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Chapter 5. Communicating with host systems
You can configure the AS/400 system to communicate with a host system by matching AS/400
parameters.
Another option for AS/400 users is Dependent LU Requester Support (DLUR). DLUR allows dependent
secondary logical units (LU 0, 1, 2, and 3) an entry point into the APPN network. DLUR support gives the
appearance of having an adjacent connection to VTAM, but allows traversing the APPN network through
intermediate nodes. To configure DLUR, see the page Configuring Dependent LU Requester (DLUR).
Matching AS/400 parameters for a host system
You can configure the AS/400 system to communicate with a host system. This configuration requires the
coordination of parameters and values. The list contains only those configuration prompts and parameters
that require coordination on both the AS/400 and the host system. In addition, some of the parameters that
are listed may not apply to your particular configuration.
For examples of connecting an AS/400 to a host system, see “Examples: Connecting AS/400 to a host
system” on page 26.
For information about configuring host systems, see the manuals VTAM Installation and Resource
Definition, SC23-0111, and Network Control Program Resource Definition Reference, SC30-3254.
v “Matching AS/400 line description parameters for a host system”
v “Matching AS/400 controller description parameters for a host system” on page 23
v “Matching AS/400 device description parameters for a host system” on page 24
v “Matching AS/400 mode and class-of-service description parameters for a host system” on page 25
v For more information on AS/400 parameters, see Communications Configuration
.
Matching AS/400 line description parameters for a host system
You must match host system communications configuration parameters with AS/400 values. A description
of these AS/400 values are in the following table. For information about configuring host systems, see the
manuals VTAM Installation and Resource Definition, SC23-0111, and Network Control Program Resource
Definition Reference, SC30-3254.
You can specify some host system parameters on multiple definition statements, such as the GROUP,
LINE, PU, and LU. The following table lists only the lowest level definition statement that is used by the
host system.
To configure an AS/400 to a host system:
v See “Examples: Connecting AS/400 to a host system” on page 26 for an example of connecting an
AS/400 to a host system.
v Use the following table for the line description parameter.
© Copyright IBM Corp. 1998, 2001 21