What Cisco IOS feature allows you to create your event definition for a network device and specify the action that should be performed in response to that event?

The feature that allows you to create event definitions for a network device and specify the actions to be taken in response to those events is Embedded Event Manager (EEM). EEM is a powerful tool built into Cisco IOS that enables network administrators to automate various tasks based on specific conditions or events occurring on the device.

With EEM, you can define event conditions, such as changes in interface status, high CPU usage, or even logs that match a specific pattern. Once an event is detected, EEM can trigger predefined actions like sending notifications, executing commands, or even running scripts. This capability is especially valuable for automating routine tasks, enhancing network reliability, and proactively addressing issues without the need for manual intervention.

Other options do have their own functionalities: Simple Network Management Protocol (SNMP) is primarily used for monitoring and managing network devices but does not allow the creation of custom event definitions. NetFlow provides insights into traffic patterns but does not perform actions based on events. IP Service Level Agreement (IP SLA) is focused on measuring network performance characteristics, not on defining actions based on events. EEM combines the ability to monitor and respond directly within the device, making it the correct choice for this scenario.