Study on host and station mobility in BGP/MPLS VPN

RFC2547bis-based BGP/MPLS VPN has been widely applied in the service provider's backbone networks. But with the increasing demands of its application in remote mobile working, mobile intranet meetings etc., it is urgent to provide users with convenient and reliable mobile VPN service based on the existing BGP/MPLS VPN networks. The present article has proposed different conditions for mobile application in BGP/MPLS VPN for the first time, and conducted profound analyses and discussions in two different conditions, i.e., the mobile host and the mobile site, as well as specific application conditions, to give a whole set of solutions with great value to the practical application.