Static Routing and Distance Vector Routing Protocols - CCIE Routing and Switching Exam Certification Guide - page 351

Example 7-29 show ip eigrp neighbor Command

Router8#show ip eigrp neighbor
IP-EIGRP neighbors for process 100
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
0 172.16.1.1 Et0 11 00:19:42 11 200 0 5

You verify the EIGRP table with the show ip eigrp topology command. Each route has one
successor and the feasible distance (FD) is shown. The routes are then placed into the routing
table. You can verify all routes with the show ip route command. EIGRP routes are labeled with
a D. The output for Router8 is shown in Example 7-30.

For the destination network 172.16.4.0/30, you can gather the following information:
•

The successor is 172.16.1.1.

•

The feasible distance is 2195456.

•

The metric used by the neighboring router (Router9) is 2169856.

•

The interface to reach network 172.16.4.0 is Ethernet 0.

The EIGRP routes are shaded in the output of the show ip route command. EIGRP routes are
marked with a D. For destination 172.16.4.0/30, the metric is 2195456 and the administrative
distance is 90. The route was last updated 17 minutes and 20 seconds ago. The output interface
to reach the destination is through Ethernet 0.

Example 7-30 show ip eigrp topology and show ip route Command on Router8

Router8#show ip eigrp topology
IP-EIGRP Topology Table for AS(100)/ID(172.16.3.1)

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status

P 172.16.4.0/30, 1 successors, FD is 2195456
via 172.16.1.1 (2195456/2169856), Ethernet0
P 172.16.1.0/24, 1 successors, FD is 281600
via Connected, Ethernet0
P 172.16.2.0/24, 1 successors, FD is 2221056
via 172.16.1.1 (2221056/2195456), Ethernet0
P 172.16.3.0/28, 1 successors, FD is 176128
via Connected, TokenRing0
Router8#
Router8#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

continues