CCNA 新版（英文）D20S05L06.pps

© 2002, Cisco Systems, Inc. All rights reserved.
© 2002, Cisco Systems, Inc. All rights reserved.
2
Enabling EIGRP
Objectives
pleting this lesson, you will be able to:
Describe the features and operation of EIGRP
Use Cisco mands to configure dynamic routing using EIGRP, given a functioning router
Use show and mands to identify anomalies in dynamic routing operation using EIGRP, given an operational router
Introducing EIGRP
EIGRP supports:
Rapid convergence
Reduced bandwidth usage
work-layer protocols
EIGRP Terminology
Comparing EIGRP and IGRP
Similar metric
Same load balancing
Improved convergence time
work overhead
Configuring EIGRP
Router(config-router)#work-number
Selects participating works
Router(config)#router eigrp autonomous-system
Defines EIGRP as the IP routing protocol
EIGRP Configuration Example
Verifying the EIGRP Configuration
Router#show ip protocols
Router#show ip route eigrp
Router#show ip eigrp traffic
Router#show ip eigrp neighbors
Router#show ip eigrp topology
Displays the neighbors discovered by IP EIGRP
Displays the IP EIGRP topology table
Displays the number of IP EIGRP packets sent and received
Displays current EIGRP entries in the routing table
Displays the parameters and current state of the active routing protocol process
debug ip mand
Router#debug ip eigrp
IP-EIGRP: Processing ing UPDATE packet
IP-EIGRP: Ext M 386560 - 256000 130560 SM 360960 - 256000 104960
IP-EIGRP: Ext M 386560 - 256000 130560 SM 360960 - 256000 104960
IP-EIGRP: Ext M 386560 - 256000 130560 SM 360960 - 256000 104960
IP-EIGRP: , - do advertise out 0/1
IP-EIGRP: Ext metric 371200 - 256000 115200
IP-EIGRP: , - do advertise out 0/1
IP-EIGRP: Ext metric 46310656 - 45714176 596480
IP-EIGRP: , - do advertise out 0/1
IP-EIGRP: Ext .