Panasonic 470 Bridge tab for graphing ports

62 Chapter 3 Conﬁguring network monitoring using Device Manager

Field Description

SingleCollisionFrames 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

MultipleCollisionFrames object.

MultipleCollisionFrames 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

SingleCollisionFrames object.

LateCollisions 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 Mb/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.

ExcessiveCollisions A count of frames for which transmission on a

particular interface fails due to excessive collisions.

Poll Interval Statistics are updated based on the poll interval.

Default: 10s

Range: None, 2s, 5s, 10s, 30s, 1m, 5m, 30m 1h

Bridge tab for graphing ports

Nortel Ethernet Switch 460/470

Conﬁguration — System Monitoring

NN47210-503 01.01 Standard

3.7 22 February 2007