Nortel Networks 43W7774 manual 132 „ The Statistics Menu

Alteon OS Command Reference

Table 5-6Ethernet Statistics for Port (/stats/port/ether)

Statistics	Description
dot3StatsMultiple-	A count of successfully transmitted frames on a particular interface for
CollisionFrames	which transmission is inhibited by more than one collision.
	A frame that is counted by an instance of this object is also counted by the
	corresponding instance of either the ifOutUcastPkts, ifOutMul-
	ticastPkts, or ifOutBroadcastPkts, and is not counted by the
	corresponding instance of the dot3StatsSingleCollision-
	Frames object.
dot3StatsLate-	The number of times that a collision is detected on a particular interface
Collisions	later than 512 bit-times into the transmission of a packet.
	Five hundred and twelve bit-times corresponds to 51.2 microseconds on a
	10 Mbit/s system. A (late) collision included in a count represented by an
	instance of this object is also considered as a (generic) collision for pur-
	poses of other collision-related statistics.
dot3StatsExcessive	A count of frames for which transmission on a particular interface fails
Collisions	due to excessive collisions.
dot3StatsInternal-	A count of frames for which transmission on a particular interface fails
MacTransmitErrors	due to an internal MAC sub layer transmit error. A frame is only counted
	by an instance of this object if it is not counted by the corresponding
	instance of either the dot3StatsLateCollisions object, the
	dot3StatsExcessiveCollisions object, or the dot3Stats-
	CarrierSenseErrors object.
	The precise meaning of the count represented by an instance of this object
	is implementation-specific. In particular, an instance of this object may
	represent a count of transmission errors on a particular interface that are
	not otherwise counted.
dot3StatsFrameToo-	A count of frames received on a particular interface that exceed the maxi-
Longs	mum permitted frame size.
	The count represented by an instance of this object is incremented when
	the frameTooLong status is returned by the MAC service to the LLC
	(or other MAC user). Received frames for which multiple error condi-
	tions obtained are, according to the conventions of IEEE 802.3 Layer
	Management, counted exclusively according to the error status presented
	to the LLC.

132 „ The Statistics Menu 43W7774, May 2007