
102
Functional Operation
Chapter 3
AMD-8111 HyperTransport I/O Hub Data Sheet
24674
Rev. 3.00
April 2003
AMD Preliminary Information
3.10.7.2
Transmit Statistics Counters
Table 28 on page 102 describes the statistics counters associated with the transmitter and lists the
MIB objects that these counters support.
The Address column gives the value that the host CPU must write to the MIB_ADDR register in
order to read the counter.
Table 28.
Transmit Statistics Counters
Addres
s (hex)
20
Transmit Counter
Name
XmtUnderrunPkts
MIB Object Supported
Description of Counter/Comments
RMON etherStatsDropEvents
RMON etherHistoryDropEvents
MIB-II ifOutDiscards
E-like
dot3StatsInternalMacTranmsitErrors
RMON etherStatsOctets
RMON etherHistoryOctets
RMON hostOutOctets
RMON hostTimeOutOctets
MIB-II IfOutOctets
RMON etherStatsPkts
RMON etherHistoryPkts
RMON hostOutPkts
RMON hostTimeOutPkts
BRIDGE-MIB
dot1dTpPortOutFrames
RMON etherStatsBroadcastPkts
RMON etherHistoryBroadcastPkts
RMON hostOutBroadcastPkts
RMON hostTimeOutBroadcastPkts
EXT-MIB-II ifOutBroadcastPkts
RMON etherStatsMulticastPkts
RMON etherHistoryMulticastPkts
RMON hostOutMulticastPkts
RMON hostTimeOutMulticastPkts
EXT-MIB-II ifOutMulticastPkts
RMON etherStatsCollisions
RMON etherHistoryCollisions
The number of times a packet was
dropped due to transmit FIFO
underrun.
21
XmtOctets
The total number of octets of data
transmitted. This does not include the
preamble but does include the FCS
bits. The XmtOctets counter is
incremented whenever the transmitter
transmits an octet.
22
XmtPackets
The number of packets transmitted.
This does not include packets
transmitted with errors (i.e., collision
fragments and partial packets due to
transmit FIFO under runs).
23
XmtBroadCastPkts
The number of valid frames transmitted
that are addressed to a broadcast
address. This counter does not include
errored broadcast packets or valid
multicast packets.
24
XmtMultiCastPkts
The number of valid frames transmitted
that are addressed to a multicast
address. This counter does not include
errored multicast packets or valid
broadcast packets.
25
XmtCollisions
The number of collisions that occur
during transmission attempts.
Collisions that occur while the device is
not transmitting (i.e., receive collisions)
are not identi
fi
able and therefore not
counted.