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Alignment Errors
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The number of frames received on this interface that were not of integral length and did not pass the FCS check. The count is incremented when the Alignment Error status is returned by the MAC service to the LLC, or other MAC user. Frames with multiple errors are counted exclusively.
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FCS Errors
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The number of frames received on this interface that failed the FCS health check because of length. The count is incremented when the Frame Check Error status is returned by the MAC service to the LLC, or other MAC user. Frames with multiple errors are counted exclusively.
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Internal MAC Transmission Errors
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The number of frames transmitted on this interface that failed because of an internal MAC sublayer transmit error. This error is only counted if it was not counted for Late Collisions, Excessive Collisions, or Carrier Sense Errors. May represent a number of transmission errors that were not otherwise recorded.
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Internal MAC Receive Errors
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The number of frames on this interface that could not be accepted because of an internal MAC sublayer error. This frame error is only counted if it was not counted for Received Frames > Maximum Length, Alignment Errors, or FCS Errors. May represent a number of transmission errors that were not otherwise recorded.
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Carrier Sense Errors
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The number of times the carrier sense condition was lost or was never asserted while attempting to transmit a frame on this interface. Incremented once per transmission attempt.
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Received Frames Exceeding Maximum Length
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The number of frames received that exceeded the maximum frame size on this interface. The count is incremented when the Received Frames > Maximum Length status is returned by the MAC service to the LLC, or other MAC user. Received frames that have multiple errors are counted exclusively.
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SQE Test Errors
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The number of times the SQE TEST ERROR message was generated by the PLS sublayer for this interface.
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Deferred Transmissions
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The number of frames for which the first transmission attempt was delayed because the medium was busy on this interface. Does not include frames involved in collisions.
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Single Collision Frames
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The number of successfully transmitted frames where transmission was inhibited by a single collision on this interface. A frame counted here can also be counted in the number of Unicast Packets Out, Multicasts Out, or Broadcast Out, but is not counted in the number of Multiple Collision Frames.
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Multiple Collision Frames
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A count of successfully transmitted frames where transmission was inhibited by more than one collision on this interface. A frame counted here can also be counted in the number of Unicast Packets Out, Multicasts Out, or Broadcast Out, but is not counted in the number of Single Collision Frames.
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Late Collisions
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The number of times a late collision (later than 512 bit-times into the transmission of a packet) is detected on this interface. A late collision counted here can be considered as a generic collision for other statistics. Bit-times vary per system. Example: On a 10Mbps system, 512 bit-times represents 51.2 microseconds.
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Excessive Collisions
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The number of frames in which transmission failed because of excessive collisions on this interface.
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