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

A count of frames that are involved in a single collision, and are

 

 

 

 

Frames

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

A count of frames that are involved in more than one collision and

 

 

 

 

Frames

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

 

 

 

 

 

 

 

 

 

 

 

 

 

IP DSLAM

 

 

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