Chapter 11 OSPF quangkien@ .For further information This presentation is an overview of what is covered in the curriculum/book. For further explanation and details, please read the chapter/curriculum. Book: Routing Protocols and Concepts By Rick Graziani and Allan Johnson ISBN: 1-58713-206-0 ISBN-13: 978-58713206-3 2 .Topics Introduction to OSPF Background of OSPF OSPF Message Encapsulation OSPF Packet Types Hello Protocol OSPF LSUs OSPF Algorithm Administrative Distance Authentication Basic OSPF Configuration Lab Topology The router ospf command The network command OSPF Router ID Verifying OSPF Examining the Routing Table The OSPF Metric OSPF Metric Modifying the Cost of the Link OSPF.