Every DECdns entity has attributes, which are pieces or sets of
 data associated with that entity. You can use any combination of
 attribute specifiers in any sequence in a single command. Use a
 comma to separate specifiers. If you do not supply any attribute
 specifier, the command displays all attributes and their values. The
 following are descriptions of valid clearinghouse attributes:

 CHARACTERISTICS

 DNS$ACS

 Specifies the access control set for the clearinghouse.

 DNS$CHCTS

 Specifies the time at which the clearinghouse was created.

 DNS$CHLastAddress

 Specifies the current reported network address of the clearinghouse.

 DNS$CHUpPointers

 Specifies pointers to clearinghouses that contain replicas closer
 to the root than those in this clearinghouse. If the attribute
 has no values, either this clearinghouse stores a replica of the
 root directory, or it has not yet obtained the necessary up-pointer
 information from other clearinghouses.

 DNS$NSCTS

 Specifies the creation timestamp of the namespace of which the
 clearinghouse is a part.

 DNS$NSNickname

 Specifies the nickname of the namespace of which the clearinghouse
 is a part.

 DNS$UTS

 Specifies the timestamp of the most recent update to an attribute of
 the clearinghouse.

 IDENTIFIER

 DNS$CHName

 Specifies the full name of the clearinghouse.

 STATUS ATTRIBUTES

 DNS$CHDirectories

 Specifies the full name and creation timestamp (CTS) of every
 directory that has a replica in this clearinghouse.

 DNS$CHState

 Specifies the state of the clearinghouse.

 Broken     The clearinghouse has a fatal error condition.
 Initial    The clearinghouse is in the process of initializing.
 Off        The clearinghouse is not available.
 On         The clearinghouse is running and available.
 Shut       The clearinghouse is in the process of an orderly
            shutdown.