z/OS Communications Server: SNA Network Implementation Guide
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Network naming conventions

z/OS Communications Server: SNA Network Implementation Guide
SC27-3672-01

SNA requires each terminal and application program (logical unit) to be identified by a unique, network-qualified name. Network-qualified names are used by specifying the NQNMODE=NQNAME start option or defining cross-network resources with the NQNMODE=NQNAME operand on the CDRSC definition statement.

If you choose not to use network-qualified names, you can use the optional facility SNI provides for translating terminal and application program names to cross-network (alias) names to avoid name duplication conflicts. By using this facility, the name structure used in each network can be maintained. A common network naming convention among the interconnected networks does not have to be established. If multiple SNA resources are known by the same name in different networks, the name conflict can be resolved by using one or a combination of:
  • The NetView® alias name translation facility
  • The VTAM® session management exit routine
  • Network-qualified names
If you choose to fully implement network-qualified names, you do not need to use either the NetView name translation facility or the VTAM session management exit routine to resolve duplicate names.

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