| 摘要 |
A multi-processor switch includes a main processor, a plurality of co-processors to perform a calling process under the control of the main processor, a detection unit to detect a failure at the main processor, and a determination unit to determine which replacement processor will perform the main processor functions from among the co-processors, based on the operating state of each co-processor when the failure at the main processor is detected by the detection unit. The operating state of each of the co-processor is, for example, the load state imposed on the co-processor or the number of times its operation has been resumed. By selecting a co-processor that has a small load or which has been resumed less frequently, an appropriate, more stable replacement processor can be determined.
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