Intel IXF1104 manual Rmon Additional Statistics Sheet 1, Definition of Rmon, Group 1 Statistics

Intel® IXF1104 4-Port Gigabit Ethernet Media Access Controller

Table 25. RMON Additional Statistics (Sheet 1 of 2)

				Definition of RMON
RMON Ethernet Statistics	Type	IXF1104 MAC-Equivalent	Type	Versus
Group 1 Statistics		Statistics		IXF1104 MAC
				Documentation
etherStatsindex	Integer 32	NA	NA	NA
etherStatsDataSource	Object	NA	NA	NA
	identifier
		RX Number of Frames
etherStatsDropEvents	Counter	Removed/	Counter 32	See table note 1
	32	TX Number of Frames
		Removed
				The IXF1104 MAC
				has two counters for
		RxOctetsTotalOK		receive and transmit
				that use different
	Counter	RxOctetsBad		naming conventions
etherStatsOctets			Counter 32	for the total Octets
	32	OctetsTransmittedOK
				and Octets Bad.
		OctetsTransmittedBad		These counters must
				be combined to meet
				the RMON definition
				for this statistic.
				The IXF1104 MAC
				has three counters
		RxUCPkts/TxUCPkts		for the etherStatsPkts
etherStatsPkts	Counter32	RxBCPkts/TxBCPkts	Counter 32	that must be
		RxMCPkts/TxMCPkts		combined to give the
				total packets as
				defined by the
				RMON specification.
etherStatsBroadcastPkts	Counter32	RxBCPkts/TxBCPkts	Counter 32	Same as RMON
				specification
etherStatsMulticastPkts	Counter32	RxMCPkts/TxMCPkts	Counter 32	See table note 2
				The IXF1104 MAC
				has two counters for
		RxAlignErrors		the alignment and
				CRC errors for the
etherStatsCRCAlignErrors	Counter32	RxFCSErrors	Counter 32	RX side only.
		TxCRCError		The IXF1104 MAC
				has a CRC Error
				counter for the TX
				side.
		RxRuntErrors		The IXF1104 MAC
				has two counters,
etherStatsUndersizedPkts	Counter32	RxShortErrors	Counter 32	one for Runt errors
		Rx Statistics ONLY		and one for
				ShortErrors.

NOTE: The RMON specification requires that this is, “The total number of events where packets were dropped by the probe due to a lack of resources. This number is not necessarily the number of packets dropped; it is the number of times this condition is detected." The “RX FIFO Overflow Frame Drop Counter Ports 0 - 3 ($0x594 – 0x597)" and “TX FIFO Overflow Frame Drop Counter Ports 0 - 3 ($0x621 – 0x624)" in the IXF1104 MAC support this and increment when either an RX FIFO or TX FIFO overflows. If any IXF1104 MAC programmable packet filtering is enabled, the “RX FIFO Errored Frame Drop Counter Ports 0 - 3 ($0x5A2 - 0x5A5)" and “TX FIFO Errored Frame Drop Counter Ports 0 - 3 ($0x625 – 0x629)" increment with every frame removed in addition to the existing frames counted due to FIFO overflow.

81 Datasheet

Document Number: 278757

Revision Number: 009

Revision Date: 27-Oct-2005