The CIRCUITS class contains information about the virtual circuits on a
  system.  This class includes fields such as local port name, remote port
  type and number, number of connections on the circuit, circuit state, etc.

1  –  CABLE_STATUS

  Status of the CI circuit paths A and B. Crossed cables are also noted.
  The field applies only to the CI. Possible displays are:

                      -       Paths A and B are bad.
                     A-       Path A is good.
                      -B      Path B is good.
                     A-B      Paths A and B are good.
                     CROSSED  Cables are crossed.

2  –  CIR_STATE

   State of the virtual circuit. Possible displays are:

                     CLOSED   Circuit is closed.
                     OPEN     Circuit is open.
                     ST_REC   Circuit has a start received.
                     ST_SENT  Circuit has a start sent.

3  –  LD_CLASS

   The circuit's current capacity rating.

4  –  LPORT_NAME

   Device name of the local port associated with the circuit
   (PAA0, PAB0, PEA0).

5  –  MGT_PRIORITY

   Priority value assigned to the circuit by management action.

6  –  NUM_CONNECTIONS

   Number of connections on the circuit between the local and
   remote systems.

7  –  PRIORITY

   Circuit's current priority, which is the sum of the management
   priorities assigned to the circuit and the associated local port.

8  –  REM_STATE

   State of the remote port. Possible displays are:

     DISAB    Remote port is disabled.
     ENAB     Remote port is enabled.
     M_DISAB  Remote port is in maintenance mode and is disabled.
     M_ENAB   Remote port is in maintenance mode and is enabled.
     M_UNINIT Remote port is in maintenance mode and has not been
              initialized.
     UNINIT   Remote port has not been initialized.

9  –  RP_FUNCTIONS

   Function mask of the remote port.

10  –  RPORT_NUM

   Port number of the remote port associated with the circuit.
   The field applies only to CI.

11  –  RP_OWNER

   Port number of the remote port owner.

12  –  RP_REVISION

   Hardware or microcode revision number of the remote port.

13  –  RP_TYPE

   Type of remote port associated with the circuit. Examples of some
   possible types might include: CIMNA, KFMSA, SHAC, SII, BVPSSP (a
   BVP storage systems port), CI780, CI750, CIBCA-A and CIBCA-B, RF
   and TF devices (for example RF73 or TF85), HSC devices (for example,
   HSC65 or HSC90), Ethernet, PASSTH (port is in passthrough mode),
   and so on.

14  –  SCS_WAITERS

   Number of connections waiting to send SCS control messages on the
   virtual circuit.