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.