IP Backbone Security: MPLS VPN Technology

The Multiprotocol Label Switching (MPLS) technology is currently the most deployed technology by service providers over backbone networks. The highly useful MPLS application nowadays is the MPLS Virtual Private Network (VPN).Due to the enterprises and organizations demand of allowing the remote sites and users to connect to enterprise network, MPLS VPNs have become more attractive.The service providers are using MPLS VPN technology to provide the end users a secure channel across the public internet, with flexibility and scalability.MPLS VPNs have the functionality to operate over both MPLS networks as well as existing IP networks.Variety of research has been conducted in this area and many researchers have proposed different models and solutions to implement MPLS VPN technology more effectively and efficiently.This paper presents the detail analysis of the existing and future techniques and models which are used to implement, optimize, secure MPLS VPN technology.