes its role as the as the active system, but then changes roles with the standby Oracle® Enterprise Session Border Controller to become standby, it goes through the following sequence of state transitions:
- Active
- RelinquishingActive
- BecomingStandby
- Standby
When the standby Oracle® Enterprise Session Border Controller assumes its role as the standby system, but then changes roles with the active Oracle® Enterprise Session Border Controller to become active, it goes through the following sequence of state transitions:
- Standby
- BecomingActive
- Active