Command Manual – SNMP and RMON
Quidway S3900 Series Ethernet Switches-Release 1510
Chapter 2 RMON Configuration Commands
Huawei Technologies Proprietary
2-14
Use the
undo rmon prialarm
command to remove a specified extended alarm entry.
Note:
z
Before adding an extended alarm entry, you need to use the
rmon event
command
to define the events to be referenced by the entry.
z
Make sure the node to be monitored exists before executing the
rmon event
command.
z
You can define up to 50 extended alarm entries.
With an extended alarm entry defined in an extended alarm group, the network devices
perform the following operations accordingly:
z
Sampling the alarm variables referenced in the defined extended alarm
expressions (
prialarm-formula
) once in each period specified by the
sampling-timer
argument.
z
Performing operations on sampled values according to the defined extended
alarm expressions (
prialarm-formula
)
z
Comparing the operation result with the set thresholds and perform corresponding
operations, as described in Table 2-8.
Table 2-8
Operation result and corresponding operation
Comparison
Operation
The operation result is larger than or equal to the
set upper threshold (
threshold-value1
)
Triggering the event identified
by the
event-entry1
argument
The operation result is smaller than or equal to
the set lower threshold (
threshold-value2
)
Triggering the event identified
by the
event-entry2
argument
Example
# Add the extended alarm entry numbered 2 as follows:
z
Perform operations on the corresponding alarm variables using the expression
((1.3.6.1.2.1.16.1.1.1.4.1)*100).
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Sampling interval: 10 seconds
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Upper threshold: 50
z
Lower threshold: 5
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Event 1 is triggered when the change ratio is larger than the upper threshold.
z
Event 2 is triggered when the change ratio is less than the lower threshold.
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The alarm entry is valid forever.
z
Entry owner: user1
<Quidway> system-view
