Chapter 1 6 Routing; Routing Policies - Cisco ASR 5000 Administration Manual
Staros release 21.1
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Also See for ASR 5000:
- Installation manual (294 pages) ,
- Administration manual (159 pages) ,
- Installation procedure (8 pages)
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Routing
This chapter provides information on configuring an enhanced, or extended, service. The product
administration guides provide examples and procedures for configuring basic services on the system. You
should select the configuration example that best meets your service model, and configure the required
elements for that model before using the procedures described below.
This chapter includes the following sections:
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Routing Policies
This section describes how to configure the elements needed to define routing policies. Routing policies
modify and redirect routes to and from the system to satisfy specific network deployment requirements.
Use the following building blocks to configure routing policies:
• Route Access Lists – The basic building block of a routing policy. Route access lists filter routes based
• IP Prefix Lists – A more advanced element of a routing policy. An IP Prefix list filters routes based on
• AS Path Access Lists – A basic building block used for Border Gateway Protocol (BGP) routing. These
• Route Maps – Route-maps provide detailed control over routes during route selection or route
Routing Policies, page 253
Static Routing, page 255
OSPF Routing, page 256
OSPFv3 Routing, page 259
Equal Cost Multiple Path (ECMP), page 260
BGP-4 Routing, page 261
Bidirectional Forwarding Detection, page 268
Viewing Routing Information, page 278
on a range of IP addresses.
IP prefixes.
lists filter Autonomous System (AS) paths.
advertisement by a routing protocol, and in route redistribution between routing protocols. For this level
C H A P T E R
ASR 5000 System Administration Guide, StarOS Release 21.1
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