3com S7906E Manuel De Montage
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Table of Contents
1 OSPF Configuration ··································································································································1-1
Introduction to OSPF·······························································································································1-1
Basic Concepts································································································································1-2
OSPF Area Partition ························································································································1-3
Router Types ···································································································································1-7
Classification of OSPF Networks ····································································································1-8
DR and BDR····································································································································1-9
OSPF Packet Formats···················································································································1-10
Supported OSPF Features ············································································································1-18
Protocols and Standards ···············································································································1-21
OSPF Configuration Task List ··············································································································1-21
Enabling OSPF ·····································································································································1-23
Prerequisites··································································································································1-23
Configuration Procedure················································································································1-23
Configuring OSPF Areas·······················································································································1-24
Prerequisites··································································································································1-24
Configuring a Stub Area ················································································································1-24
Configuring an NSSA Area············································································································1-25
Configuring a Virtual Link ··············································································································1-26
Configuring OSPF Network Types········································································································1-26
Prerequisites··································································································································1-27
Configuring OSPF Route Control··········································································································1-29
Prerequisites··································································································································1-29
Configuring a Priority for OSPF·····································································································1-33
Advertising a Host Route···············································································································1-35
Configuring OSPF Network Optimization······························································································1-36
Prerequisites··································································································································1-36
Specifying SPF Calculation Interval ······························································································1-38