Library /sys$common/syshlp/NET$MGMT_HELP.HLB  —  LAPB  LINK  character
    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.

    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.

    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.

    MAXIMUM DATA SIZE
       Default:  Supplied by profile                    Value:  1--65532

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

    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.

    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.

    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.

    RECEIVE BUFFERS
       Default:  Implementation specific               Value:  1--128

       Specifies the number of receive data buffers.

    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.

    SEQUENCE MODULUS
       Default:  Supplied by profile                   Value:  8 or 128

       Type of sequence numbering.

         8    - Use normal sequence numbering.

         128  - Use extended sequence numbering.

    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.
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