The Embedded Event Manager is a brilliant tool that can be found in the Cisco IOS. Before the development of IOS-EX, devices were limited to TCL and EEM to implement scripting locally on the device. Though we now get python available to us, TCL and EEM are still very useful. I’m just going to roll through a simple example of using EEM. We have a Primary and a Backup Circuit in our environment, but prefer to keep the interface of the Backup circuit shutdown when the Primary is active.