Panasonic 470 RMON events

106 Chapter 6 Conﬁguring RMON using Device Manager

Field Description

FallingThreshold A threshold for the sampled statistic. When the current sampled value is less

than or equal to this threshold, and the value at the last sampling interval was

greater than this threshold, a single event is generated. A single event is

also generated after this entry becomes valid if the first sample is less than

or equal to this threshold and the associated alarmStartupAlarm is equal to

fallingAlarm(2) or risingOrFallingAlarm(3). After a falling event is generated,

another such event is not generated until the sampled value rises above this

threshold and reaches the alarmRisingThreshold.

FallingEventInde

xThe index of the eventEntry used when a falling threshold is crossed. The

eventEntry identified by a particular value of this index is the same as identified

by the same value of the eventIndex object. If there is no corresponding entry

in the eventTable, then no association exists. In particular, if this value is zero,

no associated event is generated, because zero is not a valid event index.

Owner The network management system that created this entry.

Status The status of this alarm entry.

RMON events

RMON events and alarms work together to notify you when values in your

network are outside of a speciﬁed range. When values pass the speciﬁed

ranges, the alarm is triggered and ﬁres. The event speciﬁes how the activity

is recorded.

An event speciﬁes whether a trap, a log, or a trap and a log is generated

to view alarm activity. When RMON is globally enabled, two default events

are generated:

•RisingEvent

•FallingEvent

The default events specify that when an alarm goes out of range, the ﬁring

of the alarm is tracked in both a trap and a log. For example, when an alarm

ﬁres at the rising threshold, the rising event speciﬁes that this information

be sent to both a trap and a log. Likewise, when an alarm passes the

falling threshold, the falling eventspeciﬁes that this information be sent to

a trap and a log.

To viewa table of events:

Step Action

1From the Device Manager main menu, choose Rmon > Alarms.

Nortel Ethernet Switch 460/470

Conﬁguration — System Monitoring

NN47210-503 01.01 Standard

3.7 22 February 2007