Cisco NCS 5500 Series Configuration Guides

RIB Quarantining 124
Route and Label Consistency Checker 124
Implementing Routing Policy 127
CHAPTER 5
Restrictions for Implementing Routing Policy 127
Define Route Policy 128
Attach Routing Policy to BGP Neighbor 129
Modify Routing Policy Using Text Editor 130
References for Routing Policy 133
Routing Policy Language 134
Routing Policy Language Overview 134
Routing Policy Language Structure 134
Routing Policy Language Components 141
Routing Policy Language Usage 142
Policy Definitions 144
Parameterization 145
Parameterization at Attach Points 146
Global Parameterization 146
Semantics of Policy Application 147
Boolean Operator Precedence 147
Multiple Modifications of Same Attribute 147
When Attributes Are Modified 148
Default Drop Disposition 149
Control Flow 149
Policy Verification 150
Policy Statements 152
Remark 152
Disposition 152
Action 154
If 154
Boolean Conditions 155
apply 157
Attach Points 157
BGP Policy Attach Points 157
Routing Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.3.x
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Contents

Cisco NCS 5500 Series Specifications

General

Series	NCS 5500
Category	Network Router
Operating System	Cisco IOS XR
Product Type	Modular Router
Form Factor	Rack-mountable
Purpose	High-performance routing for service providers and large enterprises
Interface Types	Ethernet
Redundancy	Redundant power supplies and fan trays
Port Density	Varies by model; high-density configurations available
Routing Protocols	BGP, OSPF, IS-IS, MPLS
Power Supply Options	AC and DC power supplies available
Management	CLI, SNMP, NETCONF