8101 Datasheet, PDF (72/172 Pages) LSI Computer Systems – Gigabit Ethernet Controller

Table 2.14 Counter Definition (Cont.)
Counter Description
Counter Counter Name
Number (MIB Object Name)
RX/TX Definition
Size
(Bits)
Register
Address
REGAD[7:0]
(Low/High)
aMultipleCollisionFrames
Packets successfully transmitted after
more than one collision (ie: 2<attempt
value <16).
Equivalent to
TX
"dot3StatsMultipleCollisionFrames"
Use Ctr. #39
aFramesReceivedOK
All packets, good only.
Equivalent to "ifInUcastPkts +
etherStatsBroadcastPkts +
RX
etherStatsMulticastPkts"
Use Ctr. #29
and 4 and 5
aFrameCheckSequenceErrors
RX
Packets with CRC error only.
Equivalent to "dot3StatsFCSErrors"
Use Ctr. #37
44
aAlignmentErrors
Packets with alignment error only.
Equivalent to
RX
"dot3StatsAlignmentErrors"
32
Use Ctr. #36
aOctetsTransmittedOK
Bytes, exclusive of preamble,
TX
in good packets only.
0b11011000
0b11011001
aFramesWithDeferredXmissions
TX
Packets deferred, i.e. packets whose
transmission was delayed due to busy
medium, on first attempt only.
Equivalent to
"dot3StatsDeferredTransmissions"
Use Ctr. #41
aLateCollisions
Packets that encounter a late collision,
i.e. encountered collisions more than
512-bit times into transmitted packet.
A late collision is counted twice,
as a collision and a late collision.
TX
Equivalent to "dot3StatsLateCollisions"
Use Ctr. #42
aFrameAbortedDueToXSCollisions TX
Packets not successfully transmitted
after more than 15 collisions
(ie: attempt value=16).
Equivalent to
"dot3StatsExcessiveCollisions"
Use Ctr. #43
Packets with transmit FIFO underflow
aFrameAbortedDueToIntMACXmit
error.
45
Error
TX
Equivalent to "ifOutDiscards"
32
Use Ctr. #34
2-54
Functional Description
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