Summary
An understanding of the following key points should have been achieved:
  • The features of link-state routing
  • How link-state routing information is maintained
  • The link-state routing algorithm
  • The advantages and disadvantages of link-state routing
  • Link-state routing compared with distance vector routing
  • OSPF terminology
  • The differences between distance vector and link-state routing protocols
  • OSPF network types
  • The operation of the shortest path first (SPF) algorithm
  • The OSPF Hello protocol
  • The basics steps in the operation of OSPF
  • Enabling OSPF on a router
  • Configuring a loopback address to set router priority
  • Changing OSPF route preference by modifying the cost metric
  • Configuring OSPF authentication
  • Changing OSPF timers
  • Creating and propagating a default route
  • Using show commands to verify OSPF operation