AT&T completes 400 Gigabit Ethernet trials using OpenROADM

Sept. 11, 2017
AT&T says it has completed its previously announced field test of single-wavelength 400 Gigabit Ethernet (400GbE) across its production network. The trial used metro open optical systems from the OpenROADM project as well as open-source controller technology.

AT&T says it has completed its previously announced field test of single-wavelength 400 Gigabit Ethernet (400GbE) across its production network. The trial used metro open optical systems from the OpenROADM project (see "AT&T field tests Open ROADM technology") as well as open-source controller technology.

Ciena (NYSE:CIEN) supplied the open optical systems, AT&T said. Other optical transport systems vendors active in previous AT&T OpenROADM trials include Fujitsu Network Communications and Nokia. The service provider says use of the OpenROADM technology, open-source controller, and what it called "open-sourced white boxes" are emblematic of its desire to create an open, software-centric network. Such an infrastructure will help control costs and create interoperability among foundational network hardware elements, AT&T believes (see "AT&T: Operators should take more responsibility for their network technology").

The field test was the last phase of a multi-phase trial (see "AT&T completes 400GbE first phase trial, ready for OpenROADM phase"). The trial positions AT&T to add 400GbE capabilities to its network backbones. "Introducing 400GbE is a natural next step. Customer demands have shifted to faster speeds, more video-centric content and cloud integration," said Roman Pacewicz, chief product officer, AT&T Business. "We consistently provide top-quality services to businesses and are proud to pave the way for this industry innovation."

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About the Author

Stephen Hardy | Editorial Director and Associate Publisher

Stephen Hardy has covered fiber optics for more than 15 years, and communications and technology for more than 30 years. He is responsible for establishing and executing Lightwave's editorial strategy across its digital magazine, website, newsletters, research and other information products. He has won multiple awards for his writing.

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