Chapter 9. Troubleshooting OSPF

This chapter covers the following OSPF troubleshooting topics:

Troubleshooting OSPF neighbor relationships

Troubleshooting OSPF route advertisement

Troubleshooting OSPF route installation

Troubleshooting redistribution problems in OSPF

Troubleshooting route summarization in OSPF

Troubleshooting CPUHOG problems

Troubleshooting dial-on-demand routing (DDR) issues in OSPF

Troubleshooting SPF calculation and route flapping

Common OSPF error messages

This chapter discusses common problems of OSPF and tells how to troubleshoot those problems. OSPF is a complex protocol when compared to RIP or IGRP. Sometimes, the problems can be relatively easy to troubleshoot and require few configuration changes. ...

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