Cisco Catalyst 2960 Series, Руководство по настройке

Страница: 1753 / 2288

Object tracking was enhanced to provide complete separation between the objects to be tracked and the action
to be taken by a client when a tracked object changes. Thus, several clients such as HSRP, VRRP, or GLBP
can register their interest with the tracking process, track the same object, and each take different action when
the object changes. Each tracked object is identified by a unique number that is specified on the tracking
command-line interface (CLI). Client processes use this number to track a specific object. The tracking process
periodically polls the tracked objects and notes any change of value. The changes in the tracked object are
communicated to interested client processes, either immediately or after a specified delay. The object values
are reported as either up or down.
Enhanced object tracking is now integrated with EEM to allow EEM to report on a status change of a tracked
object and to allow enhanced object tracking to track EEM objects. A new type of tracking object--a stub
object--is created. The stub object can be manipulated using the existing CLI commands that already allow
tracked objects to be manipulated.
GOLD Event Detector
The GOLD event detector publishes an event when a GOLD failure event is detected on a specified card and
subcard.
Interface Counter Event Detector
The interface counter event detector publishes an event when a generic Cisco IOS interface counter for a
specified interface crosses a defined threshold. A threshold can be specified as an absolute value or an
incremental value. If the incremental value is set to 50, for example, an event would be published when the
interface counter increases by 50.
After an interface counter event has been published, the interface counter monitoring logic is reset using two
methods. The interface counter is reset either when a second threshold--called an exit value--is crossed or
when an elapsed period of time occurs.
IP SLA Event Detector
The IP SLA event detector publishes an event when an IP SLA reaction is triggered.
NetFlow Event Detector
The NetFlow event detector publishes an event when a NetFlow event is triggered.
None Event Detector
The none event detector publishes an event when the Cisco IOS event manager run CLI command executes
an EEM policy. EEM schedules and runs policies on the basis of an event specification that is contained within
the policy itself. An EEM policy must be identified and registered to be permitted to run manually before the
event manager run command will execute.
OIR Event Detector
The online insertion and removal (OIR) event detector publishes an event when one of the following hardware
insertion or removal event occurs:
• A card is removed.
• A card is inserted.
Route Processors (RPs), line cards, or feature cards can be monitored for OIR events.
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
1671
Information About Embedded Event Manager