Multisystem support at the message level provides for the distribution of messages to consolidated consoles in focal point regions in the multisystem environment.
The following illustration shows how each region communicates with other connected regions by using Inter-Network Management Connection (INMC)/Inter-System Routing (ISR) links.

Each region has an ISR link manager. The ISR link manager is started up as part of region initialization. The ISR link is active but disabled until a user starts console consolidation. The ISR link manager enables message flow across the link based on requests from users for messages that match specific message profiles.
The user profile determines the messages seen on a consolidated console. The ISR link manager suppresses those messages that are not required, thus reducing the amount of message flow. A user who has not been assigned message profiles or has all the assigned message profiles disabled sees no messages on the consolidated console.
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