S-OSPF: A Traffic Engineering Solution for OSPF Based Best Effort Networks

Open Shortest Path First (OSPF) is one of the most widely used intra-domain routing protocol. It is well known that OSPF protocol does not provide flexibility in terms of packet forwarding to achieve any network optimization objective. Because of the high cost of network assets and commercial and competitive nature of Internet service provisioning, service providers are interested in performance optimization of their networks. This helps in reducing congestion hotspots and improving resource utilization across the network, which, in turn, results in an increased revenue collection. One way of achieving this is through Traffic Engineering. Currently traffic engineering is mostly done by using MPLS. But legacy networks running OSPF would need to be upgraded to MPLS. To achieve better resource utilization without upgrading OSPF network to MPLS is a challenge. In this paper we present a simple but effective algorithm, called Smart OSPF (S-OSPF) to provide traffic engineering solution in an...

• Type: Conference
• Year: 2007
• Where: GLOBECOM
• Authors: Aditya Kumar Mishra, Anirudha Sahoo
• Keywords: Communications, GLOBECOM 2007, OSPF, Traffic Engineering, Traffic Engineering Solution