Study and Realization of VPDN Based on MPLS
Yang Xi-quan, Zheng‐Fu Han, Dan Shi, Cong Rong-hua · Journal of Changchun Post and Telecommunication Institute · 2005
VPDN(Virtual Private Dialup Network)extends VPN(Virtual Private Network) in the applications. The basic theory of VPDN is introduction to realization of second layer and some key issues are discussed. The tunnel protocols of PPTP(Point to Point Tunneling Protocol) and L2TP(Layer 2 Tunneling Protocol) are compared and security characteristic of IPSec(Internet Protocol Security) is analyzed. This paper puts forward design method of VPDN on MPLS(Multi Protocol Label Switch) in the realization of third layer and more study problems. This project can effectively reduce encapsulation cost and offer a profitable think of design for third layer VPDN.