Policy Framework Configuration Guide - Juniper Networks

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Junos 10.4 Policy Framework Configuration Guide Example: Configuring a Subroutine Create the subroutine is-customer and call it from the routing policies export-customer and import-customer. In import-customer, the action is taken only on routes that match the route filters defined in is-customer. [edit] policy-options { policy-statement is-customer { term match-customer { from { route-filter 10.100.1.0/24 exact; route-filter 10.186.100.0/24 exact; } then accept; } term drop-others { then reject; } } policy-statement export-customer { from policy is-customer; then accept; } policy-statement import-customer { from { protocol bgp; policy is-customer; } then { local-preference 10; accept; } } } Configuring Routing Policy Match Conditions Based on Routing Table Entries In addition to defining match conditions in the from statement of a policy, you can use the condition statement to define conditions used during policy evaluation: condition condition-name { if-route-exists address table table-name; } You can include this statement at the following hierarchy levels: • [edit policy-options] • [edit logical-systems logical-system-name policy-options] To define a policy condition based on the existence of routes in specific tables for use in BGP export policies, specify a name for the condition and include the following options: • if-route-exists address—Specify the address of the route in question. 132 Copyright © 2010, Juniper Networks, Inc.
Chapter 5: Extended Match Conditions Configuration • table table-name—Specify a routing table. You can then add the defined condition to the from statement of a policy: policy-options { policy-statement policy-name { term 1 { from { protocols bgp; condition condition-name; } then { accept; } } ... } The condition statement is available on all platforms, but is limited to use in BGP export policies. To view the configured policy conditions and their associated routing tables and dependent routes, issue the show policy conditions operational mode command; for more information, see the Junos OS Routing Protocols and Policies Command Reference. Copyright © 2010, Juniper Networks, Inc. 133
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Junos ® OS Policy Framework Config
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END USER LICENSE AGREEMENT READ THI
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12. Commercial Computer Software. T
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Abbreviated Table of Contents Part
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Table of Contents About This Guide
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Table of Contents Testing Routing P
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Table of Contents Using Routing Pol
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Table of Contents Configuring Forwa
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Table of Contents Configuring Flow
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Table of Contents interface (Next-H
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List of Figures Part 1 Policy Frame
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About This Guide This preface provi
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About This Guide • MX Series •
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PART 1 Policy Framework • Introdu
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CHAPTER 1 Introduction to Policy Fr
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CHAPTER 4 Routing Policy Configurat
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CHAPTER 10 Introduction to Traffic
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Chapter 10: Introduction to Traffic
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CHAPTER 11 Policer Configuration Si
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Chapter 16: Summary of Traffic Samp
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PART 5 Indexes • Index on page 46
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Index input statement..............
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Index P P2MP.......................
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Index of Statements and Commands A
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Index of Statements and Commands si
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Policy Framework Configuration Guide - Juniper Networks

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