APPC Subsystem on MPE/XL Node Manager's Guide (30294-90007)

106 Chapter4
APPC Subsystem Configuration
Configuration Illustrations
The second illustration, Figure 4-18, shows three dependent LU session
types using the same SNA node.
Session types DEPSESS1 and DEPSESS2 share the same five LUs, each of
which can communicate with either copy of CICS on the remote system.
At subsystem startup, sessions are activated on all five LUs: two of type
DEPSESS1 and three of type DEPSESS2. To activate another session of
either type, you would have to deactivate a session of the other type in
order to free an LU.
Session type DEPSESS3 has guaranteed access to one session, because
its LU (LU002) is not configured under any other session type.
Figure 4-18 Example Configuration, Three Session Types