Routing Beyond MPLS Domains: Voice Over Enhanced IP Network
Abstract - With the ever increasing demand for better quality of service, the traditional IP networks are becoming uncompetitive. Emerging technologies like Multi Protocol Label Switching (MPLS) provide stringent quality of service (QoS) guarantees but it cannot be implemented on the existing IP infrastructure. There is a need to improve the performance of IP networks to support better quality of service in voice traffic environments. We present a paradigm for enhancing the routing capability of IP networks and optimize the existing networks by combining two state of art interior gateway routing protocols OSPF (Open Shortest Path First) a link state protocol and a distance vector routing protocol EIGRP (Enhanced Interior Gateway Routing Protocol). The validation is done by comparing the performance of the developed IP network throughput and end-to-end delay with identical label switched network using OPNET. As the result shows the throughput and end-to-end delay of the developed IP network is approximately same performance as the MPLS network as desired.
Keywords - EIGRP, MPLS, OSPF, Throughput.