The thresholds against which the monitored values are
compared.
An RMON alarm can also identify a specific eventTable entry to be triggered when a threshold is crossed.
Configuration and operational values are defined
in alarmTable in RFC 2819. Additional operational values
are defined in Juniper Networks enterprise-specific extensions to alarmTable (jnxRmonAlarmTable).
alarmTable in the RMON MIB allows you
to monitor and poll the following:
alarmIndex—The index value for alarmTable that identifies a specific entry.
alarmInterval—The interval, in seconds,
over which data is sampled and compared with the rising and falling
thresholds.
alarmVariable—The MIB variable that is
monitored by the alarm entry.
alarmSampleType—The method of sampling
the selected variable and calculating the value to be compared against
the thresholds.
alarmValue—The value of the variable during
the last sampling period. This value is compared with the rising and
falling thresholds.
alarmStartupAlarm—The alarm sent when the
entry is first activated.
alarmRisingThreshold—The upper threshold
for the sampled variable.
alarmFallingThreshold—The lower threshold
for the sampled variable.
alarmRisingEventIndex—The eventTable entry used when a rising threshold is crossed.
alarmFallingEventIndex—The eventTable entry used when a falling threshold is crossed.
alarmStatus—Method for adding and removing
entries from the table. It can also be used to change the state of
an entry to allow modifications.
Note:
If this object is not set to valid, no
action will be taken by the associated event alarm.
jnxRmonAlarmTable
The jnxRmonAlarmTable is a Juniper Networks enterprise-specific
extension to alarmTable. It provides additional operational
information and includes the following objects:
jnxRmonAlarmGetFailCnt—The number of times
the internal Get request for the variable monitored by this
entry has failed.
jnxRmonAlarmGetFailTime—The value of sysUpTime when an internal Get request for the variable
monitored by this entry last failed.
jnxRmonAlarmGetFailReason—The reason an
internal Get request for the variable monitored by this entry
last failed.
jnxRmonAlarmGetOkTime—The value of sysUpTime when an internal Get request for the variable
monitored by this entry succeeded and the entry left the getFailure state.
jnxRmonAlarmState—The current state of
this RMON alarm entry.
