Calix AXOS operating system aims for SDN-enabled access networks

Broadband access network technology provider Calix, Inc. (NYSE: CALX) has introduced the Linux-based Access eXtensible Operating System (AXOS), designed to help operators apply software-defined networking (SDN) to their access networks.

Use of AXOS enables all software functions in the access network to be developed and run without relying on the underlying hardware and associated silicon chipsets, Calix says. The result is an always-on architecture and consistent provisioning services, which Calix asserts will speed time-to-revenue, eliminate service disruptions, and reduce operational complexity.

AXOS consists of modular, reusable software components that Calix says can run on "technologically diverse hardware" without modification. It supports in-service upgrade capabilities with built-in logic that eliminates service disruptions, constrains and automatically recovers from faults, and prevents problems new software functions or human error might otherwise cause.

Use of open, standards-based, fully programmable management and control APIs reduce operational complexity and enable automated workflows, as well as offer compatibility with SDN-aligned operational support systems, the company adds. For example, all components and operational functions within AXOS use standard NETCONF protocol and YANG data models, Calix explains.

"For over a decade now, Calix has been in pursuit of a unified access infrastructure that would seamlessly connect the device-enabled subscriber to the applications and content in the cloud," said Michel Langlois, senior vice president of systems products at Calix. "With AXOS, we now have a single software platform that places the communication service provider in the unique position to distribute services and intelligence across the entire access network with a distributed architecture. Thus, each service provider armed with the AXOS platform can choose between a wide spectrum of system form factors and merchant silicon capabilities, a key advantage and critical success factor in building service velocity and creating competitive advantage."

"The same SDN and NFV concepts that are enabling improved economics, scale, velocity, and agility in the data center apply to the access network. Both environments seek to rapidly deliver new services, meet customer demand 24/7 and contain operational costs," said Julie Kunstler, principal analyst at Ovum, via a Calix press release. "The application of SDN and NFV in access requires the replacement of monolithic software architectures with virtualized, componentized, extensible, and optimally distributed systems that support access networks from subscriber premises all the way to the access edge of the data center. Major service providers have been upfront about their respective plans to pursue this direction. This evolution is becoming a key competitive advantage and AXOS supports this evolution."

Calix has demonstrated AXOS running on its G.fast platforms; the company says it also supports AXOS on the Calix E5-520, E5-308, and E5-306 MEF CE 2.0-certified systems. AXOS support will extend to other E-Series systems in the future, Calix concludes.

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