QoS-Aware Cross-Layer Multicasting for Optical Packet-Switched Networks: Simulation Exploration and Test-Bed Demonstration
Cross-layer quality-of-service-aware packet multicasting is investigated for optical packet switching network fabrics. This paper presents both a numerical simulation exploration of the cross-layer routing algorithms and an experimental demonstration on an optical switching test-bed with 10?10- GB/s wavelength-striped packets. A novel Internet architecture will be essential to accommodate the exploding bandwidth demands faced by the current infrastructure. The next-generation design should leverage innovative optical technologies to offer a more intelligent, programmable optical layer with flexible bandwidth allocation and dynamic interaction with higher network layers.