8101 datasheet(71/172 Pages) LSI

71 / 172 page

Counters

2-53

dot3StatsLateCollisions

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.

Since controller is Full Duplex only,

this counter is undeﬁned.

0b11010010

0b11010011

dot3StatsExcessiveCollisions

Packets not successfully transmitted

after more than 15 collisions

(ie: attempt value=16).

Since controller is Full Duplex only,

this counter is undeﬁned.

0b11010100

0b11010101

dot3StatsInternalMacTransmitErrors

Packets with transmit FIFO underﬂow

error.

Equivalent to "ifOutDiscards"

Use Ctr. #34

dot3StatsCarrierSenseErrors

Carrier sense dropout errors, i.e.

number of times that carrier sense is

not asserted or deasserted during

packet transmission, without a collision.

This counter is only incremented once

per packet, regardless of the number of

dropout errors in the packet.

There is no CRS loopback in 8B10B

Ethernet, so this counter is undeﬁned.

0b11010110

0b11010111

dot3StatsFrameTooLongs

Packets of length > Max_Packet_Length

with no other errors.

Equivalent to "etherStatsOversizePkts"

Use Ctr. #8

dot3StatsInternalMacReceiveErrors

Packets with receive FIFO overﬂow

error.

Equivalent to "etherStatsDropEvents"

Use Ctr. #1

Ethernet MIB

(IEEE 802.3z Clause 30)

aFramesTransmittedOK

All packets, good only.

Equivalent to

"etherStatsPkts_TX - ifOutErrors"

Use Ctr.

#19 through

aSingleCollisionFrames

Packets successfully transmitted after

one and only one collision (ie: attempt

value = 2).

Equivalent to

"dot3StatsSingleCollisionFrames"

Use Ctr. #38

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)

8101 Datasheet(PDF) 71 Page - LSI Computer Systems

8101 Datasheet(HTML) 71 Page - LSI Computer Systems

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL