How BG Processes Send Messages to WIS Processes

The following diagram shows how the BG processes send messages to the WIS processes using the default configuration.

1. All four BG processes are configured to write messages to a single Mbox set, WMDMBSET.
2. The WMDMBSET Mbox set contains two message queues, WISMBOX1 and WISMBOX2.
3. Both WISMBD processes are configured to read messages from the WMDMBSET Mbox set. (Each WISMBD process then forwards each message to the appropriate WIS process via RPC.)