QoS Provisioning Framework in IP-Based VPN

Abstract

A virtual private network (VPN) can be broadly defined as a “restricted communication between a set of sites, making use of a backbone that is shared with other traffic not belonging to that communication” (Carugi & De Clercq, 2004, p.116). Since the late nineties, with pervasive deployment of the Internet protocol (IP) technology in corporate networks, IP-based VPNs, in several forms and based on different network technologies, have become a promising solution for a wide range of corporate network services.