Session Support
Host Integration Server supports many types of SNA communications sessions:
A System Services Control Point – physical unit (SSCP-PU)
A Host Integration Server physical unit (PU) Services Manager which communicates with the System Services Control Point (SSCP) on the host
An SSCP-LU
A Host Integration Server logical unit (LU) which communicates with a host SSCP
A Primary logical unit-secondary logical unit (PLU-SLU)
A Host Integration Server LU which communicates with host or peer LUs