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This paper briefly reviews ITU-T recommendations associated with multi protocol label switch (MPLS) and Ethernet operation, administration, and maintenance (OAM). The broadband convergence network (BcN) architecture with a centralized network controller is introduced. An aggregation structure employing Ethernet, MPLS, and time division multiplexing (TDM)(More)
Existing Internet has problem in many areas such as reliability, service availability, and manageability. Active research has been done to solve this problem. In Korea, BcN was developed to solve the well known Internet problem and to achieve the fixed-mobile convergence services. This paper explains the philosophy and design principles of BcN architecture.(More)
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