Configuring Passthrough Services

Configuring PU Concentration

•Define the LUs on the local node that are used for communication with the host (the upstream LUs). Upstream LUs must be defined using the LU Type 0-3 Configuration dialog, specifying an LU type of unrestricted (unknown). To add the LUs, see “Defining LU Types 0–3”.

•If you are going use any LU pools, define them as described in “Defining LU Pools”.

To enable PU concentration, you must configure LUs on the local node to support sessions with downstream workstations. (If you configured a template on the port to support implicit downstream LUs, you may not need to define downstream LUs explicitly.) The LUs defined on the local node are referred to as “downstream LUs.” To configure downstream LUs, you need the LU numbers that are used on the downstream nodes, and the name of the host LU. (The LUs that are defined on the downstream nodes can be any dependent LU type.)

To configure downstream LUs, use one of the following methods:

Motif administration program

Select PU concentration and New downstream LU from the Services menu on the Node window.

Command-line administration program

Issue one of the following commands:

define_downstream_lu define_downstream_lu_range

Downstream LU Configuration Parameters

The following parameters are required for downstream LU configuration:

Downstream LU name

A name for each downstream LU. The LU name is used only to identify the LU locally, and does not need to match any configuration on the downstream node.

If you are defining a range of LUs, specify a base name of 1-5 characters. SNAplus2 adds a three-digit decimal string to the base name to create an LU name for each LU number you specify.

Downstream PU name

The name of the link station to the downstream node.

LU number

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