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Proceedings Paper

Changes of traffic characteristics after large-scale aggregation in 3Tnet: modeling, analysis, and evaluation
Author(s): Chi Yuan; Junbin Huang; Zhengbin Li; Yongqi He; Anshi Xu
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Paper Abstract

Understanding network traffic behavior is essential for all aspects of network design and operation, e.g. component design, protocol design, provisioning, operations, administration and maintenance (OAM). A careful study of traffic behavior can lead to improvements in underlying protocols to attain greater efficiencies and higher performance. Many researches have shown that traffic in Ethernet and other networks, either in local or wide area networks, exhibit properties of self-similarity. Several empirical studies on network traffic indicate that this traffic is self-similar in nature. However, the network modeling methods used in current networks have been primarily designed and analyzed under the assumption of the traditional Poisson arrival process. These "Poisson-like" models suggest that the network traffic is smooth, which is inherently unable to capture the self-similar characteristic of traffic. In this paper, after introduce the high performance broadband information network (3Tnet) of China, an aggregation model at access convergence router (ACR) is proposed and analyzed in 3Tnet. We studied the impact of large-scale aggregation applied at the edge of 3Tnet in terms of the self-similarity level observed at the output traffic in presence of self-similar input traffic. Two formulas were presented to describe the changes of Hurst parameter. Using OPNET software simulator, changes of traffic characteristics after large-scale aggregation in 3Tnet was extensive studied. The theoretic analysis results were consistent with the simulation results.

Paper Details

Date Published: 19 November 2007
PDF: 10 pages
Proc. SPIE 6784, Network Architectures, Management, and Applications V, 678426 (19 November 2007); doi: 10.1117/12.743767
Show Author Affiliations
Chi Yuan, Peking Univ. (China)
Junbin Huang, Peking Univ. (China)
Zhengbin Li, Peking Univ. (China)
Yongqi He, Peking Univ. (China)
Anshi Xu, Peking Univ. (China)

Published in SPIE Proceedings Vol. 6784:
Network Architectures, Management, and Applications V
Jianli Wang; Gee-Kung Chang; Yoshio Itaya; Herwig Zech, Editor(s)

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