Network and system concepts for optical packet switching
IEEE Communications Magazine
Advances in photonic packet switching: an overview
IEEE Communications Magazine
Labeled optical burst switching for IP-over-WDM integration
IEEE Communications Magazine
Approaches to optical Internet packet switching
IEEE Communications Magazine
Architectures and performance of AWG-based optical switching nodes for IP networks
IEEE Journal on Selected Areas in Communications
Wide-area Internet traffic patterns and characteristics
IEEE Network: The Magazine of Global Internetworking
A case for bufferless routing in on-chip networks
Proceedings of the 36th annual international symposium on Computer architecture
ORGAN: online route and wavelength design based on genetic algorithm for OPS networks
ONDM'10 Proceedings of the 14th conference on Optical network design and modeling
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In previous papers [5,6], an optical switch architecture was proposed to handle variable-length packets such as IP datagrams, based on an AWG device to route packets and equipped with a fiber delay-line stage as optical input buffer. Unfortunately, extensive simulations of optical networks built with switches of this type showed that considerable buffering capability would be required in order to achieve acceptable performance. In this work, therefore, we studied the effectiveness of packet deflection as a mean for solving packet contentions on outputs of optical switches. Optical transport networks were simulated, evaluating the performance of packet deflection routing, based on a traffic model adherent to real IP traffic measurements. Full-mesh and wheel network topologies have been considered, comparing results to assess deflection effectiveness. Our simulation results show that deflection routing leads to satisfying performance even using buffers with limited size. Furthermore, the average delivery delay does not suffer heavy penalty from packet deflection, even under heavy traffic conditions.