| 摘要 |
An optical transmission apparatus to which an optical module having optical module information stored therein is attachable, the optical module information being manufacturing information about the optical module, includes a certification rank table configured to a list, with respect to each of a plurality of optical modules, the optical module information regarding an optical module and a rank indicative of a range of guarantee for the corresponding optical module, and a ranking unit configured to refer to the certification rank table by use of the optical module information stored in an optical module attached to the optical transmission apparatus so as to determine the rank indicative of a range of guarantee for the attached optical module, wherein the determined rank is reported to an exterior of the apparatus.
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