Planet Technology IP DSLAM IDL-4801 - Manual (Page 315)

IP DSLAM 315
order to avoid a loss of information, a management station is
advised to poll the dot3HCStatsFCSErrors object for 10 Gb/s or
faster interfaces. Discontinuities in the value of this counter can
occur at e-initialization of the management system, and at other
times as indicated by the value of ifCounterDiscontinuityTime.
Single Collision
Frames
A count of frames that are involved in a single collision, and are
subsequently transmitted successfully. A frame that is counted by
an instance of this object is also counted by the corresponding
instance of the ifOutUcastPkts, ifOutMulticastPkts, or
ifOutBroadcastPkts, and is not counted by the corresponding
instance of the dot3StatsMultipleCollisionFrames object. This
counter does not increment when the interface is operating in
full-duplex mode. Discontinuities in the value of this counter can
occur at re-initialization of the management system, and at other
times as indicated by the value of ifCounterDiscontinuityTime.
Multiple Collision
Frames
A count of frames that are involved in more than one collision and
are subsequently transmitted successfully. 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. This counter does not
increment when the interface is operating in full-duplex mode.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other times as
indicated by the value of ifCounterDiscontinuityTime.
Deferred Tx Frames A count of frames for which the first transmission attempt on a
particular interface is delayed because the medium is busy. The
count represented by an instance of this object does not include
frames involved in collisions. This counter does not increment
when the interface is operating in full-duplex mode.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other times as
indicated by the value of ifCounterDiscontinuityTime.
Late Collisions The number of times that a collision is detected on a particular
interface later than one slotTime into the transmission of a
packet. 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. This counter does
not increment when the interface is operating in full-duplex mode.
Discontinuities in the value of this counter can occur at