| 摘要 |
The invention is an apparatus and method for scheduling the flow of packets. Its purpose is to reduce excess loads, while at the same time, improving efficiency of the system. The scheduler is divided into two or more schedulers operating in parallel. Furthermore, each scheduler is assigned a subset of the available wavelengths. The assignment of wavelengths is done in an asymmetric manner such that one scheduler is assigned many more wavelengths. In addition, the void filling scheduler is used in conjunction with bandwidth grabbing to improve scheduling performance. In a preferred embodiment, the buffer occupancy of a first scheduler is monitored. If it is below a threshold (and a second scheduler's buffer is full), then packets intended for the second scheduler are transferred to the first scheduler.
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