RPKI provides a mechanism to validate the originating AS of an advertised prefix. Using the result of the validation to apply inbound policy in a route map.

Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion. This document serves as a reference guide for: Routing protocol attributes, Operators for comparing and modifying attributes, built-in functions provided in RCF