A Burst-Switched Photonic Network Testbed: Its Architecture, Protocols and Experiments

Yongmei SUN
Tomohiro HASHIGUCHI
Vu Quang MINH
Xi WANG
Hiroyuki MORIKAWA
Tomonori AOYAMA

Publication
IEICE TRANSACTIONS on Communications   Vol.E88-B    No.10    pp.3864-3873
Publication Date: 2005/10/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.10.3864
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Next Generation Photonic Network Technologies)
Category: 
Keyword: 
photonic Internet,  optical burst switching (OBS),  wavelength selection,  burst scheduling,  contention resolution,  

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Summary: 
In the future network, optical technology will play a stronger role not only for transmission but also for switching. Optical burst switching (OBS) emerged as a promising switching paradigm. It brings together the complementary strengths of optics and electronics. This paper presents the design and implementation of an overlay mode burst-switched photonic network testbed, including its architecture, protocols, algorithms and experiments. We propose a flexible "transceiver + forwarding" OBS node architecture to perform both electronic burst assembly/disassembly and optical burst forwarding. It has been designed to provide class of service (CoS), wavelength selection for local bursts, and transparency to cut-through bursts. The functional modules of OBS control plane and its key design issues are presented, including signaling, routing, and a novel scheduling mechanism with combined contention resolution in space and wavelength domains. Finally, we report the experimental results on functional verification, performance analysis and service demonstration.