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Cisco CCNA Routing and Switching ICND2 200-101 Official Cert Guide by Wendell Odom

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Chapter 11. Troubleshooting IPv4 Routing Protocols

This chapter covers the following exam topics:

Troubleshooting

Troubleshoot and Resolve OSPF problems

Neighbor adjacencies

Hello and Dead timers

OSPF area

Interface MTU

Network types

Neighbor states

OSPF topology database

Troubleshoot and Resolve EIGRP problems

Neighbor adjacencies

AS number

Load balancing

Split horizon

To begin the problem-isolation process when troubleshooting a possible IPv4 routing protocol problem, first focus on interfaces, and then on neighbors. The routing protocol configuration identifies the interfaces on which the router should use the routing protocol. After identifying those interfaces, a network engineer can look at the neighbors each router finds on each interface, ...

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