Quality of Service in the Internet

Objectives

  • Discuss the motivation for service integration, including the problem of supporting QoS in TCP / IP networks.
  • Identify the requirements of current applications and services, and the characteristics of their traffic.
  • Apply QoS monitoring, following appropriate measurement methodologies and respecting standard metrics.
  • Implement QoS control mechanisms.
  • Explain current QoS architectures.
  • Explain emerging traffic engineering requirements and solutions in specific application scope.
  • Understand the operation of several internal and external routing protocols (e.g. RIP, OSPF, EIGRP, BGP etc.) in the context of the Internet.
  • Operationalize illustrative traffic routing configurations in wide networks (internal and external protocols).
  • Discuss traffic engineering and optimization approaches in the context of some routing protocols.

Program

  1. Quality of Service
    • Principles and perspectives
    • Requirements of current applications and services
  2. QoS Monitoring
    • Metrics
    • Measurement methodologies
    • Centralized/distributed monitoring systems
    • Challenges and solutions: filtering, aggregation, traffic sampling
  3. QoS Control Mechanisms
    • Policing, shapping, queuing, scheduling and AQM mechanisms
    • Applicability in network boundaries and core nodes
    • Service configuration, SLA/SLSs
  4. IETF QoS Models
    • Integrated Services and Differentiated Services
    • Intra-domain and end-to-end applicability
  5. Traffic engineering in specific scope
    • SDN/NFV, INT, secure traffic, AI
  6. IP Routing
    • Internal and external protocols, protocol convergence, protocol configuration, routing and forwarding policies
    • Routing optimization
    • Routing via SDN, Segment Routing, Terminal mobility

Bibliography

  • Miguel Barreiros, Peter Lundqvist, QOS-Enabled Networks: Tools and Foundations, Wiley, ISBN-13: 978-1119109105, 2nd edition, February 2016
  • Sanjay Jha, Mahbub Hassan, Engineering Internet QoS, Artech House Inc., ISBN- 13: 978-1580533416, August 2002.
  • Z. Wang, Internet QoS: Architectures and Mechanisms for Quality of Service, The Morgan Kaufmann Series in Networking, ISBN-13: 978-1558606081, March 2001.
  • Network Routing, D. Medhi, K. Ramasamy, Morgan Kaufmann, 2017
  • IP Routing Protocols, U. Black, Prentice Hall, 2000

Updated: