This paper briefly describes the spectral sliced testbed. The architecture pre-allocates channels for data reception and results in a system with M nodes and C subsystem at each node, since only a single wavelength channel is delivered to each node. In addition to the low complexity, the proposed spectral sliced approach supports multicast and broadcast modes in which one processor can simultaneously transfer data to more than one destination. Protocol complexity is the major constraint in this environment. The protocols must have both low implementational and operational complexity to maintain practical feasibility at the high operating speeds. Pre-allocation approaches appear to be very promising because of their low implementation and operational complexity. Two pre-allocation protocols are introduced that are targeted to the spectral sliced architecture. The resulting performance of the two protocols is examined in terms of average delay and throughput through discrete event simulation.
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