Nortel 8100 用户指南

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Appendix A RMON alarm variables
207
Configuring Network Management
 
Ethernet
dot3StatsAlignment
Errors
A count of frames received on a particular interface 
that are not an integral number of octets in length and 
do not pass the Frame Check Sequence (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 exist are, according to the conventions of 
IEEE 802.3 Layer Management, counted exclusively 
according to the error status presented to the LLC.
dot3StatsFCSErrors
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.
dot3StatsSingle
CollisionFrames
A count of successfully transmitted frames on a 
particular interface for which transmission is inhibited 
by exactly one collision. A frame that is counted by 
an instance of this object is also counted by the 
corresponding instance of either the ifOutUcastPkts 
object, the ifOutMulticastPkts object, or the 
ifOutBroadcastPkts object, and is not counted by 
the corresponding instance of the 
dot3StatsMultipleCollisionFrames object.
dot3StatsMultiple
CollisionFrames
A count of successfully transmitted frames on a 
particular interface for 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, 
ifOutMulticastPkts, or ifOutBroadcastPkts object, and 
is not counted by the corresponding instance of the 
dot3StatsSingleCollisionFrames object.
dot3StatsSQETest
Errors
A count of times that the SQE TEST ERROR 
message is generated by the PLS sublayer for a 
particular interface. The SQE TEST ERROR message 
is defined in section 7.2.2.2.4 of ANSI/IEEE 
802.3-1985 and its generation is described in section 
7.2.4.6 of the same document.
Table 65   Alarm variables (continued)
Category Subcategory
Variable
Definition