Library /sys$common/syshlp/nclhelp.hlb set, x25_server, client, service nodes (OpenVMS)  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Default: Empty set               Value: Set of candidate records

    Set of nodes that host the x25 client entities to which
    connections can be made.  Each candidate record consists of a
    Rating, which is an integer, and a Node, which is specified as a
    fullname.