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One-way resource reservation protocols for IP over optical burst switched mesh networks

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3 Author(s)
Rodrigues, J.J.P.C. ; Dep. of Informatics, Univ. of Beira Interior, Covilha, Portugal ; Freire, M.M. ; Lorenz, P.

In this paper, we present a performance assessment of one-way resource reservation protocols in optical burst switched (OBS) mesh networks. The performance analysis considers five resource reservation protocols, Just-In-Time (JIT), JumpStart, JIT+, Just-Enough-Time (JET) and Horizon, and focuses on the following topologies: rings, degree-three chordal rings, degree-four chordal rings, degree-five chordal rings, degree-six chordal rings, mesh-torus, NSFNET, ARPANET and the European Optical Network (EON). It is shown that when the nodal degree increases from 2 to around 3, the largest gain is observed for degree-three chordal rings (slightly less than three orders of magnitude) and the smallest gain is observed for the ARPANET (less than one order of magnitude). On the other hand, when the nodal degree increases from 2 to around 4, the largest gain is observed for degree-four chordal rings (with a gain between four and five orders of magnitude) and the smallest gain is observed for the EON (with a gain less than one order of magnitude). When the nodal degree increases from 2 to around 5 or 6, the gain is between four and six orders of magnitude. These results clearly show the importance of the way links are connected in OBS networks, since, in this kind of networks, burst loss probability is a key issue. Moreover, the performance of the five protocols is very close for those topologies.

Published in:

Systems Communications, 2005. Proceedings

Date of Conference:

14-17 Aug. 2005