Analysis of Topology Aggregation techniques for QoS routing

  • Authors:
  • Suleyman Uludag;King-Shan Lui;Klara Nahrstedt;Gregory Brewster

  • Affiliations:
  • University of Michigan--Flint, Flint, MI;University of Hong Kong;University of Illinois at Urbana--Champaign;DePaul University

  • Venue:
  • ACM Computing Surveys (CSUR)
  • Year:
  • 2007

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Abstract

We study and compare topology aggregation techniques used in QoS routing. Topology Aggregation (TA) is defined as a set of techniques that abstract or summarize the state information about the network topology to be exchanged, processed, and maintained by network nodes for routing purposes. Due to scalability, aggregation techniques have been an integral part of some routing protocols. However, TA has not been studied extensively except in a rather limited context. With the continuing growth of the Internet, scalability issues of QoS routing have been gaining importance. Therefore, we survey the current TA techniques, provide methodology to classify, evaluate, and compare their complexities and efficiencies.