Cisco Cisco Packet Data Interworking Function (PDIF) Guía Para Resolver Problemas
Routing
▀ Routing Policies
▄ Cisco ASR 5000 Series Enhanced Feature Configuration Guide
OL-22982-01
Routing Policies
This section describes how to configure the elements you need to specify routing policies. Routing policies modify and
redirect routes to and from the system to satisfy specific routing needs.
redirect routes to and from the system to satisfy specific routing needs.
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 upon a
specified range of IP addresses.
IP Prefix Lists - A more advanced element of a routing policy. An IP Prefix list filters routes based upon IP
prefixes.
AS Path Access Lists - A basic building block used for Border Gateway Protocol (BGP) routing. These lists
filter Autonomous System (AS) paths.
Route Maps - Route-maps provide detailed control over routes during route selection or route advertisement by
a routing protocol, and in route redistribution between routing protocols. For this level of control you use IP
Prefix Lists, Route Access Lists and AS Path Access Lists to specify IP addresses, address ranges, and
Autonomous System Paths.
Prefix Lists, Route Access Lists and AS Path Access Lists to specify IP addresses, address ranges, and
Autonomous System Paths.
Creating IP Prefix Lists
Use the following configuration example to create IP Prefix Lists:
Notes:
Set the IP prefix list to deny, permit or match any prefix.
IPv4 and IPv6 addresses are supported.
Save your configuration as described in Saving your Configuration.
Creating Route Access Lists
Use the following procedure to create a Route Access List: