CHAPTER 5
Implementing EIGRP
The Enhanced Interior Gateway Routing Protocol (EIGRP) is an enhanced version of IGRP developed by
Cisco. This module describes the concepts and tasks you need to implement basic EIGRP configuration using
Cisco IOS XR software. EIGRP uses distance vector routing technology, which specifies that a router need
not know all the router and link relationships for the entire network. Each router advertises destinations with
a corresponding distance and upon receiving routes, adjusts the distance and propagates the information to
neighboring routes.
For more information about EIGRP on the Cisco IOS XR software and complete descriptions of the EIGRP
commands listed in this module, see the EIGRP Commands chapter in the Routing Command Reference for
Cisco NCS 6000 Series Routers. To locate documentation for other commands that might appear while
executing a configuration task, search online in the Cisco IOS XR software master command index.
Note
Feature History for Implementing EIGRP
This feature was introduced.Release
5.0.0
• Prerequisites for Implementing EIGRP, on page 179
• Restrictions for Implementing EIGRP , on page 180
• Information About Implementing EIGRP, on page 180
• How to Implement EIGRP , on page 189
• Configuration Examples for Implementing EIGRP , on page 198
• Additional References, on page 199
Prerequisites for Implementing EIGRP
You must be in a user group associated with a task group that includes the proper task IDs. The command
reference guides include the task IDs required for each command. If you suspect user group assignment is
preventing you from using a command, contact your AAA administrator for assistance.
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
179
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