Prerequisites For Implementing Routing Policy; Restrictions For Implementing Routing Policy - Cisco ASR 9000 Series Routing Configuration Manual

Prerequisites for Implementing Routing Policy

Release
Release 4.2.1
Release 4.3.1
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Prerequisites for Implementing Routing Policy
The following are prerequisites for implementing Routing Policy on Cisco IOS XR Software:
• You must be in a user group associated with a task group that includes the proper task IDs. The command
• Border Gateway Protocol (BGP), integrated Intermediate System-to-Intermediate System (IS-IS), or

Restrictions for Implementing Routing Policy

These restrictions apply when working with Routing Policy Language implementation on Cisco IOS XR
software:
• An individual policy definition of up to 1000 statements are supported. The total number of statements
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
542
Prerequisites for Implementing Routing Policy, page 542
Restrictions for Implementing Routing Policy, page 542
Information About Implementing Routing Policy, page 543
How to Implement Routing Policy, page 618
Configuration Examples for Implementing Routing Policy, page 621
Additional References, page 628
reference guides include the task IDs required for each command. If you suspect user group assignment
is preventing you from using a command, contact your AAA administrator for assistance.
Open Shortest Path First (OSPF) must be configured in your network.
within a policy can be extended to 4000 statements using hierarchical policy constructs. However, this
limit is restricted with the use of apply statements.
Modification
The following features were introduced:
• Enhanced Prefix-length Manipulation.
• Nested Wildcard Apply Policy.
• Editing Routing Policy Language set elements Using XML.
• Support 'set' as a valid operator for the 'med' attribute at
the bgp export and bgp import attach points.
The following features were introduced:
• VRF RPL Based Import Policy
• Flexible L3VPN Label Allocation
Implementing Routing Policy