This document defines protocol extensions and procedures for BGP Provider/Customer Edge router iteration in BGP/MPLS IP VPNs. These extensions and procedures have the objective of making the usage of the BGP/MPLS IP VPN transparent to the customer network@ as far as routing information is concerned.
RFC 6368-2011 history
2011RFC 6368-2011 Internal BGP as the Provider/Customer Edge Protocol for BGP/MPLS IP Virtual Private Networks (VPNs)