DoumiMan for guaranteed QoS provisioning in next generation Internet

Abstract

We propose an integrated traffic engineering and management system for DiffServ-over-MPLS services in the next generation Internet, called DoumiMan (DiffServ-over-universal-MPLS Internet Manager). Using the proposed DoumiMan for DiffServ-over-MPLS network, the Internet service provider (ISP) can easily configure Diffserv-over-MPLS traffic flows among the customer's distributed sites, and can provide guaranteed end-to-end QoS by controlling the virtual topology of MPLS tunnel LSP which are configured by MPLS traffic engineering. We explain the requirements and overall operations of the DiffServ-over-MPLS traffic engineering, the architecture of the MPLS network management system, and its detailed functions for network configuration, MPLS E-LSP establishment, performance management, fault management, and MPLS-based VPN. This paper also provides the experimental results and performance analysis of the proposed traffic engineering and management system that configured and managed a sample DiffServ-over-MPLS network with Cisco MPLS routers.