Source-oriented topology aggregation with multiple QoS parameters in hierarchical ATM networks

T. Korkmaz, Marwan M Krunz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

We investigate the problem of topology aggregation (TA) for scalable, QoS-based routing in ATM networks. TA is the process of summarizing the topological information of a subset of network elements. This summary is flooded throughout the network, and is used by various nodes to determine appropriate routes for connection requests. A key issue in the design of a TA scheme is the appropriate balance between compaction and the corresponding routing performance. The contributions of this paper are twofold. First, we introduce a source-oriented approach to TA, which provides better performance than existing approaches. The intuition behind this approach is that the advertised topology-state information is used by source nodes to determine tentative routes for connection requests. Accordingly, only relevant information to source nodes needs to be advertised. We integrate the source-oriented approach into three new TA schemes that provide different tradeoffs between compaction and accuracy. Second, we extend our source-oriented approach to multi-QoS-based TA. A key issue here is the determination of appropriate values for the multiple QoS parameters that are associated with a logical link. Two new approaches to computing these values are introduced. Extensive simulations are used to evaluate the performance of our proposed schemes.

Original languageEnglish (US)
Title of host publication1999 7th International Workshop on Quality of Service, IWQOS 1999
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages137-146
Number of pages10
ISBN (Electronic)0780356713
DOIs
StatePublished - Jan 1 1999
Event7th International Workshop on Quality of Service, IWQOS 1999 - London, United Kingdom
Duration: May 31 1999Jun 4 1999

Other

Other7th International Workshop on Quality of Service, IWQOS 1999
CountryUnited Kingdom
CityLondon
Period5/31/996/4/99

Keywords

  • ATM networks
  • PNNI
  • QoS-based routing
  • scalable routing
  • topology aggregation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Korkmaz, T., & Krunz, M. M. (1999). Source-oriented topology aggregation with multiple QoS parameters in hierarchical ATM networks. In 1999 7th International Workshop on Quality of Service, IWQOS 1999 (pp. 137-146). [766488] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IWQOS.1999.766488