3Com MSR 30, MSR 50 manual Table with the rmon event command, You can create up to 60 alarm entries

2322 CHAPTER 153: RMON CONFIGURATION COMMANDS

falling-thresholdthreshold-value2event-entry2: Sets the falling threshold, where threshold-value2represents the falling threshold, in the range -2147483648 to +2147483647 and event-entry2represents the index of the event triggered when the falling threshold is reached. It ranges from 0 to 65535, with 0 meaning no corresponding event is triggered and no event action is taken when an alarm is triggered.

owner text: Owner of the entry, a string of 1 to 127 characters. It is case sensitive and space is supported.

Description Use the rmon alarm command to create an entry in the RMON alarm table.

Use the undo rmon alarm command to remove a specified entry from the

RMON alarm table.

This command defines alarms. The generation and notification of an alarm however, is controlled by the event entry associated with it.

The following is how the system handles alarm entries:

1Samples the alarm variables at the specified interval.

2Compares the sampled values with the predefined threshold and does the following:

■If the rising threshold is reached, triggers the event specified by the event-entry1argument.

■If the falling threshold is reached, triggers the event specified by the event-entry2argument.

n	■ Before creating an alarm entry, define the events to be referenced in the event
	table with the rmon event command.
	■ When you create an entry, if the values of the specified alarm variable
	(alarm-variable), sampling interval (sampling-interval), sampling type (absolute
	or delta), rising threshold (threshold-value1) and falling threshold
	(threshold-value2) are identical to those of the existing alarm entry, the system
	considers their configurations the same and the creation fails.
	■ You can create up to 60 alarm entries.
	■ The rising alarm and falling alarm are alternate.

Example # Add entry 1 in the alarm table and sample the node 1.3.6.1.2.1.16.1.1.1.4.1 at a sampling interval of 10 seconds in absolute sampling type. Generate event 1 when the sampled value is greater than or equal to the rising threshold of 50, and event 2 when the sampled value is lower than or equal to the falling threshold of 5. Set the owner of the entry to be user1.

<Sysname> system-view [Sysname] rmon event 1 log

[Sysname] rmon event 2 none

[Sysname] interface ethernet 1/0 [Sysname-Ethernet1/0] rmon statistics 1

[Sysname-Ethernet1/0] quit

[Sysname] rmon alarm 1 1.3.6.1.2.1.16.1.1.1.4.1 10 absolute rising_t hreshold 50 1 falling_threshold 5 2 owner user1