Cabletron Systems 9H42X-XX Creating and Editing a Basic Alarm

Alarm Conﬁguration

3-6 Basic Alarm Conﬁguration

The remainder of the window ﬁelds provide the means for conﬁguring alarms for

each available interface. Note that the information provided in this screen is static

once it is displayed; for updated information, click on . Adding or

modifying an alarm automatically updates the list.

Creating and Editing a Basic Alarm

The editable ﬁelds at the bottom of the Basic Alarm Conﬁguration window allow

you to conﬁgure alarm parameters for each available interface. These ﬁelds will

display the parameters used for the most recently conﬁgured alarm (no matter

which interfaces are selected in the list box); this allows you to set the same

parameters on multiple interfaces with a single set. Hold down the Shift key

while clicking to select a contiguous group of interfaces; use the Ctrl key to select

any interfaces. To display the alarm parameters for a speciﬁc interface,

double-click on that interface.

Note that there is no speciﬁc “Enable” function; simply conﬁguring thresholds

and/or actions for an alarm and applying those changes enables the alarm. For

more information on disabling an alarm, see Disabling a Basic Alarm, page 3-9.

To conﬁgure an alarm:

1. At the top of the window, click to select the variable to be used for your alarm:

Kilobits, Total Errors , or Broadcast/Multicast. The display in the list box will

reﬂect the current status at each interface of the alarm type you have

selected.

2. In the list box, click to highlight the interface (or use shift-click or ctrl-click to

select multiple interfaces) for which you would like to conﬁgure an alarm for

the selected variable. Note that the editable ﬁelds will display the parameters

assigned to the most recently set alarm; however, any changes you make in

these ﬁelds will be set to all selected interfaces.

3. In the Interval ﬁeld, enter the amount of time, in seconds, over which the

selected variable will be sampled. At the end of the interval, the sample value

will be compared to both the rising and falling thresholds. You can assign any

interval from 1 to 65,535.

4. In the Alarm ﬁeld, click to select one or both of the following options:

a. Select Log if you wish to create a silent log of alarm occurrences.

b. Select Trap if you want your device to issue a trap in response to each

alarm occurrence.

TIP

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

important to understand something about the hysteresis function built in to the RMON

alarm functionality. See How Rising and Falling Thresholds Work, page 3-27, for

more information.