System information

Contents

Displaying IS-IS Database Information 10-16

Displaying the Shortest Path First Log 10-17

Displaying Connectionless Network Service Information 10-19

11 Configuring OSPF

Overview 11-1

Specifications 11-1

Enabling OSPF 11-2

Redistributing Routes into OSPF 11-3

Assigning a Default Metric Value for Redistributed Routes 11-4

Configuring OSPF Area Parameters 11-5

Configuring OSPF Area Authentication Parameters 11-5

Configuring OSPF Stub Areas 11-6

Configuring OSPF Not So Stubby Area 11-8

Configuring Route Summarization between OSPF Areas 11-9

Configuring Route Summarization into OSPF Area 11-10

Managing OSPF on the BSR 11-11

Establishing a Virtual Link 11-11

Assign a Default Route for an ASBR 11-15

Controlling OSPF Link Cost Metrics 11-16

Allowing Dynamic OSPF Virtual Links 11-16

Changing OSPF Administrative Distances 11-17

Configuring Route Calculation Timers 11-18

Configuring OSPF on an Interface 11-18

Configuring General OSPF Interface Parameters 11-19

Blocking OSPF LSA Flooding 11-22

Configuring a Passive Interface for OSPF 11-22

Forcing Router ID Choice with Loopback Interface 11-23

Gathering OSPF Information 11-24

Displaying OSPF Routing Information 11-24

Showing Network Information 11-24

Showing Border Routers 11-25

Showing Neighboring Routers 11-25

Showing Virtual Links 11-27