QoS for the selection of OVPN connection and wavelength assignmen

Abstract

Optical networking is a promising solution to the increasing bandwidth requirements of today’s communication networks. The never-ending challenge is to look for the technology which improve network capacity, consistency and cost. So QoS for the optical virtual private network (OVPN) using wavelength-division multiplexing (WDM) is having an important role in telecommunication application. In this work, we propose a centralized OVPN control manager. The network can be defined by various network and physical layer parameters. Further these parameters are used by optical virtual private network control manager for the calculation of Q-factor of OVPN connections. Then among them it selects an OVPN connection which is best in quality so that it will satisfy the requirement of client which is attached to the network. In the network , the network layer parameters and the physical layer parameters have impact on quality of connection. This is known as physical layer impairments constraints. The effect of physical layer impairments can be analyzed .It is important to consider the process, which provide network and physical layer impairment information to OVPN control manager. In this we discuss about the improvement in blocking probability by using routing by proposed algorithm, the shortest path algorithm and wavelength assignment.