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. The document covers Configurations of RCF function to VrfLeak points of application

Routing Control Functions (RCF) is a language that can express route filtering and attribute modification logic in a powerful and programmatic fashion.

This feature adds a configuration option which provides a CLI error if a reference is made to an unconfigured policy