TAILIEUCHUNG - LoopStar® 700 Ethernet Access and Transport

As service demand grows in metro networks, service providers need to be cost-conscious as they expand or evolve networks to meet new demands. They need to extend the value of installed systems, run more services on existing networks, and retain customers by offering on-demand access to a variety of services. And they want to reduce the cost of providing those services. SONET and SDH have been widely deployed by telephone companies and common carriers for more than a decade. This reliable, Layer 1 transport technology, based on time-division multiplexing (TDM), continues to reap revenues from traditional voice and leased-line data traffic | LoopStar 700 Ethernet Access and Transport Expanding Legacy SONET SDH and TDM Networks to Drive Metro Ethernet Revenues Overview As service demand grows in metro networks service providers need to be cost-conscious as they expand or evolve networks to meet new demands. They need to extend the value of installed systems run more services on existing networks and retain customers by offering on-demand access to a variety of services. And they want to reduce the cost of providing those services. SONET and SDH have been widely deployed by telephone companies and common carriers for more than a decade. This reliable Layer 1 transport technology based on time-division multiplexing TDM continues to reap revenues from traditional voice and leased-line data traffic. However the growing popularity of Ethernet raises new issues for SONET SDH metro networks. As customers seek to extend Ethernet services across multiple locations in a city or region SONET SDH networks have to adapt in response. The winning solution for today s metro market is a platform that extends the value of carriers investments in SONET SDH while delivering all of their metro services economically flexibly and reliably. That solution is ADC s LoopStar 700 converged packet access platform - a metro edge solution that bridges the TDM and packet worlds to deliver flexible high-speed Ethernet services over existing SONET SDH backbones. APPLICATION NOTE Effective SONET SDH Solutions for Today s Multi-Service Realities Service providers need to determine the best way to support diverse subscriber-side services on a transport infrastructure that wasn t originally designed for Ethernet. They also have to find the best way to reach all locations with a cost-effective and universal solution. Some carriers have considered separate overlay Ethernet networks for packet traffic. However this approach requires additional fibers and is costly inefficient complex and hard to provision and manage. It also leaves the carrier

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