Optimizing DSL network through new architectures level 2 communication networks

The purpose of this paper is to propose a minor change in the conventional model to build VPN level 2.A new architecture for low cost using DSL technology in tanden with frame relay or ATM technologies aiming the formation of level 2 networks is presented in this document, in order to turn backbone feasible and optimize by making use of stablished DSL access which is operated by local telecom operators which provide applications through VPNs. The architectures of traditional VPNs level 2 will be then compared with the new proposed level 2 VPN by DSL access through OPNET simulator. Simulation shows us that by using the new proposed model along with DSL access, VPŃs provide an equivalent performance with Frame Relay or ATM access, assuring levels of service well defined, insurance and low cost.