Big Switch Announces OpenFlow-based Overlays In “Corona” Beta Release

OpenFlow SDN vision of “any machine anywhere” now compatible with any physical network

PALO ALTO, Calif., June 6, 2012 – Big Switch Networks, the leader in Open Software-Defined Networking (SDN), announced this week that it has incorporated OpenFlow Overlay technology into the Corona (June) beta of its Big Virtual Switch application, the company’s flagship SDN application for network virtualization built on the Big Switch Controller Platform.

OpenFlow Overlays allow for virtual OpenFlow networks to be overlaid on top of traditional, non-OpenFlow physical networks, bringing SDN network virtualization within reach of any enterprise. The key benefit, placing any VM anywhere in the data center to reclaim stranded compute capacity, is currently being tested by beta customers.

This release makes Big Switch Networks the first company to provide Overlays compatible with both OpenFlow-enabled vSwitches and OpenFlow-enabled physical switches. By using OpenFlow, Big Switch customers can make independent controller, vSwitch and physical switch decisions, choose from a rapidly growing ecosystem of both commercial products and open source implementations, and avoid forklift upgrades.

“OpenFlow Overlays are a great way to get started with SDN vision – getting subnets and vlans out of the way. This approach to Overlays is both backward-compatible with networking hardware already in place and forward-compatible with OpenFlow hardware for a smooth migration path to SDN,” says Omar Baldonado, Head of Product Management at Big Switch Networks. “Our vision is that OpenFlow Overlays aren’t the end goal, but they let enterprises get started with an Open SDN architecture that works on top of the network they have today.”

As data centers expand and the ecosystem of vendors grows, customers are looking for solutions that enable choice and interoperability in their data centers, and the Open SDN architecture delivers those solutions. Big Switch Networks is now entering controlled release to offer OpenFlow/SDN solutions, including OpenFlow Overlays, to an even broader set of customers.

About Big Switch Networks

Big Switch Networks was founded in 2010 to bring cloud innovation to enterprise networks using OpenFlow-based Software-Defined Networking. Big Switch Networks is headquartered in Palo Alto, California. For more information, visit


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