Exterior routing protocols like BGP use industry-standard routing policy to filter and modify routing information exchanged with peers. BGP makes use of the following routing policy constructs:
- AS Path Access Lists
- BGP Community Lists
Use the Routing Policy commands to configure routing policies such as:
- Matching on an AS Path
- Modifying the AS Path
- Setting the local preference
- Setting the route metric
- Setting an IPv6 next hop
- Setting or matching on a BGP community
Note:
For policy-based routing commands, see Policy-Based Routing Commands and IPv6 Policy-Based Routing Commands.
