State Transitions
ESBCs can experience a series of states as they become active or become standby.
Note:
Packet processing only occurs on an active ESBC.State | Description |
---|---|
Initial | When the ESBC is booting. |
Becoming Active | When the ESBC 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 ESBC is handling all media, signaling, and configuration processing. |
Relinquishing Active | When the ESBC is giving up its Active status, but before it has become standby. This state is very brief. |
Becoming Standby | When the ESBC 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 ESBC is fully synchronized with its active system in the HA node. |
OutOfService | When the ESBC 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