| 摘要 |
An xDSL communication service system using a forward deployment type DSLAM and a method thereof are provided to minimize transmission distance between an IP(Internet Protocol)-DSLAM and a subscriber, thereby preventing service speed from being deteriorated even during transmission of speed bigger than 100Mbps, and making a VDSL(Very high-data rate Digital Subscriber Line) service possible by connecting an aggregation switch with the IP-DSLAM, having long transmission distance, through the optical cable. An xDSL(x Digital Subscriber Line) communication service system using a forward deployment type DSLAM comprises the followings: a router(241) of a communication station(240) which routes a packet transmitted through Internet(242); an aggregation switch(232) which is installed in an MDF(Main Distributing Frame) of a complex building and switches the packet transmitted through the router(241); the DSLAM(Digital Subscriber Line Access Multiplexer)(221) which is connected with the aggregation switch(232) through an optical cable(260), and installed in the underground of the complex building; and plural subscriber terminals(212) within the complex building.
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