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— Recently, optical packet switch architectures, composed of devices such as optical switches, fiber delay lines, and passive couplers, have been proposed to overcome the electromagnetic interference (EMI), pinout and interconnection problems that would be encountered in future large electronic switch cores. However, attaining the buffer size (buffer depth)(More)
—An approach to optical packet switching is discussed, which uses small, simplified optical elements for traffic routing, merging, and shaping. The elements are constructed from 2 2 2 switches and optical delay lines, and may be implemented in a variety of technologies. They are designed for use with deflection routing, and even when using only six switches(More)
A resilience strategy is introduced for networks implementing dual homing (dual parenting) of customers, specifically those employing Long-Reach PONs (LR-PONs). Assuming that some mechanism exists to detect network element failures, the discussion concentrates on protocols that propagate information about customer reachability and how this information(More)
A novel optical packet switch with multiple ports is proposed, a buffer depth of thousands being possible. Its operation is verified by modeling and analysis. 1. Introduction In an output buffered optical asynchronous transfer mode (ATM) switch [1,2,3] subjected to a uniform, non-bursty load, the attainment of a cell loss of 10 requires a buffer depth of 55(More)
A resilience strategy is introduced for networks implementing dual homing (dual parenting) of customers, specifically those employing Long-Reach PONs (LR-PONs). Assuming that some mechanism exists to detect network element failures, the discussion concentrates on the protocols which propagate information about the reachability of LR-PONs and those that(More)
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