o  acknowledge timer

    Default: Supplied by profile     Value: 1-60000

    Time, in milliseconds, to wait for an acknowledgment before
    initiating recovery action. This attribute corresponds to the
    LAPB parameter T1. You can modify this characteristic only when
    the entity is disabled.

 o  holdback timer

    Default: Implementation specific    Value: 0-60000

    Delay, in milliseconds, before an acknowledgment must be sent.
    This characteristic corresponds to the LAPB parameter T2. You can
    modify this characteristic only when the entity is disabled.

 o  interface type

    Default: dte           Value: dce or dte

    Address mode for this link.

    dce   Use DCE address mode.
    dte   Use DTE address mode.

    You can modify this characteristic only when the entity is
    disabled.

 o  maximum data size

    Default: Supplied by   Value: 1-65532
    profile

    Maximum frame size, in octets, of an information field in an
    I-frame.

 o  physical line

    Default: No default    Value: Local entity name

    Name of the Physical layer and line entity over which the LAPB
    protocol is to operate. You must give this characteristic a value
    before you enable the link.

 o  poll timer

    Default: Implementation specific   Value: Supplied by profile

    Maximum period in seconds that may elapse without frames being
    exchanged on the Data Link. On expiration, an RR(P) is sent to
    elicit a response from the other end.

 o  profile

    Default: No default           Value: String

    Name of the X.25 Level 2 Profile that defines subscription
    details associated with the PSDN to which this DTE is connected.
    You cannot modify this characteristic. This characteristic is set
    by means of an argument to the create command.

 o  receive buffers (OpenVMS)

    Default: Implementation specific    Value: 1-128

    Specifies the number of receive data buffers.

 o  retry maximum

    Default: Supplied by profile       Value: 1-255

    Maximum number of times that a frame will be retransmitted
    before assuming a fatal error, at which point more drastic
    error recovery action will be attempted. This characteristic
    corresponds to the LAPB parameter N2.

 o  sequence modulus

    Default: Supplied by profile      Value: 8 or 128

    Type of sequence numbering.

    8     Use normal sequence numbering.
    128   Use extended sequence numbering.

 o  window size

    Default: Supplied by profile      Value: 1-127

    Window size for transmitting and receiving I-frames. This
    characteristic corresponds to the LAPB parameter K.