sub-loop unbundlingとは 意味・読み方・使い方

In the telephony business, Sub-loop unbundling (SLU) is the process by which a sub-section of part of the local loop is unbundled. In practice this often means the competitor placing a small street cabinet with a DSLAM, next to a telco local copper aggregation cabinet or Serving area interface and using a 'tie cable' to connect to the last part of the local loop into customers' homes. The short range brings superior bit-rate performance, compared to normal Local loop unbundling (LLU). The local loop can be accessed using shared metallic path or full metallic path facilities. In the latter, which was first deployed in the UK in the village of Lyddington by Rutland Telecom, the telco loses remote access to the part of the local loop between the cabinet and the customer's premises unless the SLU Operator allows IP-level access via their DSLAM.