3com S7906E Manuel De Montage
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Table of Contents
1 IS-IS Configuration ····································································································································1-1
IS-IS Overview ········································································································································1-1
Basic Concepts································································································································1-1
IS-IS Area ········································································································································1-3
IS-IS Network Type ·························································································································1-5
IS-IS PDU Format····························································································································1-7
Supported IS-IS Features··············································································································1-13
Protocols and Standards ···············································································································1-16
IS-IS Configuration Task List ················································································································1-16
Configuring IS-IS Basic Functions ········································································································1-17
Configuration Prerequisites ···········································································································1-17
Enabling IS-IS································································································································1-17
Configuring IS-IS Routing Information Control ·····················································································1-19
Configuration Prerequisites ···········································································································1-19
Configuring IS-IS Link Cost ···········································································································1-19
Specifying a Priority for IS-IS ········································································································1-20
Advertising a Default Route···········································································································1-22
Configuring IS-IS Route Filtering···································································································1-23
Configuring IS-IS Route Leaking···································································································1-24
Tuning and Optimizing IS-IS Networks ·································································································1-24
Configuration Prerequisites ···········································································································1-24
Specifying the IS-IS Hello Multiplier ······························································································1-25
Configuring a DIS Priority for an Interface·····················································································1-25
Configuring LSP Parameters·········································································································1-26
Configuring SPF Parameters ········································································································1-30
Setting the LSDB Overload Bit ······································································································1-30
Configuring IS-IS Authentication···········································································································1-31
Configuration Prerequisites ···········································································································1-31
Configuring Area Authentication····································································································1-31
Configuring IS-IS GR ····························································································································1-33