Extreme Networks EPICenter 4.1, Software Installation Manual

Page: 133 / 546

Defining Alarms
EPICenter Software Installation and User Guide 133
Figure 53: The New Alarm Definition window, Scope definition
In this window you define the scope of the alarm—the set of devices that can trigger the alarm. You can
define the scope as a set of individual devices, one or more device groups, as a set of individual ports,
or as one or more port groups.
To define the alarm scope, you select a Source Type (and Device Group, if appropriate), select individual
devices, ports, device groups, or port groups, and add them to the Selections list. The scope can contain
a combination of source types.
The fields and buttons in this window are defined as follows:
• Scope on all devices and ports — When this is checked, an event received from any device or
device port will trigger the alarm. In addition, as new devices are added to the EPICenter inventory
database, those devices and ports will also be included in the device scope.
Uncheck the checkbox to enable scoping by specific devices, device groups, ports or port groups.
• Source Type — The source of the scoping definition (Device, Device Group, Port, or Port Group).
Select the type you want from the pull-down list.
Selecting Device Group or Port Group will scope the alarm on all members of the selected group.
Group membership is evaluated every time a trap is received. Therefore, changes to the group
membership (adding or removing devices or ports) will have an immediate effect on alarm
processing.
To scope the alarm on individual devices or ports, select Device or Port.
For events that originate from a device port (such as link down) the scope will determine whether
the alarm is generated based on an event from a single port, or on events from any port on a device,
or from any port on any device in a device group.
For example, if you want to define an alarm that is fired for any port on device A, you can scope the
alarm as “Device,” select the appropriate device group, and select Device A. If you want to define
the alarm only to be fired on selected ports on Device A, then you would scope the alarm as “Port,”
select Device A, and then select the individual ports. You could also define a port group for the
specific ports of interest, the scope the alarm as Port Group and select the appropriate group.
• Select Group — If you select Device or Port as the Source Type, you must select a Device Group to
indicate what set of devices (and ports) you want to see in the Source List.