Cross-domain resource manager major node

This topic describes sample cross-domain resource manager major node definitions.

A cross-domain resource manager (CDRM) is the part of an SSCP that supports cross-domain session setup and takedown. Before logical units in one domain can have cross-domain sessions with logical units in another domain, an SSCP-SSCP session must be established between the SSCPs of the two domains.

You define a CDRM in a cross-domain resource manager major node. You need to define a CDRM major node to permit cross-domain sessions in subarea networks. For pure APPN networks, in contrast, you do not need to define CDRM major nodes. However, the use of virtual-route-based transmission groups between APPN nodes with subarea capability (interchange nodes and migration data hosts) requires the definition of cross-domain resource major nodes.