| 摘要 |
If exists a client signal of a bandwidth larger than “optical signal bandwidth BW” divided by “the number of utilizable ports P”, extracted is a combination(s) of signals including one or more of a signal of a maximum bandwidth, of signals of which a total bandwidth is within the BW and of signals of which the number of total ports required in correspondence with a protection type of each client signal is equal to P, and selected is a combination of which the total bandwidth is a maximum from among the extracted combinations.
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