System information

Configuring Routing Policy
7-1
Overview
Routing policy can be used to enforce agreements between two or more ISPs
concerning the amount and type of traffic that is allowed to pass between them.
Routing policy determines the following:
• Routes to accept from neighboring routers
• Preferences for accepted routes
• Routes to be advertised to neighbors
• Routes to be redistributed into and out of another protocol
Use the following sections to configure routing policy for the BSR:
• Defining Route Maps
• Defining Access Lists and Groups
• Creating Community Lists
• Redistributing Routes
• Applying a Damping Criteria
• Policy-Based Routing
• Gathering Routing Policy Information
Defining Route Maps
Route maps establish the conditions for redistributing routes from one routing
protocol to another, and for advertising and learning routes from one router to another.
A route map consists of route-map commands, match statements that define the
conditions that a route must meet, and set statements that define the conditions that
apply to a route.
Creating a Route Map
To define a route map, use the route-map command in Global Configuration mode,
as shown in the example below: