Migrating from an MSC network to an IMSplex network

When migrating or converting an existing MSC network to an IMSplex with shared queues, you need to retain the MSNAME definitions in your IMS systems for as long as you have transaction messages that use those definitions on the shared queues.

You also need to retain any MSC link definitions to IMS systems outside the IMSplex. Once you have finished testing the IMSplex and are sure you will not need to return any IMS systems in the IMSplex to an MSC-only network, you can remove any MSC link definitions between IMSplex member systems.

In an IMSplex, if one IMS system is MSC capable, then all the IMS systems in the IMSplex must be MSC capable. To enable an IMS system for MSC, define an MSC link for the IMS system during system definition. This MSC link definition does not need to be functional.