/sys$common/syshlp/NCLHELP.HLB  —  Event Messages, lapb_link
 o  buffer unavailable error (OpenVMS)

    Generated when a frame is discarded because there is no buffer
    available.

 o  frmr received

    Generated when an FRMR (frame reject) frame is received from the
    remote station.   Arguments:

    frmr        Contents of the header of the FRMR frame.

    frmr        Reason why the FRMR frame was generated. See possible
    reason      reasons described under the frame reject generated
                event.

 o  frmr sent

    Generated when the receipt of a frame causes an FRMR (frame
    reject) frame to be generated and transmitted to the remote
    station. Arguments:

    received    Header of the frame that caused the event to be
    pdu         generated.

    frmr        Contents of the generated FRMR frame.

    frmr        Reason why the FRMR frame was generated.
    reason
                control      A received control field is either
                             undefined or is not implemented.

                format       The received control field is invalid
                             either because the frame contained an
                             unallowed information field, or because
                             the frame is a supervisory or unnumbered
                             frame of incorrect length.

                length       The received information field is longer
                             than the maximum established capacity.

                nonspecific  The received frame has an unspecified
                             number or types of errors.

                nr           The received control field contains an
                             invalid N(R).

 o  link halted

    Generated when the status attribute protocol state is set to
    halted.  Argument:

    link        Reason why the LAPB protocol entered the halted
    halted      state.
    reason
                disc           Link halt caused by remote end.

                dm             Link halt caused by remote end.

                fbit error     Link halt caused by remote end.

                frmr           Link halt caused by remote end.

                implementation Link halt caused by implementation-
                specific       specific error.

                local          Link halt due to local management
                               action.

                maximum        Link halt due to the number of retries
                retry          reaching the maximum specified in the
                               characteristic retry maximum.

                physical       Link halt due to failure of the Physical
                               Layer.

                unsolicited ua Link halt caused by remote end.

                user           Initialization was result of local user
                               action.

                window         Link halt caused by remote end.
                error

 o  link initializing

    Generated when the protocol has been successfully initialized or
    reinitialized.  Argument:

    link ini-   Reason why the LAPB protocol entered the initializing
    tializing   state.
    reason
                The reasons are the same as described for the link
                halted reason argument for the link halted event.

 o  link inoperative

    Generated when the status attribute protocol state is set to
    inoperative.

 o  link maintenance

    Generated when the status attribute protocol state is set to
    maintenance.

 o  link resetting

    Generated when the LAPB protocol is being successfully reset.
    Argument:

    link        Reason why the link is resetting.
    resetting
    reason
                fbit error     Link reset caused by remote end.

                frmr           Link reset caused by remote end.

                implementation Link reset is due to implementation-
                specific       specific error.

                maximum        Link reset due to the number of retries
                retry          reaching the value specified in the
                               characteristic retry maximum.

                sabm           Link reset caused by remote end.

                unsolicited ua Link reset caused by remote end.

                window         Link reset caused by remote end.
                error

 o  link running

    Generated when the LAPB protocol has been successfully
    initialized and the status attribute protocol state has been
    set to running.

 o  link setup failed

    Generated when the LAPB protocol has failed to initialize
    correctly after the maximum number of allowed attempts.

 o  link state changed

    Generated for each link state transition. The link state shows
    the new link state.  Argument:

    final state      The new setting of the state attribute (on or off).

 o  pdu receive overrun

    Generated each time the underlying physical layer indicates that
    a receive overrun has been detected.

 o  pdu transmit failed

    Generated when a call to transmit a frame at the Physical layer
    via the internal framing interface fails.  Argument:

    pdu         Failure reason returned by the Physical layer.
    transmit
    failure
    reason
                disabled     The line has been disabled by network
                             management action.

                line down    The line is in the failed state.

                no service   The Physical layer service is not
                             available.
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