Chapter 20: Interior Gateway Protocols; Overview - Extreme Networks ExtremeWare XOS Guide Manual

20 Interior Gateway Protocols
This chapter describes the following topics:
Overview on page 381
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Overview of RIP on page 382
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Overview of OSPF on page 384
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Route Redistribution on page 389
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RIP Configuration Example on page 391
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Configuring OSPF on page 393
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OSPF Configuration Example on page 394
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Displaying OSPF Settings on page 396
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This chapter assumes that you are already familiar with IP unicast routing. If not, refer to the following
publications for additional information:
RFC 1058—Routing Information Protocol (RIP)
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RFC 1723—RIP Version 2
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RFC 2328—OSPF Version 2
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RFC 1765—OSPF Database Overflow
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RFC 2370—The OSPF Opaque LSA Option
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RFC 3101—The OSPF Not-So-Stubby Area (NSSA) Option
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Interconnections: Bridges and Routers
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by Radia Perlman
ISBN 0-201-56332-0
Published by Addison-Wesley Publishing Company

Overview

The switch supports the use of two interior gateway protocols (IGPs); the Routing Information Protocol
(RIP), and the Open Shortest Path First (OSPF) protocol.
RIP is a distance-vector protocol, based on the Bellman-Ford (or distance-vector) algorithm. The
distance-vector algorithm has been in use for many years and is widely deployed and understood.
OSPF is a link-state protocol, based on the Dijkstra link-state algorithm. OSPF is a newer IGP and solves
a number of problems associated with using RIP on today's complex networks.
NOTE
RIP and OSPF can be enabled on a single VLAN.
ExtremeWare XOS 11.1 Concepts Guide
381