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Using the IBC API

The ioctl command set is intended to be used by a set of daemons, one on the RVG Primary host and one on each Secondary host that is to participate in IBC message retrieval. Each must register under an identical application name and be registered before IBC message generation begins. Because registration does not survive host crashes, but IBC messages once sent do persist beyond host crashes, it is suggested that the Secondary daemons be spawned as a part of system startup.

IBC messages use at-least-once delivery semantics. Retrieval daemons must be tolerant of receiving the same IBC message more than once. It is however guaranteed any duplicate copies of a messages will be delivered before the next new message is delivered.