| 摘要 |
A frame transmission system includes: a first frame transmission apparatus configured to transmit a message frame containing an medium access control (MAC) destination address in an intended user MAC frame, and containing both MAC header information and header information of an upper layer in a user MAC frame; and a second frame transmission apparatus configured to identify one output destination physical link based on the MAC header information and the header information of the upper layer acquired from the message frame, when an output destination with regard to the MAC destination address in the message frame constitutes a link aggregation group including a plurality of physical links, and generate a reply frame containing information on the identified output destination physical link and a MAC address of the second frame transmission apparatus in order to return the reply frame to the first frame transmission apparatus.
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