User's Manual

Chapter 4 Setting up MultiLink Trunk ports 125
Reference for the Business Policy Switch 2000 Management Software Operations
Table 45 describes the fields in the Ethernet Errors tab.
Table 45 Ethernet Errors tab fields
Field Description
AlignmentErrors A count of frames received on a particular MLT 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 an MLT 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.
IMacTransmitError A count of frames for which transmission on a particular MLT
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.
IMacReceiveError A count of frames for which reception on a particular MLT
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 MLT. 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.