User manual

C HAPTER 15 | Basic Administration Protocols
Remote Monitoring
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ES-2000 Series
value crosses the opposite bounding threshold and then back across the
trigger threshold.
COMMAND USAGE
◆ If an alarm is already defined for an index, the entry must be deleted
before any changes can be made.
PARAMETERS
These parameters are displayed:
◆ Index – Index to this entry. (Range: 1-65535)
◆ Variable – The object identifier of the MIB variable to be sampled.
Only variables of the type etherStatsEntry.n.n may be sampled.
Note that etherStatsEntry.n uniquely defines the MIB variable, and
etherStatsEntry.n.n defines the MIB variable, plus the etherStatsIndex.
For example, 1.3.6.1.2.1.16.1.1.1.6.1 denotes
etherStatsBroadcastPkts, plus the etherStatsIndex of 1.
◆ Interval – The polling interval. (Range: 1-31622400 seconds)
◆ Sample Type – Tests for absolute or relative changes in the specified
variable.
■
Absolute – The variable is compared directly to the thresholds at
the end of the sampling period.
■
Delta – The last sample is subtracted from the current value and
the difference is then compared to the thresholds.
◆ Rising Threshold – If the current value is greater than or equal to the
rising threshold, and the last sample value was less than this threshold,
then an alarm will be generated. After a rising event has been
generated, another such event will not be generated until the sampled
value has fallen below the rising threshold, reaches the falling
threshold, and again moves back up to the rising threshold.
(Range: 1-65535)
◆ Rising Event Index – The index of the event to use if an alarm is
triggered by monitored variables reaching or crossing above the rising
threshold. If there is no corresponding entry in the event control table,
then no event will be generated. (Range: 1-65535)
◆ Falling Threshold – If the current value is less than or equal to the
falling threshold, and the last sample value was greater than this
threshold, then an alarm will be generated. After a falling event has
been generated, another such event will not be generated until the
sampled value has risen above the falling threshold, reaches the rising
threshold, and again moves back down to the failing threshold.
(Range: 1-65535)
◆ Falling Event Index – The index of the event to use if an alarm is
triggered by monitored variables reaching or crossing below the falling