OPTIMIZED TRANSPORT FOR DSLAM BROADBAND DLC BACKHAUL
Background
The move to Ethernet as a backhauling technology for DSLAMs and broadband Digital Loop Carriers (DLCs) has come a long ways in reducing the overall cost of access infrastructure. There are however still many inefficiencies in the way that we build transport networks for backhauling access traffic that add unnecessary cost to this infrastructure. In addition, the migration to IP/Ethernet as a backhaul technology has created a temporary issue in that for some time we will still have both TDM and Ethernet traffic to deal with creating a need for more efficient multi-protocol multiplexing in access infrastructure.
So, what are the issues with current architectures of optical transport access backhaul networks ?