An Innovative Solution for Dynamic Bandwidth Engineering in IP/MPLS Networks with QoS Support

This paper reports an original module for effectively handling bandwidth resources in a multi-service MPLS network. This module, named bandwidth engineering, allows accommodating more traffic with respect to traditional IP networks, reducing the network blocking probability, while preserving Class of Service (CoS) requirements. It consists of an algorithm that handles priority between label switched paths associated to different classes of services, and of a dynamic routing algorithm that works with the bandwidth constraint. Simulation results are reported to assess the validity of the proposed solution.