HP UX SNAplus2 manual Line encoding, Dial string

Defining Connectivity Components

Defining Link Stations

•If you are configuring a primary switched outgoing link station, and you do not know the poll address of the remote secondary with which you wish to communicate, you can specify a poll address of 0xFF on the primary. This value enables the node to accept responses from a secondary, regardless of the poll address it has configured. 0xFF is not a valid address for a nonprimary link or a link that is not switched outgoing.

•If you are using a multi-drop configuration, all the secondary link stations that communicate with the same primary must have different poll addresses.

The poll addresses at both ends of the link must match. Contact your SNA network planner if you do not know the address configured at the remote system.

On a VTAM host, the poll address is configured as the ADDR= parameter in the VTAM PU definition.

On an AS/400 system, the poll address is the STNADR parameter of the Line Description.

Line encoding

The line encoding used on your SDLC line. In the U.S., this is usually NRZ. In Europe, this is usually NRZI. If you set this incorrectly, you will find that the frames being received are all discarded and do not appear in any trace.

On a switched outgoing port, the line encoding can be set independently for each link station. For other types of ports, the line encoding setting is taken from the port, so this field does not apply.

Dial string

An ASCII string to be sent to your modem in order to make it initiate the outgoing call. The dial string is required for a switched outgoing port. Refer to the documentation for your modem for more details. (Some modems do not support dial strings; in such cases, this field does not appear.)

For switched incoming ports, the dial string is configured on the port. For leased ports, this field does not apply.

158 Chapter 5