1  query 

2  mop

3  circuit

   Initiates an XID exchange between the system specified by node-
   id and the system specified by the arguments or a client. 

   query  [node node-id] mop circuit circuit-name -
           address lan-address [,sap octet]

   The Address information is required.  If Address is not specified
   in the command, then a Client must be specified which can supply
   the address information.  

   query [node node-id] mop circuit circuit-name -
           client client-name [,sap octet]

   SAP is an optional argument for the query mop circuit command.
   The optional SAP argument specifies the Service Access Point on
   the target system to which the XID message is to be sent.  SAP is
   an octet (00-FF).  The default SAP is 00.  

   The query requester function must be enabled on the MOP Circuit
   to perform the query operation.  You may enable this function 
   using: 

   enable mop circuit circuit-name function {query requester}


   Examples:

   query mop circuit csmacd-1 address 08-00-2b-45-77-ED

   query mop circuit csmacd-1 -
       client lamchp ! Client lamchp has the Address.

4  Exception_Messages
 
o  data link error

   An error was reported by the Data Link layer.  Ascertain that 
   the query requester function is enabled on the MOP circuit.

 
o  unrecognized client

   There is no client with the specified identification.
 

o  unrecognized circuit

   There is no circuit with the specified identification.

 
o  timeout

   Operation has timed out on the loop command.


o  entity class not supported (OpenVMS)

   MOP is not registered with EMAA.  The NET$MOP process is 
   probably not started.  For instructions on how to restart the 
   MOP process, refer to HELP NETWORK_MANAGEMENT MOP.

3  client

   Initiates an XID exchange between the system specified by node-id 
   and the client.  

   query  [node node-id] mop client client-name [,sap octet]

   The Address and Circuit information is required.  If the Client
   cannot provide that information, then it must be supplied in the
   command.

   query [node node-id] mop client client-name -
         address lan-address, -
         circuit circuit-name [,sap octet]

   The optional SAP argument specifies the Service Access Point on
   the target system to which the XID message is to be sent.  SAP is
   an octet (00-FF).  The default SAP is 00.  

   The query requester function must be enabled on the MOP Circuit
   to perform the query operation.  You may enable this function 
   using: 

   enable mop circuit circuit-name function {query requester}


   Examples: 

   query mop client lamchp -       ! Client provides the Circuit.
         address 08-00-2b-34-09-FF

   query mop client lamchp -       ! Client provides the Address.
         circuit csmacd-1 


4  Exception_Messages
 
o  data link error

   An error was reported by the Data Link layer.  Ascertain that 
   the query requester function is enabled on the MOP circuit.

 
o  unrecognized client

   There is no client with the specified identification.
 

o  unrecognized circuit

   There is no circuit with the specified identification.

 
o  timeout

   Operation has timed out on the loop command.


o  entity class not supported (OpenVMS)

   MOP is not registered with EMAA.  The NET$MOP process is 
   probably not started.  For instructions on how to restart 
   the MOP process, refer to HELP NETWORK_MANAGEMENT MOP.