To define a switched major node containing definitions for switched connections to subarea or peripheral nodes, code a switched line within a local switched line group, and code a corresponding remote physical unit in the switched major node.
These switched connections can be made to a communication controller that is attached to a host processor. These connections can also be made to a host through an IBM® 3172 Nways Interconnect Controller, an Open Systems Adapter, or through an IP network for Enterprise Extender.
The remote physical unit can be a type 1, 2, 4, or 5 physical unit that is defined within a switched major node.