Cisco ASR 9000 Series Routing Configuration Guide

•
Information About Implementing EIGRP, page 302
•
How to Implement EIGRP , page 315
•
Configuration Examples for Implementing EIGRP , page 336
•
Additional References, page 338
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.
Restrictions for Implementing EIGRP
The following restrictions are employed when running EIGRP on this version of Cisco IOS XR software:
•
A maximum of 4 instances of an EIGRP process is supported.
•
The characters allowed for EIGRP process name are @ . # : - _ only.
•
Simple Network Management Protocol (SNMP) MIB is not supported.
•
Interface static routes are not automatically redistributed into EIGRP, because there are no network
commands.
•
Metric configuration (either through the default-metric command or a route policy) is required for
redistribution of connected and static routes.
•
Auto summary is disabled by default.
•
Stub leak maps are not supported.
Information About Implementing EIGRP
To implement EIGRP, you need to understand the following concepts:
EIGRP Functional Overview
Enhanced Interior Gateway Routing Protocol (EIGRP) is an interior gateway protocol suited for many different
topologies and media. EIGRP scales well and provides extremely quick convergence times with minimal
network traffic.
EIGRP has very low usage of network resources during normal operation. Only hello packets are transmitted
on a stable network. When a change in topology occurs, only the routing table changes are propagated and
not the entire routing table. Propagation reduces the amount of load the routing protocol itself places on the
network. EIGRP also provides rapid convergence times for changes in the network topology.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
302
Implementing EIGRP
Prerequisites for Implementing EIGRP

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model