BGP route leak detection

You can prevent route leaks in BGP routing by utilizing BGP roles and Only-to-customer (OTC) attributes, as defined in RFC 9234. The feature ensures routes from providers or peers are only propagated to customers, reducing misconfigurations and errors. The BGP speaker automatically sets the OTC based on its configured role, and then advertises a prefix based on the OTC presence in the BGP update message, making the configuration straightforward and minimizing manual intervention. This helps you maintain intended routing policies and prevent issues such as network delays and Denial-of-Service (DoS) attacks.