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Nortel Rolls out Provider Backbone Technology

Telecommunications equipment maker Nortel has said that it has developed a new technology to be the foundation of service provider metropolitan networks. Now available in its Metro Ethernet Networks portfolio, the new technology - called Provider Backbone Transport (PBT) - is designed to allow service providers to deliver the communication and entertainment services of the future to consumers and companies across cities and countries.

PBT transforms Ethernet technology, traditionally restricted to small-scale, local networks, into a more reliable, scaleable and deterministic technology making it suitable as the basis for fixed and mobile carrier networks to deliver live video and broadcast, multimedia, broadband data and voice services.

"Nortel has been working with several major service providers that are very interested in the potential benefits of deploying PBT as a metro networking technology," said Philippe Morin, president, Metro Ethernet Networks Nortel. "PBT is designed to provide reliability and determinism equal to SONET and SDH while retaining the cost and simplicity of Ethernet – a combination ideal for a carrier network environment."

PBT also helps resolve issues with Ethernet’s scalability, helping conserve network resources that would otherwise be taken up by the constant communications between large numbers of Ethernet devices in the network.


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