Sun Microsystems SunLink SNA 9.1 PU2.1, Руководство по настройке

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F-6 SunLink SNA 9.1 PU2.1 Server Configuration Guide—August 1997
F
Note – The connection between the JES2 devices and the LUs is made at run
time when the sun3770 client connects to JES2. For more information, refer to
the sun3770/RJE Configuration and User Manual.
F.3 APPC Clients
The Sun PU2.1 SNA Server configuration specifies the operating characteristics
of the local SNA resources with respect to LUType 6.2. An LUType 6.2
application programmer is particularly concerned with local LUs, partner LUs,
session modes, and transaction programs. Consult with the SNA host system
programmer to determine specific values for your configuration.
The following sections describe how the APPC configuration is defined on
VTAM, CICS, and AS/400.
F.3.1 Logical Unit
The LU configuration directive defines an LUType 6.2 entry point from the
local node to the SNA network. When connecting to an SNA host, such as
VTAM or CICS, you can specify both dependent and independent LUs. A
dependent LU requires SSCP assistance in establishing a session and must act
as a secondary, single-session LU. An independent LU requires no SSCP
intervention and can be a primary LU supporting parallel sessions.
Independent LUs, normally used for connecting with peer systems, such as an
AS/400 or a PC running APPC/PC, can also be connected directly to an IBM
host. From the perspective of the LUType 6.2 programmer, only the name of
the LU is relevant, since the other aspects are controlled by the configuration.
F.3.1.1 VTAM
The Sun LU configuration is matched against the VTAM LU when connecting
with an IBM host. For a dependent LU, the local address is specified as
LOCADDR=
n
, where n is a nonzero value representing the local address.
A dependent LU must be associated with a specific DLC in the Sun
configuration. You can define a network-qualified name or a fully-qualified
name with the Network Qual Name parameter as
[ NETID.]NODEID
, where
NETID is an optional network identifier and NODEID is a node identifier.