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

102 Chapter4
APPC Subsystem Configuration
Planning APPC Configuration
Planning APPC Configuration
Before using NMMGR, you should plan the following things:
1. The number of session types you will configure.
2. The number of sessions you will need for each session type.
3. The number of sessions that will be activated automatically at
subsystem startup.
Appendix C , “Configuration Worksheets,” provides forms you can fill
out to help you plan APPC subsystem configuration. Step-by-step
instructions for completing the forms are included in Appendix C ,
“Configuration Worksheets.”
Planning the Number of Session Types
You may configure up to 60 session types for the APPC subsystem. This
total includes both independent and dependent LU session types. The
number of session types you will need depends on three things:
1. The number of SNA nodes (copies of SNA/SDLC Link/XL) the APPC
subsystem will use. Each session type is configured to use only one
link to a remote system.
2. The number of remote LUs with which APPC LUs will interact.
Each session type is configured to communicate with only one
remote LU.
3. The number of sessions you want to reserve for particular groups of
users. A reserved session type should use LUs that are not
configured for any other session type.
Session Types for Different SNA Nodes
Each SNA node (each copy of SNA/SDLC Link/XL) on the HP 3000 is a
link with one remote system. If you plan to use several SNA nodes, you
will need to configure at least one session type for each node. The SNA
Node Name field of the “APPC: Independent LU Session Type Data” or
“APPC: Dependent LU Session Type Data” screen specifies the SNA
node you want to use.
Some remote systems, like the IBM AS/400, can perform intermediate
routing between nodes in an SNA network. If your HP 3000 is
connected to one of these systems, you can configure independent LU
session types to communicate with nodes that are not directly
connected to your local system. The Fully Qualified Remote LU
Name field of the “APPC: Independent LU Session Type Data” screen
specifies the network location of the LU with which you want to
communicate.