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.

    test  [node node-id] mop client client-name -
          sap octet [,optional arguments...]

    If an Address and Circuit are not supplied by the MOP client
    database, then that information must be provided in the command:

    test  [node node-id] mop client client-name -
          circuit circuit-name, -
          address lan-address, -
          sap octet [,optional arguments...]

    Examples:

    test mop client lamchp sap ff

    test mop client lamchp circuit fddi-1, -
           address AA-00-04-00-34-56, sap 55