CALIENT Technologies

Move the light, not the fiber

CALIENT Technologies Announces Availability and Interoperability Results of OpenFlow API For S320 Optical Circuit Switch

For Immediate Release

 New API Demonstrates Base Line Interoperability with Leading Commercial Controllers; Enables SDN-based Hybrid Packet / Optical Data Center Networks

 Santa Barbara, CA, Sept. 09, 2013 — CALIENT Technologies, Inc., the global leader for photonic switching technology, today announced preliminary interoperability testing results of its newly available OpenFlow software-defined networking (SDN) application programming interface (API) for its S320 optical circuit switch.

The S320 will be on display at the 2013 High Performance Computing for Wall Street show taking place today in New York City.

In testing by Tallac Networks, using the testing facilities of the InCNTRE lab at Indiana University, the S320 OpenFlow API provided a base level of interoperability with several industry leading commercial SDN controllers. Similar compatibility was achieved with the Floodlight open-source controller that featured CALIENT-developed S320 extensions.

In the testing, equipment operators using these controllers were able to dynamically discover and initiate connections through the switch and instigate a real-time view of the network topology.  Operators also were able to define paths through the switch based on end-point addresses for easy network configuration.

Together with an OpenFlow controller, the new API allows the S320 to reconfigure datacenter networks to optimize high-capacity data flows, such as virtual machine migrations or storage back ups, at the optical layer and to function as part of a software-defined hybrid packet-circuit switched network.

“We’re excited to be announcing the availability of our new API for OpenFlow for the S320,” said Daniel Tardent, CALIENT’s VP of Marketing. “We’ve had overwhelming response to the hybrid packet-circuit switch network solution, as the flexibility and performance improvements are demonstrable. We are looking forward to getting this into more customer trials and production networks to better show off its capabilities.”

S320 Technical Highlights

The CALIENT S320 optical circuit switch is based on CALIENT’s proprietary 3D microelectromechanical (MEMS) technology.  The switch supports up to 320 ports (320 input ports and 320 output ports) and has a capacity of more than 32 Tbps and supports per-port data rates of more than 100 Gbps. Completely agnostic to data protocols, the S320 allows any-to-any network connections with almost no latency (<60 ns).

The S320 chassis fits in a 19” rack. Maximum power consumption is 45 watts, and the switch has a total of 640 fiber terminations supporting wavelengths from 1260nm to 1650nm.

About CALIENT Technologies

Headquartered in Santa Barbara, CA, CALIENT Technologies is the global leader in adaptive photonic switching with systems that enable dynamic optical layer optimization in next generation data centers and software defined networks. CALIENT’s 3D MEMS switches have demonstrated years of reliability, with eight years of successful continuous operation. With more than 80,000 optical terminations shipped, CALIENT has one of the largest installed bases of photonic switches worldwide.   For more information, visit us at, on Twitter and LinkedIn or contact us at

Media contact for CALIENT Technologies:

CALIENT Technologies PR Team

David Rodewald

+1 805-494-9508


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