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H3C Technologies H3C S7500E Series Switches User Manual

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OSPF Configuration Examples ·············································································································4-51

Configuring OSPF Basic Functions·······························································································4-51

Configuring OSPF Route Redistribution························································································4-54

Configuring OSPF to Advertise a Summary Route ·······································································4-55

Configuring an OSPF Stub Area ···································································································4-58

Configuring an OSPF NSSA Area·································································································4-61

Configuring OSPF DR Election ·····································································································4-62

Configuring OSPF Virtual Links·····································································································4-67

Configuring OSPF Graceful Restart ······························································································4-69

Configuring Route Filtering············································································································4-70

Configuring BFD for OSPF ············································································································4-73

Troubleshooting OSPF Configuration ···································································································4-75

No OSPF Neighbor Relationship Established ···············································································4-75

Incorrect Routing Information ········································································································4-76

5 IS-IS Configuration ····································································································································5-1

IS-IS Overview ········································································································································5-1

Basic Concepts································································································································5-2

IS-IS Area ········································································································································5-3

IS-IS Network Type ·························································································································5-6

IS-IS PDU Format····························································································································5-7

Supported IS-IS Features··············································································································5-13

Protocols and Standards ···············································································································5-16

IS-IS Configuration Task List ················································································································5-17

Configuring IS-IS Basic Functions ········································································································5-18

Configuration Prerequisites ···········································································································5-18

Enabling IS-IS································································································································5-18

Configuring the IS Level and Circuit Level ····················································································5-18

Configuring the Network Type of an Interface as P2P ··································································5-19

Configuring IS-IS Routing Information Control ·····················································································5-20

Configuration Prerequisites ···········································································································5-20

Configuring IS-IS Link Cost ···········································································································5-20

Specifying a Priority for IS-IS ········································································································5-22

Configuring the Maximum Number of Equal Cost Routes ····························································5-22

Configuring IS-IS Route Summarization ·······················································································5-23

Advertising a Default Route···········································································································5-23

Configuring IS-IS Route Redistribution ·························································································5-24

Configuring IS-IS Route Filtering···································································································5-24

Configuring IS-IS Route Leaking···································································································5-25

Tuning and Optimizing IS-IS Networks ·································································································5-26

Configuration Prerequisites ···········································································································5-26

Specifying Intervals for Sending IS-IS Hello and CSNP Packets ·················································5-26

Specifying the IS-IS Hello Multiplier ······························································································5-26

Configuring a DIS Priority for an Interface·····················································································5-27

Disabling an Interface from Sending/Receiving IS-IS Packets ·····················································5-27

Enabling an Interface to Send Small Hello Packets······································································5-28