HP 445860-B21 - 10Gb Ethernet BL-c Switch Command Reference Manual page 81

Table 48 Ethernet statistics for port
Statistics
dot3StatsMultipleCollisionFrames
dot3StatsLateCollisions
dot3StatsExcessiveCollisions
dot3StatsInternalMacTransmitErrors
dot3StatsFrameTooLongs
Description
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, and is not counted by the
corresponding instance of the
dot3StatsSingleCollisionFrames object.
The number of times that a collision is detected on a particular
interface later than 512 bit-times into the transmission of a packet.
Five hundred and twelve bit-times corresponds to 51.2
microseconds on a 10 Mbps system. A (late) collision included in
a count represented by an instance of this object is also
considered as a (generic) collision for purposes of other collision-
related statistics.
A count of frames for which transmission on a particular interface
fails due to excessive collisions.
A count of frames for which transmission on a particular interface
fails due to an internal MAC sublayer transmit error.
A frame is only counted by an instance of this object if it is not
counted by the corresponding instance of either the
dot3StatsLateCollisions object, the
dot3StatsExcessiveCollisions object, or the
dot3StatsCarrierSenseErrors object.
The precise meaning of the count represented by an instance of
this object is implementation specific. In particular, an instance of
this object may represent a count of transmission errors on a
particular interface that are not otherwise counted.
A count of frames received on a particular interface that exceeds
the maximum permitted frame size.
The count represented by an instance of this object is incremented
when the frameTooLong status is returned by the MAC service to
the LLC (or other MAC user).
Received frames for which multiple error conditions obtained are,
according to the conventions of IEEE 802.3 Layer Management,
counted exclusively according to the error status presented to the
LLC.
Statistics Menu
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