Creating MSC descriptors

MSC descriptors relate remote LTERMs to statically defined MSC links.

IMS creates MSC descriptors when you specify IMS system definition options to create ETO terminal descriptors. MSC descriptors relate remote NAME macros to defined MSC links.

Recommendation: Define all LTERMs in remote IMS systems by using MSC descriptors. The MSC Verification utility in the target IMS system can then associate the remote LTERMs with the corresponding local LTERMs. IMS issues message DFS2331W if the corresponding local LTERMs are not found.

IMS processes only those MSC descriptors that are associated with the MSC links that are defined within the system being initialized. IMS ignores all other MSC descriptors. If each logical link path name is unique in the network, you can maintain your network's MSC definition source in a single PROCLIB member, IMS.PROCLIB.