Log/Trap, Polling Interval, Rising Action

Alarm Configuration

Log/Trap

Indicates whether or not each alarm has been configured to create a silent log of event occurrences and the alarms that triggered them, and whether or not each alarm has been configured to issue a trap in response to a rising or falling alarm condition. Possible values are log, trap, log&trap, or none.

Polling Interval

Displays the amount of time, in days, hours, minutes, and seconds, over which the selected alarm variable will be sampled. At the end of the interval, the sample value will be compared to both the rising and falling thresholds (described below). You can set any interval up to 24,855 days.

Rising Threshold

Displays the high threshold value set for the selected alarm variable. Values used to compare to the thresholds are relative, or delta values (the difference between the value counted at the end of the current interval and the value counted at the end of the previous interval); be sure to set your thresholds accordingly.

Rising Action

Indicates whether or not a rising alarm occurrence will initiate any actions in response to the alarm condition: Enable if bridging will be enabled at the selected interface in response to a rising alarm, Disable if bridging will be disabled at the selected interface in response to a rising alarm, and None if no actions have been configured for the selected alarm. Note that the Action fields will be unavailable for devices configured to operate in SecureFast switching mode.

Falling Threshold

Displays the low threshold value set for the selected alarm variable. Values used to compare to the thresholds are relative, or delta values (the difference between the value counted at the end of the current interval and the value counted at the end of the previous interval); be sure to set your thresholds accordingly.

Falling Action

Indicates whether or not a falling alarm occurrence will initiate any actions in response to the alarm condition: Enable if bridging will be enabled at the selected interface in response to a falling alarm, Disable if bridging will be disabled in response to a falling alarm, and None if no actions have been configured for the selected alarm. Note that the Action fields will be unavailable for devices configured to operate in SecureFast switching mode.

Before you decide whether or not to assign an action to a rising or falling alarm, it is

TIP important to understand something about the hysteresis function built in to the RMON alarm functionality. See How Rising and Falling Thresholds Work, on page 3-27, for more information.

Basic Alarm Configuration

3-5

2000 specifications

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