Technical data

BLADE OS 5.0 Command Reference
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 Chapter 5: The Statistics Menu BMD00142, November 2009
dot3StatsSingleCollision
Frames
A count of successfully transmitted frames on a particular interface for
which transmission is inhibited by exactly 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
dot3StatsMultipleCollisionFrame object.
dot3StatsMultiple
CollisionFrames
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.
dot3StatsLateCollisions 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 Mbit/s 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.
dot3StatsExcessive
Collisions
A count of frames for which transmission on a particular interface fails
due to excessive collisions.
dot3StatsInternalMac
TransmitErrors
A count of frames for which transmission on a particular interface fails
due to an internal MAC sub layer 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.
Table 44 Ethernet Statistics for Port
Statistics Description