Defining Connectivity Components

Defining Link Stations

The type of LU traffic to flow over the link. This choice determines what other parameters are needed for link definition.

Any

The link station can be used for both independent and dependent LU traffic. For this option, you must supply values for the fields described in “Parameters for Independent LU Traffic” and “Parameters for Dependent LU Traffic”, in addition to those described in this section.

Independent only

The link station can be used only for independent LU traffic. For this option, you must supply values for the fields described in “Parameters for Independent LU Traffic”, in addition to those described in this section.

Dependent only

The link station can be used only for dependent LU traffic. For this option, you must supply values for the fields described in “Parameters for Dependent LU Traffic”, in addition to those described in this section.

You also need to provide addressing information for contacting the adjacent node. The type of addressing information needed depends on the DLC type of the port. If you do not supply an address for the remote node, the link station acts as a nonselective listening link station, accepting incoming calls from any remote node.

Additional Link Station Parameters for SDLC.

Poll address

The poll address of the remote station. Specify the address as a two-digit (one-byte) hex value, typically starting at C1. A primary link station polls the remote station using this value. A secondary link station responds to polling with this value. The poll address is entered differently depending on the link role:

•If the link is a point-to-point link (not multi-drop), the address C1 is normally used.

•If the parent port for this link is switched incoming, the poll address is configured on the port and cannot be configured independently for each link station.

Chapter 5

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