Using Linked Product Regions › Centralized Control of Connected Regions › ISR › ISR Planning

ISR Planning

Before you activate ISR connections throughout the network, establish a plan for processing data in the ISR capable environments. Consider the following factors:

• The rate at which messages are received in remote regions
• In which regions you require ISR to run
• The types of messages you want to receive (For example, you want to filter out messages of a certain severity.)

Message Loop Protection

When data exchange takes place using ISR, the following rules apply:

• ISR does not return data to the region from which it was sourced.
• ISR does not return data to the region from which it last came.

This protection is applied to avoid the possibility of one or more messages being continually sent from region to region in a message loop.

However, in some configurations, a message, sourced from outside a group of connected regions, could bypass the rules and enter a message loop. Always be aware of this possibility when planning your ISR connections. Some conversations provide additional protection against such an occurrence.