Australia - Data - Key Trends and Developments


Quality of Service provides for the carriage of time-sensitive packet- and circuit-switched traffic. A backbone network which carries any mixture of traffic types, each with their own QoS, is the Holy Grail of telcos and other organisations seeking a single network technology for all their needs. Multi Protocol Label Switching, often with DiffServ, is the most widely used approach to implementing QoS on TCP/IP and Ethernet networks.

Table of Contents

  • 1. Synopsis
  • 2. Introduction and Terminology
  • 3. One Network for All purposes
    • 3.1 Network reengineering
      • 3.1.1 Video-on-demand
      • 3.1.2 Telecoms services
      • 3.1.3 From narrowband to broadband
    • 3.2 Reducing the number of technologies
      • 3.2.1 Overview of technologies
      • 3.2.2 Frame relay and ATM
    • 3.3 QoS works only within a single network
      • 3.3.1 Traffic engineering
      • 3.3.2 Complex or flexible networks
    • 3.4 Ethernet, TCP/IP and MPLS
    • 3.5 Frame Relay, ATM and DiffServ
      • 3.5.1 Frame relay
      • 3.5.2 ATM
      • 3.5.3 MPLS
  • 4. MPLS
    • 4.1 MPLS Principles
    • 4.2 MPLS + Ethernet
    • 4.3 The MPLS Label
    • 4.4 Edge and core devices
    • 4.5 Stacked or nested labels
    • 4.6 QoS characteristics
    • 4.7 Virtual Circuits and Virtual LANs
      • 4.7.1 Virtual Private Networks - VPNs
      • 4.7.2 Establishing a Virtual Circuit
      • 4.7.3 Building a Virtual LAN
      • 4.7.4 Scaling problems with many Virtual Circuits
    • 4.8 Draft-Martini and beyond
      • 4.8.1 Reducing the load on core routers
      • 4.8.2 MPLS for all types of packets
      • 4.8.3 Outer and inner labels
      • 4.8.4 Draft-Kompella and auto-discovery
  • 5. Conclusion
  • 6. Related reports

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Strategies & Analyses (Industry & Markets)
Telecoms Infrastructure

Number of pages 15

Status Archived

Last updated 23 Jul 2003
Update History

Analyst: Paul Budde

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