o  data link port

    Support: All

    Name of the data link port used for this circuit. Not supported
    on DA circuits.

 o  data link sdu size

    Support: All

    Maximum size, in octets, of a Data Link SDU for this circuit.
    This includes the Network layer header, but excludes the Data
    Link layer header. The value of this status is the lesser of the
    value of the characteristic manual data link sdu size and any
    limit imposed by the Data Link layer.

 o  LAN L1 id

    Support: L1,L2

    LAN ID allocated by the LAN level 1 designated router. This
    attribute is supported only if the circuit's characteristic type
    is csma-cd.

 o  LAN L2 id

    Support: L2

    LAN ID allocated by the LAN level 2 designated router. This
    attribute is supported only if the circuit's characteristic type
    is csma-cd.

 o  L1 designated router

    Support: L1,L2

    ID of the DECnet-Plus level 1 designated router on this circuit.
    This attribute is supported only if the circuit's characteristic
    type is csma-cd. If this node does not participate in the router
    election process, the value returned is 00-00-00-00-00-00.

 o  L2 designated router

    Support: L2

    ID of the DECnet-Plus level 2 designated router on this circuit.
    This attribute is supported only if the circuit's characteristic
    type is csma-cd. If this node does not participate in the router
    election process, the value returned is 00-00-00-00-00-00.

 o  phaseiv designated router

    Support: L1,L2

    ID of the Phase IV designated router on this circuit. This
    attribute is supported only if the circuit's characteristic
    type is csma-cd. If this node does not participate in the router
    election process, the value returned is 00-00-00-00-00-00.

 o  point-to-point id

    Support: L1,L2

    ID allocated to the circuit during its initialization. This
    attribute is supported only if the circuit's characteristic type
    is hdlc, ddcmp, or x25 static.

 o  state

    State of the routing circuit entity.

    Support:
    All
    off   The circuit is disabled.
    on    The circuit is enabled.

 o  uid

    Entity's unique identifier, which is generated when the entity is
    created.