Creating Classifier Groups And Policy Rules; Classifier Groups And Policy Rules Overview - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - POLICY MANAGEMENT CONFIGURATION GUIDE 2010-10-04 Configuration Manual

CHAPTER 4
Creating Classifier Groups and Policy
Rules

Classifier Groups and Policy Rules Overview

Copyright © 2010, Juniper Networks, Inc.
This chapter provides information for configuring policy-based routing management on
E Series routers. See the E120 and E320 Module Guide for modules supported on the E120
and E320 routers. The chapter discusses the following topics:
Classifier Groups and Policy Rules Overview on page 27
Policy Rule Precedence on page 28
Using Policy Rules to Provide Routing Solutions on page 31
Configuring Policies to Provide Network Security on page 31
Creating an Exception Rule within a Policy Classifier Group on page 32
Defining Policy Rules for Forwarding on page 33
Assigning Values to the ATM CLP Bit on page 34
Enabling ATM Cell Mode on page 35
Enabling IP Options Filtering on page 35
Packet Tagging Overview on page 35
Creating Multiple Forwarding Solutions with IP Policy Lists on page 36
Creating a Classifier Group for a Policy List on page 38
Applying Policy Lists to Interfaces and Profiles Overview on page 39
Using RADIUS to Create and Apply Policies Overview on page 42
Examples: Using the Ascend-Data-Filter Attribute for IPv4 Subscribers on page 47
Examples: Using the Ascend-Data-Filter Attribute for IPv6 Subscribers on page 52
Classifier groups contain the policy rules that make up a policy list. A policy rule is an
association between a policy action and an optional CLACL. The CLACL defines the
packet flow on which the policy action is taken.
A policy list might contain multiple classifier groups—you can specify the precedence in
which classifier groups are evaluated. Classifier groups are evaluated starting with the
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