Nortel Networks 214393-A 90Chapter 3 Configuring and graphing ports, Ethernet Errors tab fields

90Chapter 3 Configuring and graphing ports

Table 39 describes the Ethernet Errors tab fields.

Table 34 Ethernet Errors tab fields

Field	Description
AlignmentErrors	A count of frames received on a particular interface that are
	not an integral number of octets in length and do not pass
	the FCS check. The count represented by an instance of this
	object is incremented when the alignmentError status is
	returned by the MAC service to the LLC (or other MAC user).
	Received frames for which multiple error conditions occur
	are, according to the conventions of IEEE 802.3 Layer
	Management, counted exclusively according to the error
	status presented to the LLC.
FCSErrors	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. The count represented by an instance of this
	object is incremented when the frameCheckError status is
	returned by the MAC service to the LLC (or other MAC user).
	Received frames for which multiple error conditions occur
	are, according to the conventions of IEEE 802.3 Layer
	Management, counted exclusively according to the error
	status presented to the LLC.
InternalMacTransmitErrors	A count of frames for which transmission on a particular
	interface fails due to an internal MAC sublayer 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
	LateCollisions object, the ExcessiveCollisions object, or the
	CarrierSenseErrors object.
InternalMacReceiveErrors	A count of frames for which reception on a particular
	interface fails due to an internal MAC sublayer receive error.
	A frame is only counted by an instance of this object if it is
	not counted by the corresponding instance of either the
	FrameTooLongs object, the AlignmentErrors object, or the
	FCSErrors 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
	receive errors on a particular interface that are not otherwise
	counted.
CarrierSenseErrors	The number of times that the carrier sense condition was lost
	or never asserted when attempting to transmit a frame on a
	particular interface. The count represented by an instance of
	this object is incremented at most once per transmission
	attempt, even if the carrier sense condition fluctuates during
	a transmission attempt.

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