Maximizing DSL Performance in the Field with Dynamic Line Management

Dynamic Line Management (DLM) is operational in many Digital Subscriber Line (DSL) networks worldwide covering various use cases such as network stabilization, open-pipe architecture, service upgrade, and profile grooming. In this paper, the authors present the results of a 30 day field trial of the 5530 Network Analyzer DLM (R6.1) on over 1000 DSL lines in a live ADSLx network. A vast improvement in throughput for IPTV lines was proven, while maintaining the service stability. The data rate performance of the IPTV lines was increased by 30%, which allows offering an additional SDTV channel or the replacement of a SDTV by a HDTV channel. For the HSIA lines, DLM realized an improved service stability without degrading the data rate.