The multi-layer VPN management architecture

This paper proposes management architecture of a multi-layer virtual private network over the broadband network that will play an important role at the initial stages of the broadband era. To provide flexible management capabilities with the administrator of the VPN, we adopt a layering concept and abstraction mechanism to give a simple view of the real connection at service management level. The multilayer VPN management architecture we propose includes the concept of customer network management for a subscriber's control of their own VPN, and the information/computational model of VPN with emphasis on the layering concept based on ITU-T G.803 and G.805. In addition, some advanced multi-layer VPN features and a generic bearer connectivity model are presented. We also outline our early experiences with the implementations of the proposed VPN management architecture based on the common object request broker architecture and Web technologies.