NS X.25 Migration: NS 3000/V PAD Access to NS 3000/iX

Migrating from NS 3000/V PAD Access to NS 3000/iX

•L.U.G. Inbound Address from the NS 3000/V screen with the path:

@NETXPORT.NI.niname.PROTOCOL.LUGSPEC.INLUG

•L.U.G. Outbound Address from the NS 3000/V screen with the path:

@NETXPORT.NI.niname.PROTOCOL.X25.LUGSPEC. OUTLUG

PAD Access Migration Categories

The way you assign a PAD device depends on what the device is and how it will be used. Asynchronous devices attached to DTCs can either be configured with nailed or non-nailed logical device numbers on each of the MPE/iX host systems to which they have access. The following subsections describe the characteristics of nailed and non-nailed devices.

Non-Nailed Devices

A non-nailed device is a session-accepting device that is not permanently associated with an ldev number at configuration time. When the user at such a device logs on to an MPE/iX system, an ldev is assigned from a pool of ldevs set aside for this purpose at configuration time. The device characteristics of the PAD devices must match the non-nailed PAD terminal profile.

The association between a non-nailed device and the assigned ldev exists only for the duration of the session. One advantage of the use of non-nailed device connections is that configuration is simplified, since it is not required that each non-nailed device be individually configured.

The host cannot make an outbound call to a non-nailed device.

Nailed Devices

A nailed device is one with a permanently assigned ldev. The assignment is configured on the MPE/iX host system. Nailed devices can be accessed programmatically through their ldev number. There is an ldev-to-25-address mapping. The host can support both inbound and outbound calls.

Configuration of Nailed Versus Non-Nailed Devices

Following are some points to remember when configuring nailed and non-nailed PAD devices:

•Printer must be nailed.

•Terminals may be nailed or non-nailed.

•Programmatic access requires a nailed device.

•Logon access may be either nailed or non-nailed.

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Appendix C