Nortel 5510 Configuration page 49

Copyright © 2005 - 2007, Nortel Networks
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Field
FCSErrors
InternalMacTransmitErrors
InternalMacReceiveErrors
CarrierSenseErrors
Nortel Ethernet Routing Switch 5500 Series
Configuration - System Monitoring
NN47200-505 03.01 Standard
5.1 27 August 2007
Graphing switch port data 49
Description
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.
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.
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.
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.