Title :
QoS requirements in DSL networks
Author :
Wright, Steven ; Anschutz, Tom
Author_Institution :
BellSouth Telecommun., Atlanta, GA, USA
Abstract :
We consider the evolution of the DSL access network within the economic constraints imposed by current deployments. We describe requirements and implementation constraints in delivering QoS in DSL access networks. In particular, the need for hierarchical traffic shaping mechanisms in the BRAS (broadband remote access server) to support both upstream and downstream QoS is identified. The need for session dynamic MTU (maximum transmit unit) renegotiation over the DSL line as QoS sessions are created or destroyed also seems appropriate for latency sensitive QoS sessions on low speed DSL upstream links.
Keywords :
broadband networks; digital subscriber lines; quality of service; telecommunication traffic; DSL access network; DSL networks; QoS requirements; broadband remote access server; hierarchical traffic shaping mechanisms; latency sensitive QoS sessions; session dynamic maximum transmit unit renegotiation; session maximum transmit unit renegotiation; upstream links; Access protocols; Asynchronous transfer mode; Context-aware services; DSL; Delay; Intelligent networks; Internet telephony; Network servers; Quality of service; Telecommunication traffic;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258989
