Fullnames in the DECdns or Local namespaces will contain a
    namespace nickname, followed by a colon, then one or more
    simplenames each preceded by a period.  The initial period
    signifies the root directory.  These ordered simplenames
    specify the node's position within the naming heirarchy from
    least specific to most specific.  The rightmost simplename
    represents the node itself.  Here are examples of DECdns and
    LOCAL fullnames:

    THIS_NS:.branch.office.mynode
    LOCAL:.loc.mynode

    Local fullnames always start with the reserved namespace
    nickname "local".  DECdns namespace nicknames will vary.