Arelion, trials multi-vendor Routed Optical Networking

Created October 26, 2022
Technologies and Products

Arelion (formerly Telia Carrier), has trialled converged IP and optical networking layers over multiple, third-party, open line systems, using equipment from Acacia and Cisco. On a live fibre route with existing ROADM infrastructure between Hamburg and Copenhagen, Arelion successfully leveraged Acacia Bright 400ZR+ QSFP-DD coherent modules with greater than +1 dBm transmit power between Cisco 8000 and NCS 5700 router platforms.

The trial demonstrated the seamless integration of Routed Optical Networking with DWDM transponders carrying wavelength services and exceeded the performance of the OpenZR+ specification. Through this demonstration of 400G coherent connections, Arelion has also demonstrated the interworking on brownfield long-haul applications built with third-party optical line systems.

Acacia’s Bright 400ZR+ pluggable coherent optical modules can plug into Cisco routers, enabling Arelion’s further adoption of the simpler and more scalable architecture of Routed Optical Networking, combining innovations in silicon, optics and routing systems. This architecture simplifies the network layer stack, and meet the increasing bandwidth demands of Arelion’s customers while greatly reducing capital and operational expenditures.

“Multi-layer architecture has always been challenging to scale and operate due to decades of accumulated complexity. With this latest trial, Arelion demonstrated the possibility to simplify conversion and interoperability, bringing us closer to Routed Optical Networking that evolves cost structures, scalability and efficiency,” said Dariusz Solowiej, VP Network Technology & Customer Operations at Arelion. “400G coherent pluggables will help our customers secure high-performance connectivity at the lowest cost and help us grow our networks in scale as we continue to connect the world.”

“As the latest entrant in our comprehensive family of 400G pluggables, the Bright 400ZR+ QSFP-DD is designed to expand optical transceiver applications by supporting higher transmit power and performance consistent with legacy coherent optics,” Benny Mikkelsen, vice president & chief technology officer at Acacia, now part of Cisco. “The ability of these solutions to meet the varying needs of network operators, while driving economies of scale on a common technology platform, is a key advantage for providers such as Arelion to grow their networks.”

“The convergence of IP and optical networks provides a revolutionary reduction in network cost and simplifies management of the network,” said Bill Gartner, senior vice president & GM of the Optical Systems & Optics Group at Cisco. “This will enable Arelion to cost-effectively scale their network as bandwidth demands increase over time, enabling them to maintain their growth and protect their investment over the next 10-15 years.”

Arelion says it plans to provide its North American and European customers with enhanced access to its internet backbone, AS1299, as well as its portfolio of IP and optical technology services, including high-speed IP Transit, Cloud Connect, Wavelengths, Ethernet and SD-WAN.

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This article was written
by Peter Dykes

Peter Dykes is a independent telecoms and technology journalist who has over that last 30 years written for a wide range of B2B publications and companies. A former BT engineer, he specialises in networks and associated support systems. He is currently Editor of Optical Connections.