Conceptual Design for a Hierarchical Overlay IP Virtual Private Network
Qian Hua-lin · Journal of Chinese Computer Systems · 2006
PP VPN services has been around for a year but it did not get wide-spread usage until recently. A combination of new VPN technologies, IPv6 network technologies and business communication requirements are the driving force behind the VPN services. This paper gives an overview of the recent approaches of VPN solutions and compare their scalability and flexibility aspects. This paper also give a hierarchical network address assignment reference model to design a PP VPN overlay network .In comparisons to MPLS VPN, It has great scalability and can offer value added functions.