Telia Carrier taps Acacia for OpenZR+ coherent pluggables

Created January 5, 2021
News and Business

Telia Carrie, which is preparing to converge its IP and optical networking layers to simplify its networks. The operator will be using Acacia’s 400G coherent modules which plug directly into Cisco routers Telia Carrier says this architecture will enable it to address increasing bandwidth demand while significantly reducing both capital and operational expenditures.

In preparation for this new solution, Telia Carrier has already deployed open line systems and terminal equipment that can support new 400G pluggable technology. As an early adopter of this architecture, Telia Carrier is one of the first network operators to perform full end-to-end validation of the solution. Leveraging Acacia’s 400G QSFP-DD coherent modules with OIF 400ZR and OpenZR+ operating modes, the solution can support data rates from 100G to 400G depending on the desired reach. The modules also support client n x 100GbE multiplexing functionality as well as 400GE transport.

Telia Carrier’s network architecture Source: Telia Carrier 

“Conventional architectures and technologies built on decades of accumulated complexity and yesterday’s truths fall short in helping us keep up with customer demands for more, consistent bandwidth and a high-quality experience. Starting in the metro, standardised coherent pluggable modules are the next natural step in evolving cost structures, efficiency and scaling capabilities. This follows our global deployments of open optical line-systems and bandwidth-optimised switch-router silicon already powering thousands of 400GE capable ports in the network,” said Staffan Göjeryd, CEO at Telia Carrier

“Pluggable 400G coherent optical transceiver modules are important to enable service providers such as Telia Carrier to migrate to a more converged network architecture capable of enabling OpEx and CapEx savings, as well as a pay as you grow business model,” said Fenghai Liu, vice president of product line management at Acacia Communications. “Coherent pluggables, like Acacia’s 400G coherent module, have been designed to provide a scalable and cost-effective way to meet increasing bandwidth demands.”

“Adding support for pluggable 400G optics directly into mass-scale routing platforms allows operators to converge historically complex infrastructure into a simple, single layered architecture. The benefits – easier to maintain, faster to adapt, and cheaper to operate – are so compelling that we expect communication service providers to aggressively transition existing metro and long-haul networks to a Routed Optical Networking solution. This architecture can cost-effectively handle the projected traffic growth for the coming years while preparing to support the next transition to 800G or beyond,“ said Kevin Wollenweber, VP/GM mass-scale infrastructure routing and automation at Cisco.

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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.