SNAX/APC Configuration and Management Manual

Configuring Network Resources for SNAX/APC
SNAX/APC Configuration and Management Manual—138787
4-9
Configuring a Server Mechanism
A primary consideration is the configuration of the remote LU. You might expect that
the LU needs to be defined to both SNAX/APN and SNAX/APC, but this is now
optional for both subsystems. At the SNAX/APN level the line handler can dynamically
add that remote LU object, and will also delete it at the end of the session. When the
BIND is eventually received by SNAX/APC, that subsystem will also dynamically add
the PTNR-LU and PTNR-MODE objects required to establish and control the LU-LU
session (see Step Five).
Step Two:
The line handler forwards the BIND request to the service manager. The remote LU is
also added to the service manager’s configuration.
Step Three:
The service manager sends the equivalent of a CINIT message to the SNAX Creator-2
process. The message consists of selected fields from the BIND, the name of the line
handler and an internal address for the remote LU. At the SNAX/APN level an APPN
route has also been calculated and sent as part of the internal message. The APPN route
will have been forwarded by the network node, and was probably calculated when a
Locate was sent prior to the BIND.
Step Four:
The SNAX Creator-2 process must have been previously configured to deal with the
request. This configuration requires that you specify the APPL object to define:
•
a named local application (in this case LU A). Note that the SNAX Creator-2
Configuration and Control Manual describes this a pluname, however in the case of
APPN traffic the PLU/SLU is an outdated concept, and we are using the attribute to
refer to the recipient of a BIND, an SLU.
•
the METHOD of starting that application. The METHOD is SERVER.
•
the SERVER, which is $APC1.
The full SNAX Creator-2 configuration is therefore, for example
APPL C-LUA
METHOD Server
SERVER $APC1.#ZCRE
MESSAGE “[#OPENNAME][#REQUESTER][#SERVICE][#MODE]”.
As part of this fourth step, the SNAX Creator-2 process sends a STARTUP message
containing bind parameters (the PLU, SLU and mode name), the name of the line
handler and the LU address to the requested application managed by SNAX/APC. In
Figure 4-2
on page 4-8, this is shown as
$apc1.#zcre,bindparams,openname$LH2.#znnn
For further details on SNAX Creator-2 consult the SNAX Creator-2 Configuration and
Control Manual.