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

Chapter 4 93
APPC Subsystem Configuration
Configuring the APPC Subsystem
If the HP 3000 will communicate with CICS on an IBM
host, the Mode Name must match the CICS MODENAME
operand of the DFHTCT TYPE=SYSTEM macro. If the
HP 3000 will communicate with an IBM AS/400, the
Mode Name must match the MODE in the Device
Description for the partner LU on the AS/400.
The default mode name MODE0 is defined internally in
the APPC subsystem. Its defined RU size, for sending
and receiving, is 256. The size of its pacing window, for
sending and receiving, is 7. See “APPC: Mode Type
Data Screen,” later in this chapter, for more
information.
NOTE If you use MODE0 for an independent LU session type that
communicates with an IBM AS/400, you must configure a mode called
MODE0 on the AS/400.
If you use MODE0 for a dependent LU session type that communicates
with an IBM mainframe, the sessions of that type actually use the
default mode name configured for the partner LU on the IBM
mainframe. Therefore, the mode name on the IBM mainframe does not
have to be MODE0.
NOTE The names MODE0 and SNASVCMG are reserved names. You cannot
configure a mode with either of these names. (SNASVCMG is a mode used
internally by APPC to control parallel sessions.)
New Name The new name you want to assign to an existing mode
type. To rename a mode type, enter its old name in the
Mode Name field, enter its new name in the New Name
field, and press
[f4] (Rename).
APPC: Mode Type Data Screen
In the “APPC: Mode Type Data” screen, shown in figure Figure 4-12,
you configure the maximum send and receive RU sizes and the sizes of
the send and receive pacing windows. These values must be configured
for every mode type named in the “APPC: Select Mode Type” screen.
Enter the data into the “APPC: Mode Type Data” screen, and then press
[f6] (Save Data). To get back to the “APPC Configuration” screen, press
[f8] (Prior Screen) twice.