Preferred-Nnserver - Cisco 11.0 BT Release Notes

Release note and update to configuration guides and command references
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preferred-nnserver

Use the preferred-nnserver DLUR 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
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
A fully qualified name of a NN.
preferred-nnserver
TN3270 Server Commands
31

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