If a coordination module is unavailable and the coordination mode is ALWAYS, all client connections are refused until a coordination module becomes available. When the coordination module connects to the OpenSwitch server, all pending notifications are broadcast to the coordination module.
If a coordination module is unavailable, and the coordination mode is set to ENFORCED, the connection is refused and a message is sent back to the client.
If COORD_MODE is set to AVAIL, client connections are made if a coordination module is available. If a coordination module is not available, OpenSwitch requests the name of an available Adaptive Server from the defined pools in the configuration file.
