H3C SR6600 Command Reference Manual page 155

Default command level
2: System level
Parameters
entry-number: Specifies the index of a private alarm entry, in the range of 1 to 65535.
prialarm-formula: Configures a private alarm variable formula, a string of 1 to 256 characters. The
variables in the formula must be represented in OID format that starts with a dot (.), the formula
(.1.3.6.1.2.1.2.1.10.1)*8 for example. You can customize the formula and perform the basic operations of
addition, subtraction, multiplication, and division on these variables. The operations should yield a long
integer. To prevent errors, make sure the result of each calculating step falls into the value range for long
integers.
prialarm-des: Private alarm entry description, a string of 1 to 127 characters.
sampling-interval: Sets the sampling interval in the range of 10 to 65535 seconds.
absolute | changeratio | delta: Sets the sampling type to absolute, delta, or change ratio. Absolute
sampling is to obtain the value of the variable when the sampling time is reached. Delta sampling is to
obtain the variation value of the variable during the sampling interval when the sampling time is reached.
Change ratio sampling is not supported at present.
rising-threshold threshold-value1 event-entry1: Sets the rising threshold, where threshold-value1
represents the rising threshold in the range of –2147483648 to +2147483647, and event-entry1
represents the index of the event triggered when the rising threshold is reached. The value range for the
event-entry1 argument is 0 to 65535, where 0 means no corresponding event is triggered and no event
action is taken when an alarm is triggered.
falling-threshold threshold-value2 event-entry2: Sets the falling threshold, where threshold-value2
represents the falling threshold in the range of –2147483648 to +2147483647 and event-entry2
represents the index of the event triggered when the falling threshold is reached. The value range for the
event-entry2 argument is 1 to 65535.
forever: Indicates that the lifetime of the private alarm entry is infinite.
cycle cycle-period: Sets the lifetime period of the private alarm entry, in the range of 0 to 2147483647
seconds.
owner text: Specifies the entry owner, a case-sensitive string of 1 to 127 characters that can contain
spaces.
Usage guidelines
Before creating an alarm entry, use the rmon event command to define the events to be referenced in the
event table.
You cannot create an entry that has the same alarm variable formula (prialarm-formula), sampling type
(absolute, changeratio, or delta), rising threshold (threshold-value1), and falling threshold
(threshold-value2) as an existing private alarm entry.
You can create up to 50 private alarm entries.
The system handles private alarm entries as follows:
1. Samples the private alarm variables in the private alarm formula at the specified sampling interval.
2. Performs calculation on the sampled values with the formula.
3. Compares the calculation result with the predefined thresholds and does the following:
If the result is equal to or greater than the rising threshold, triggers the event specified by the
event-entry1 argument.
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