SNAX/XF and SNAX/APN Configuration and Management Manual

Attributes for SNAX/XF and SNAX/APN
SNAX/XF and SNAX/APN Configuration and Management Manual—425836-006
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CPNAME (SUBSYS Object) - for SNAX/APN Only
alone. This is true only for remote PU’s configured as NNSERVER NONE or without
the NNSERVER attribute.
For a remote PU configured as NNSERVER, MAIN, BKUP, or OTHER, the CPNAME is
an optional attribute. If not explicitly defined by the user, the CPNAME defaults to 8
blank characters. In such cases, the HP NonStop node extracts the CPNAME from the
incoming Exchange Identification (XID) from the adjacent node.
If the adjacent node does not send a control point name and SNA network identifier in
the incoming XID3 frame, the NonStop node attempts to validate using the
PUIDBLK/PUIDNUM attributes of the remote PU object.
When specified, CPNAME should match the parameter in which the adjacent node
defines its own control point name. The name and location of this parameter varies by
IBM system type. Therefore, the following matches must be made:

AS/400 systems: The SCF CPNAME attribute of the remote PU object must match
the CPNAME parameter in the Network Attributes description.

PS/2 systems running OS/2: The SCF CPNAME attribute of the remote PU object
must match the Local Node Name in the Local Node Characteristics definition.

Systems using NCP and VTAM: The SCF CPNAME of the remote PU object must
match the SSCPNAME parameter in the VTAM Start-Up List.
When link stations negotiate their roles, XID validation takes place before negotiation
occurs.
CPNAME (SUBSYS Object) - for SNAX/APN Only
When applied to the SUBSYS object, CPNAME specifies the control point name of the
NonStop node. The control point name, together with the SNA network identifier
specified in the SNANETID attribute, define the link station of the NonStop node.
This name can contain from 1 through 8 characters and must use the SNA type 1134
character set. For a description of this character set, see the IBM Systems Network
Architecture: Formats.
The control point name specified in CPNAME is sent in an Exchange Identification,
Format 3 (XID3) frame to the adjacent node. This control point name, together with the
SNA network identifier, is used in extended BIND requests.
Under certain circumstances, CPNAME must match parameters specified on the IBM
system:
Default: NonStop system name without backslash (\)
Value: String of 1 through 8 characters in the SNA type 1134 character
set
Objects: SUBSYS