Cisco Systems 11.0 BT manual Preferred-nnserver

preferred-nnserver

preferred-nnserver

Use the preferred-nnserverDLUR configuration command to specify a preferred network node (NN) as server. Use the no form of this command to remove the preference.

preferred-nnserver name no preferred-nnserver

Syntax Description

name A fully qualified name of a NN.

Default

This command has no defaults.

Command Mode

DLUR configuration

Usage Guidelines

Fully qualified names consist of two case-insensitive alphanumeric strings, separated by a period. However, for compatibility with existing APPN products, including VTAM, the characters “#” (pound), “@” (at), and “$” (dollar) are allowed in the fully qualified name strings. Each string is from one to eight characters long; for example, RA12.NODM1PP. The portion of the name before the period is the NETID and is shared between entities in the same logical network.

When no preferred server is specified, the DLUR will request NN server support from the first suitable node with which it makes contact. If refused, it will try the next one, and so on.

If a preferred server is specified, then DLUR will wait a short time to allow a link to the preferred server to materialize. If the preferred server is not found in that time, any suitable node can be used, as above.

DLUR will not relinquish the current NN server merely because the preferred server becomes available.

Example

The following command selects SYD.VMX as the preferred NN server:

preferred-nnserver SYD.VMX

TN3270 Server Commands 31