The Open Shortest Path First (OSPF) Protocol is the primary TCP/IP routing protocol. Routers use OSPF to exchange network topology information among themselves, giving each router a map of the network. By searching their maps, routers know how to move packets through the network to their destinations.

This section contains information about the following OSPF routing topics:

• Overview of router types
• Viewing and editing OSPF routing information
• Specifying autonomous system border routers (ASBRs)
• Creating a virtual link
• Creating a stub area
• Configuring metric speed

• <Italic>Networking Concepts for the Passport 1000 Series Routing Switch for detailed information about OSPF protocol concepts and terminology.
• OSPF tab for information on graphing chassis OSPF statistics.