| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain correct correspondence between a network address and a physical address even when the replacement of a physical address occurs in an optical timing. SOLUTION: The method has a table generating step where table data are generated and stored from at least one entry over where a network address and a physical address are described in cross reference with each other and an address setting step where flag processing to nullify all entries included in the table data at the replacement of the physical address for each entry when the replacement of the physical address with respect to a physical layer occurs.</p> |
