8101 datasheet(72/172 Pages) LSI

72 / 172 page

2-54

Functional Description

aMultipleCollisionFrames

Packets successfully transmitted after

more than one collision (ie: 2<attempt

value <16).

Equivalent to

"dot3StatsMultipleCollisionFrames"

Use Ctr. #39

aFramesReceivedOK

All packets, good only.

Equivalent to "ifInUcastPkts +

etherStatsBroadcastPkts +

etherStatsMulticastPkts"

Use Ctr. #29

and 4 and 5

aFrameCheckSequenceErrors

Packets with CRC error only.

Equivalent to "dot3StatsFCSErrors"

Use Ctr. #37

aAlignmentErrors

Packets with alignment error only.

Equivalent to

"dot3StatsAlignmentErrors"

Use Ctr. #36

aOctetsTransmittedOK

Bytes, exclusive of preamble,

in good packets only.

0b11011000

0b11011001

aFramesWithDeferredXmissions

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.

Equivalent to "dot3StatsLateCollisions"

Use Ctr. #42

aFrameAbortedDueToXSCollisions

Packets not successfully transmitted

after more than 15 collisions

(ie: attempt value=16).

Equivalent to

"dot3StatsExcessiveCollisions"

Use Ctr. #43

aFrameAbortedDueToIntMACXmit

Error

Packets with transmit FIFO underﬂow

error.

Equivalent to "ifOutDiscards"

Use Ctr. #34

Table 2.14

Counter Deﬁnition (Cont.)

Counter

Number

Counter Name

(MIB Object Name)

Counter Description

RX/TX

Deﬁnition

Size

(Bits)

Address

REGAD[7:0]

(Low/High)

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