Routing Policy Language 543
Routing Policy Language Overview 543
Routing Policy Language Structure 544
Names 544
Sets 544
as-path-set 545
community-set 546
extcommunity-set 547
prefix-set 550
Enhanced Prefix-length Manipulation 552
ACL Support in RPL Prefix Sets 552
rd-set 552
Routing Policy Language Components 553
Routing Policy Language Usage 553
Routing Policy Configuration Basics 555
Policy Definitions 556
Parameterization 556
Parameterization at Attach Points 557
Global Parameterization 558
Semantics of Policy Application 558
Boolean Operator Precedence 558
Multiple Modifications of the Same Attribute 559
When Attributes Are Modified 560
Default Drop Disposition 560
Control Flow 560
Policy Verification 561
Range Checking 561
Incomplete Policy and Set References 561
Attached Policy Modification 562
Verification of Attribute Comparisons and Actions 562
Policy Statements 562
Remark 563
Disposition 563
Action 565
If 565
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
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