Overview of QoS Routing

Overview

QoS routing has been recognized as an important part in the evolution of QoS service offerings in the network. The goal of routing solutions is twofold: satisfying the QoS requirements for every admitted connection, and achieving global efficiency in resource utilization. This paper describes some of QoS-based routing issues and requirements, and presents different routing strategies, outlines Unicast and Multicast, intra and interdomain routing. Finally, the extensions to the OSPF protocol to support QoS routes are briefly described.