Library /sys$common/syshlp/nclhelp.hlb create, routing, permitted_neighbor, Exception Messages  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 o  duplicate node id

    A routing permitted neighbor entity with the specified node ID
    already exists.

    Argument:

    name       The name of the permitted neighbor that already has
               this node ID.

 o  permitted neighbor already exists

    A routing permitted neighbor entity with the specified name
    already exists.