Nortel Networks ALTEON OS BMD00007 - Manual (Page 132)

Alteon OS Command Reference
134 „ The Statistics Menu BMD00007, November 2007
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, ifOutMul-
ticastPkts
, or ifOutBroadcastPkts, and is not counted by the
corresponding instance of the dot3StatsSingleCollision-
Frames
object.
dot3StatsLate-
Collisions
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 pur-
poses of other collision-related statistics.
dot3StatsExcessive
Collisions
A count of frames for which transmission on a particular interface fails
due to excessive collisions.
dot3StatsInternal-
MacTransmitErrors
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 dot3Stats-
CarrierSenseErrors 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.
dot3StatsFrameToo-
Longs
A count of frames received on a particular interface that exceed the maxi-
mum 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 condi-
tions obtained are, according to the conventions of IEEE 802.3 Layer
Management, counted exclusively according to the error status presented
to the LLC.
Table 5-6 Ethernet Statistics for Port (/stats/port/ether)
Statistics Description