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Open Shortest Path First routing (OSPF) is a shortest path first (SPF), or link state, protocol. OSPF is an
interior gateway protocol (IGP) that distributes routing information between routers in a single Autono-
mous System (AS). OSPF chooses the least-cost path as the best path. OSPF is suitable for complex
networks with large numbers of routers since it provides faster convergence where multiple flows to a
single destination can be forwarded on one or more interfaces simultaneously.
In This Chapter
This chapter describes the basic components of OSPF and how to configure them through the Command
Line Interface (CLI). CLI commands are used in the configuration examples; for more details about the
syntax of commands, see the OmniSwitch CLI Reference Guide.
Configuration procedures described in this chapter include:
Loading and enabling OSPF. See
•
Creating OSPF areas. See
•
Creating OSPF interfaces. See
•
Creating virtual links. See
•
Using redistribution policies and filters. See
•
For information on creating and managing VLANs, see "Configuring VLANs" in the OmniSwitch 6600
Family Network Configuration Guide.
OmniSwitch 6600 Family Advanced Routing Configuration Guide
1 Configuring OSPF
"Activating OSPF" on page
"Creating an Area" on page
"Creating OSPF Interfaces" on page
"Creating Virtual Links" on page 1-25
"Enabling Redistribution" on page 1-26
1-17.
1-18.
1-22.
March 2005
page 1-1
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