Using SNMP
SNMP Overview
OmniSwitch 6800/6850/9000 Switch Management Guide
December 2007
page 10-17
24
risingAlarm
alarmIndex
alarmVariable
alarmSample-
Type
alarmValue
alarmRisingTh-
reshold
rmon
An Ethernet statistical variable
has exceeded its rising thresh-
old. The variable’s rising thresh-
old and whether it will issue an
SNMP trap for this condition are
configured by an NMS station
running RMON.
alarmIndex
—An index that uniquely identifies an entry in the alarm table. Each such entry defines a diagnos-
tic sample at a particular interval for an object on the device.
alarmVariable
—The object identifier of the particular variable to be sampled. Only variables that resolve to an
ASN.1 primitive type of INTEGER (INTEGER, Integer32, Counter32, Counter64, Gauge, or TimeTicks) may
be sampled.
alarmSampleType
—The method of sampling the selected variable and calculating the value to be compared
against the thresholds. If the value of this object is absoluteValue (1), the value of the selected variable will be
compared directly with the thresholds at the end of the sampling interval. If the value of this object is deltaValue
(2), the value of the selected variable at the last sample will be subtracted from the current value, and the differ-
ence compared with the thresholds.
alarmValue
—The value of the statistic during the last sampling period. For example, if the sample type is
deltaValue, this value will be the difference between the samples at the beginning and end of the period. If the
sample type is absoluteValue, this value will be the sampled value at the end of the period.
alarmRisingThreshold
—A threshold for the sampled statistic. When the current sampled value is greater than
or equal to this threshold, and the value at the last sampling interval was less than this threshold, a single event
will be generated. A single event will also be generated if the first sample after this entry becomes valid is
greater than or equal to this threshold and the associated alarmStartupAlarm is equal to risingAlarm (1) or risin-
gOrFallingAlarm (3).
25
fallingAlarm
alarmIndex
alarmVariable
alarmSample-
Type
alarmValue
alarmFallingTh-
reshold
rmon
An Ethernet statistical variable
has dipped below its falling
threshold. The variable’s falling
threshold and whether it will
issue an SNMP trap for this con-
dition are configured by an NMS
station running RMON.
alarmIndex
—An index that uniquely identifies an entry in the alarm table. Each such entry defines a diagnos-
tic sample at a particular interval for an object on the device.
alarmVariable
—The object identifier of the particular variable to be sampled. Only variables that resolve to an
ASN.1 primitive type of INTEGER (INTEGER, Integer32, Counter32, Counter64, Gauge, or TimeTicks) may
be sampled.
alarmSampleType
—The method of sampling the selected variable and calculating the value to be compared
against the thresholds. If the value of this object is absoluteValue (1), the value of the selected variable will be
compared directly with the thresholds at the end of the sampling interval. If the value of this object is deltaValue
(2), the value of the selected variable at the last sample will be subtracted from the current value, and the differ-
ence compared with the thresholds.
alarmValue
—The value of the statistic during the last sampling period. For example, if the sample type is
deltaValue, this value will be the difference between the samples at the beginning and end of the period. If the
sample type is absoluteValue, this value will be the sampled value at the end of the period.
alarmFallingThreshold
—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
will be generated. A single event will also be generated if the first sample after this entry becomes valid is less
than or equal to this threshold and the associated alarmStartupAlarm is equal to fallingAlarm (2) or risingOr-
FallingAlarm (3).
26
stpNewRoot
vStpNumber
stp
Sent by a bridge that became the
new root of the spanning tree.
vStpNumber
—The Spanning Tree number identifying this instance.
No. Trap Name
Objects
Family
Description
Содержание OmniSwitch 6850 Series
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