Herramienta Eem Cisco

Lab Guide

Advanced Network Automation Solutions using Cisco IOS EEM

LABNMS-2001

Arie Vayner, avayner@cisco.com
Nacho Carretero, igcarret@cisco.com

Advanced Network Automation Solutions using Cisco IOS EEM
LABNMS-2001
Contents
Advanced Network Automation Solutions using Cisco IOS EEM 2
LABNMS-2001 2
Session Abstract 2
Introduction to EEM 3
EEM References 3
EEM DebuggingCommands 4
Lab Structure 5
Task 1 – Block a CLI Command 6
Task 2 – Control CLI Command Execution Rate 8
Task 3 – Scheduling Events 9
Task 4 – Manually Triggered EEM Scripts 10
Task 5 – Monitor Interface Parameters 11
Task 6 – Switch between Primary and Backup Paths 14
Task 7 – Manually Triggered EEM Scripts 19
Appendix I 21

Session Abstract
In this session we will reviewadvanced automation and manageability solutions based on Cisco IOS Embedded Event Manager (EEM) functionality. The session will allow delegates to gain hands-on experience of the implementation of advanced solutions including high availability, network performance optimization, network monitoring and efficient automation. The session would provide a relevant tool set for enhancing network operationswithin networks built on Cisco IOS based routers and switches.

Introduction to EEM
Cisco IOS Embedded Event Manager (EEM) is a powerful and flexible subsystem that provides real-time network event detection and onboard automation. It gives you the ability to adapt the behaviour of your network devices to align with your business needs.

Your business can benefit from the capabilities of IOSEmbedded Event Manager without upgrading to a new version of Cisco IOS Software. It is available on a wide range of Cisco platforms.
Figure 1 Event Detectors

IOS Embedded Event Manager supports more than 20 event detectors that are highly integrated with different Cisco IOS Software components to trigger actions in response to network events.
Figure 2 EEM Architecture

Your businesslogic can be injected into network operations using IOS Embedded Event Manager policies. These policies are programmed using either simple command-line interface (CLI) or using a scripting language called Tool Command Language (Tcl).

Harnessing the significant intelligence within Cisco devices, IOS Embedded Event Manager helps enable creative solutions, including automated troubleshooting, faultdetection, and device configuration.

EEM References
Embedded Event Manager Overview
http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_eem_overview_ps10591_TSD_Products_Configuration_Guide_Chapter.html

Writing Embedded Event Manager Policies Using Cisco IOS CLI Configuration Guide
http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_eem_policy_cli.htmlEmbedded Event Manager (EEM) Scripting Community (Cisco Beyond)
http://forums.cisco.com/eforum/servlet/EEM?page=main

Relevant Command Reference Guides
http://www.cisco.com/en/US/docs/ios/netmgmt/command/reference/nm_01.html
http://www.cisco.com/en/US/docs/ios/netmgmt/command/reference/nm_02.html
http://www.cisco.com/en/US/docs/ios/netmgmt/command/reference/nm_05.htmlhttp://www.cisco.com/en/US/docs/ios/netmgmt/command/reference/nm_06.html

EEM Debugging Commands
The following commands can be used to debug and display the operations of the different scripts used in this lab:
* debug event manager action cli
* debug event manager detector <event detector type>
* show event manager detector <event detector type> detailed
* show event manager policy registered* show track <id>

Lab Structure
The different tasks in this lab provide introduction to different elements of Embedded Event Manager applet programming.

Each task would present a problem that may solve some operational challenge, providing an example using an EEM CLI applet. Each applet would present new programming elements and tools available in EEM.

It is recommended to...