Unless stated otherwise, counts include both normal and multicast
traffic and all protocol types, service access points (SAPs), and
protocol identifiers.
o abort delimiter sent
Number of times an abort delimiter was sent while transmitting.
o auto-removal failures
Number of times a failure during the beacon auto-removal process
was detected and the station removed itself from the ring.
o burst errors
Number of times a lack of transitions was detected on the physical
media.
o creation time
Time at which the station entity was created.
o explorer frames received
Number of SR explorer frames received by the source route entities.
o explorer frames sent
Number of source routing (SR) explorer frames sent by the
source route entities.
o frame copied errors
Number of individually addressed frames received with
the Address Recognized status bit = 1.
o frequency errors
Number of times an error was detected in the incoming signal
frequency.
o insertion failures
Number of times that a ring insertion operation has failed.
o internal errors
Number of times a recoverable internal error was recognized.
o line errors
Number of times a CRC error or a non-data symbol in a frame or
token with the E bit = 0 was detected.
o lobe wire faults
Number of times an open or shorted lobe data path was detected and
the station removed itself from the ring.
o lost frames
Number of times this station has transmitted a frame and has
failed to receive it for stripping before the Timer Return
to Repeat (TRR) timer expired.
o multicast octets received
Number of octets successfully received in multicast frames of type
LLC. (The count does not include the MAC envelope.)
o multicast octets sent
Number of octets successfully sent in multicast frames of type LLC.
(The count does not include the MAC envelope.)
o multicast pdus received
Number of multicast frames successfully received of type LLC.
o multicast pdus sent
Number of multicast frames successfully sent of type LLC.
o octets received
Number of octets successfully received in frames of type LLC.
o octets sent
Number of octets successfully sent in frames of type LLC.
o pdus received
Number of frames successfully received of type LLC.
o pdus sent
Number of frames successfully sent of type LLC.
o receive data overruns
Number of times a frame was lost due to system or adapter
transfer failure.
o receiver congestions
Number of frames recognized as matching one of this station's
individual, group, or functional addresses, but could not
be received for lack of buffers in the adapter.
o remove frames received
Number of times a remove MAC frame has been received and the
station removed itself from the ring.
o ring beaconings
Number of times the condition of receiving or transmitted Beacon
frames was detected due to a hard error.
o ring failures
Number of times the station left the ring due to failure.
o ring recoveries
Number of times detected the ring is in the monitor contention
process. Indicates that the ring has attempted to recover from a
soft error problem.
o ring poll errors
Number of times an error was detected in the A&C bits
during the ring poll process.
o route discovery failures
Number of times the route discovery process failed to find a route
to another station.
o selftest failures
Total number of times a self-test of the station detected an
error.
o signal losses
Number of times detected loss of signal on the physical media.
o single station conditions
Number of times detected being the only station in the ring.
o soft error reports sent
Number of times sent a report error MAC frame to the ring error
monitor.
o unavailable station buffers
Number of times a frame was discarded because no station level
buffers were available.
o unavailable user buffers
Number of times a frame was discarded because no user
buffer was available.
o unrecognized individual destination pdus
Number of times a received individually addressed LLC frame was
discarded because there was no data link port with a matching SAP,
SNAP PID, or Ethernet protocol type.
o unrecognized multicast destination pdus
Number of times a received LLC frame addressed to an enabled
group or functional address was discarded because there was no
data link port with a matching SAP, SNAP PID, or Ethernet protocol
type.
o token error
Number of times when this station (when Active Monitor (AM)) has
transmitted a new token due to errors on the ring.
o transmit failures
Number of times a transmit error, other than underrun occurred.
Transmit error reasons can be tracked by event reasons, or by
observing other 802.5 counters.
o transmit underruns
Number of times a transmit underrun occurred.
o transmitting beacons
Number of times initiated transmitting beacon frames.