Carrier speeds are set to be quadrupled following a successful trial of live traffic running at 400Gbps between New York City and Washington. AT&T, working with Viavi Solutions, says it carried Ethernet services at that speed over a commercial system between the two cities carrying live traffic at 100Gbps. The company’s senior vice president for network product management, Rick Hubbard, said: “Our approach to roll out the next generation of Ethernet speeds is working.

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