Cisco Catalyst 3750-E Software Configuration Manual page 798

Understanding Embedded Event Manager
because some problems compromise communication between the switch and the external network
management device. Network availability is improved if automatic recovery actions are performed
without rebooting the switch.
Figure 34-1
and the event subscribers (policies). The event publishers screen events and when there is a match on an
event specification that is provided by the event subscriber. Event detectors notify the EEM server when
an event occurs. The EEM policies then implement recovery based on the current state of the system and
the actions specified in the policy for the given event.
Figure 34-1
Core event publishers
Cisco
IOS
parser
text
CLI
event
detector
See the
deployment.
Event Detectors, page 34-3
•
Embedded Event Manager Actions, page 34-4
•
Embedded Event Manager Policies, page 34-4
•
Embedded Event Manager Environment Variables, page 34-5
•
• EEM 3.2, page 34-5
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
34-2
shows the relationship between the EEM server, the core event publishers (event detectors),
Embedded Event Manager Core Event Detectors
Syslog
OIR
message
events
queue
SYSLOG OIR
event event
detector detector
EMBEDDED EVENT MANAGER SERVER
EEM Configuration for Cisco Integrated Services Router Platforms Guide
Chapter 34
event
manager run
CLI command
NONE
event
detector
Event
subscribers
Configuring Embedded Event Manager
Hardware
timers
Timer Counter
event event
detector detector
EEM POLICY DIRECTOR
Subscribes to receive events
and implements policy actions
EEM APPLET
EEM SCRIPT
for examples of EEM
OL-9775-08