Deleting a Filter ......................................................................................................................................322

Filter Command Reference ..............................................................................................................................323

Command Hierarchies.................................................................................................................................323

Configuration Commands ......................................................................................................................324

Show Commands ...................................................................................................................................329

Clear Commands ...................................................................................................................................329

Monitor Commands ................................................................................................................................329

Debug Commands .................................................................................................................................330

Command Descriptions ...............................................................................................................................331

Configuration Commands ......................................................................................................................332

Show Commands ...................................................................................................................................374

Clear Commands ...................................................................................................................................404

Monitor Commands ................................................................................................................................407

Debug Commands .................................................................................................................................409

Route Policies..................................................................................................................................... 411

In This Chapter .................................................................................................................................................411

Configuring Route Policies ...............................................................................................................................412

Routing Policy and MPLS............................................................................................................................412

Policy Statements........................................................................................................................................413

Default Action Behavior..........................................................................................................................413

Denied IP Prefixes .................................................................................................................................414

Controlling Route Flapping.....................................................................................................................414

Regular Expressions ...................................................................................................................................416

BGP and OSPF Route Policy Support ........................................................................................................420

BGP Route Policies................................................................................................................................421

Readvertised Route Policies ..................................................................................................................422

When to Use Route Policies........................................................................................................................422

Route Policy Configuration Process Overview .................................................................................................423

Configuration Notes..........................................................................................................................................424

Reference Sources......................................................................................................................................424

Configuring Route Policies with CLI ................................................................................................................425

Route Policy Configuration Overview ...............................................................................................................426

When to Create Routing Policies ................................................................................................................426

Default Route Policy Actions .......................................................................................................................427

Policy Evaluation .........................................................................................................................................428

Damping .................................................................................................................................................431

Basic Route Policy Configuration .....................................................................................................................433

Configuring Route Policy Components.............................................................................................................435

Beginning the Policy Statement .................................................................................................................436

Creating a Route Policy...............................................................................................................................436

Configuring a Default Action .......................................................................................................................438

Configuring an Entry....................................................................................................................................439

Configuring an AS Path (policy-option) .......................................................................................................441

Configuring a Community List .....................................................................................................................441

Configuring Damping...................................................................................................................................442

Configuring a Prefix List ..............................................................................................................................443

7705 SAR OS Router Configuration Guide

Table of Contents