Accton Technology 24/48-Port, ES4548D manual Port Statistics, Etherlike Statistics, Rmon Statistics

		Showing Port Statistics 16
	Table 16-1 Port Statistics (Continued)
Parameter		Description
Transmit Discarded Packets		The number of outbound packets which were chosen to be discarded even
		though no errors had been detected to prevent their being transmitted.
		One possible reason for discarding such a packet could be to free up
		buffer space.
Transmit Errors		The number of outbound packets that could not be transmitted because of
		errors.
Etherlike Statistics
Alignment Errors		The number of alignment errors (missynchronized data packets).
Late Collisions		The number of times that a collision is detected later than 512 bit-times
		into the transmission of a packet.
FCS Errors		A count of frames received on a particular interface that are an integral
		number of octets in length but do not pass the FCS check. This count does
		not include frames received with frame-too-long or frame-too-short error.
Excessive Collisions		A count of frames for which transmission on a particular interface fails due
		to excessive collisions. This counter does not increment when the
		interface is operating in full-duplex mode.
Single Collision Frames		The number of successfully transmitted frames for which transmission is
		inhibited by exactly one collision.
Internal MAC Transmit Errors		A count of frames for which transmission on a particular interface fails due
		to an internal MAC sublayer transmit error.
Multiple Collision Frames		A count of successfully transmitted frames for which transmission is
		inhibited by more than one collision.
Carrier Sense Errors		The number of times that the carrier sense condition was lost or never
		asserted when attempting to transmit a frame.
SQE Test Errors		A count of times that the SQE TEST ERROR message is generated by the
		PLS sublayer for a particular interface.
Frames Too Long		A count of frames received on a particular interface that exceed the
		maximum permitted frame size.
Deferred Transmissions		A count of frames for which the first transmission attempt on a particular
		interface is delayed because the medium was busy.
Internal MAC Receive Errors		A count of frames for which reception on a particular interface fails due to
		an internal MAC sublayer receive error.
RMON Statistics
Drop Events		The total number of events in which packets were dropped due to lack of
		resources.
Jabbers		The total number of frames received that were longer than 1518 octets
		(excluding framing bits, but including FCS octets), and had either an FCS
		or alignment error.
Received Bytes		Total number of bytes of data received on the network. This statistic can
		be used as a reasonable indication of Ethernet utilization.
Collisions		The best estimate of the total number of collisions on this Ethernet
		segment.

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