QoS/Policy/Constraint Based Routing

Abstract:

This is a survey paper on Quality-of-Service(QoS) based routing. In this paper, we first introduce the concept of Quality-of-Service and its background. Second, we discuss the concepts of QoS-based routing, its objectives and main issues. After that, several types of QoS based routing algorithms are compared, and the advantages and disadvantages of each type discussed. Then, the relations between QoS based routing and some relevant techniques are studied, including traffic engineering, high level admission control, resource reservation protocols(e.g. RSVP), differential services(DiffServ) and MPLS (MultiProtocol Label Switching). And finally, a related topic --- policy-based routing is examined.

See also: QoS in Data Networks: Products| Qos in Data Networks: Protocols and Standards| Quality of Service over IP: References| Books on Quality of Service over IP
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Table of Contents:

• 1.Introduction
• 1.1 QoS Concept
• 1.2 QoS Metrics
• 1.3 QoS in ATM Network and Telephone Network
• 1.4 Connection-oriented Nature of the QoS-based Services
• 2.QoS-based Routing
• 2.1 Definitions
• 2.2 Objectives of QoS-based Routing
• 2.3 Main Issues of QoS-based Routing
• 2.4 Intra-domain vs. Inter-domain QoS-based Routing
• 3.QoS-based Routing Algorithms
• 3.1 Requirements for QoS-based Routing Algorithm
• 3.2 Three Types of QoS-based Routing Algorithms
• 3.3 Comparisons
• 3.4 Examples
• 3.5 QoS-based Multicast Routing
• 3.6 Wireless QoS-based Routing
• 4.QoS-based Routing and Related Techniques
• 4.1 QoS-based Routing and Traffic Engineering
• 4.2 QoS-based Routing and Admission Control
• 4.3 QoS-based Routing and Resource Reservation
• 4.4 QoS-based Routing and DiffServ
• 4.5 QoS-based Routing and MPLS
• 5.Policy-based Routing
• 5.1 What is Policy
• 5.2 Policy-based Routing
• 5.3 Policy Framework and Architecture
• 5.4 Policy-based Routing vs. QoS-based Routing
• 5.5 Current Status and Future Directions
• 6.Summary
• References
• List of Acronyms

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