| 摘要 |
Upon executing data exchange between a pair of LAN's via a gate way, a root hub transmits the communication data, in an address describing area of which source/destination addresses are described, and a gate way decodes the source/destination addresses included in received communication data, decides whether or not the source and the destination belong to the same LAN based on decoded source/destination addresses and attribution identification information, selects an appropriate route as the destination of the communication data based on a result of this attribution decision, and then transmits the communication data to the destination via selected route.
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