A MOP Circuit entity is a data link circuit on which MOP services are
   available. The status attribute functions specifies the services enabled
   on the circuit.

1  –  character

     KNOWN CLIENTS ONLY
         Default: False                            Value: Boolean

         Specifies whether MOP attempts to service load requests from remote
         systems which do not have a corresponding client entity. Some network
         servers are designed to request specific software by name, and in such
         a case there is no need for a client entity to exist. By default, MOP
         tries to process requests for named software from unknown clients. Set
         this attribute to true if you wish MOP to ignore such requests.

     LINK NAME
         Default: No Name                         Value: Data Link entity name

         Name of a station entity in the Data Link layer module indicated by
         the type characteristic. This name is passed to the Data Link layer
         module when MOP opens a portal for the circuit.

     RETRANSMIT TIMER
         Default: 4                               Value: 1-30

         Time, in seconds, to wait for a response before retransmitting a MOP
         protocol message.

     TYPE

         Specifies the circuit type. This characteristic is set when the
         circuit is created see the create command. The possible types are
         CSMA-CD, FDDI, HDLC OSF/1 loop only, DDCMP OpenVMS only, and LAPB
         OpenVMS only. You cannot modify this characteristic.

2  –  counters

     DUMP REQUESTS COMPLETED

         Number of dump service requests that completed successfully.

     FAILED DUMP REQUESTS

         Number of dump service requests that could not be completed.

     FAILED LOAD REQUESTS

         Number of load service requests that could not be completed.

     LOAD REQUESTS COMPLETED

         Number of load service requests that completed successfully.

     UNRECOGNIZED DUMP CLIENTS

         Number of dump service requests that could not be processed because a
         required client database entry could not be found.

     UNRECOGNIZED LOAD CLIENTS

         Number of load service requests that could not be processed because a
         required client database entry could not be found.

3  –  status

     FUNCTIONS

         Which optional MOP functions are currently enabled for this circuit.