CALIENT Technologies

Move the light, not the fiber

CALIENT Rolls Out Optical Circuit Switching-based SDN Transport Interconnect Solution at Optinet China

Company to Preview Optical Architecture to Interconnect Transport Networks Across Geographic and Multi-Vendor Network Domains

Santa Barbara, CA, June 16, 2015 — CALIENT Technologies, Inc., the global leader for optical circuit switching technology, today announced it will debut a new software-defined networking (SDN) transport interconnect network architecture at the Optinet China Conference in Beijing.

CALIENT is a silver sponsor of the event and will have its S-Series Optical Circuit Switch (OCS) family on display at its booth.

In addition, CALIENT’s Technical Director for Greater China, Hongliang Qu will make a presentation on new network architectures that leverage the economic and operational advantages of OCS in data centers and SDN-controlled metro and wide area network transport fabrics.

SDN Transport Limited By Network Boundaries

The promise of SDN is that a global software controller can more efficiently route data through a network, optimizing multi-layer switching and avoiding congestion to deliver better throughput and network utilization.

But network segmentation created by equipment from different vendors and geographic domains serves to partition the network and dramatically reduce the benefits of SDN.

In his presentation, Qu will discuss how adding Optical Circuit Switching under SDN control at the network edges and between network domain boundaries eliminates the impact of these boundaries. Instead it provides flexible optical on-off ramps bridging multiple vendor networks and domains, and enabling operators to fully realize the benefits of SDN transport optimization.

The OCS deployed at the network edge allows any client side resource to be connected to any network resource. This supports network-wide SDN control of the optical layer whether a new or legacy network. Service providers and data center operators can then virtualize and control all of the disparate resources in their optical transport networks.

“We pioneered the use of SDN with Optical Circuit Switches and as we have worked with carriers we’ve seen that the gaps between vendor and domain boundaries are a real challenge to realizing the full value of the multi-layer optimization that SDN can deliver,” said Daniel Tardent, CALIENT’s Vice President of Marketing. “In our internal research with carriers, we’ve seen estimates of 30 to 50 percent savings potential in network capex on core router investments. We’re excited for the opportunity to discuss this concept at Optinet.”


CALIENT’s S-Series includes the S320, 320-port Optical Circuit Switch, and the S-160, 160-port Optical Circuit Switch. The switches allow any-to-any network connections with almost no latency and can be reconfigured on demand through network management or SDN controllers.

For additional information on this Optimized SDN Transport and DCI Networks solution, please visit the CALIENT website.

About CALIENT Technologies

CALIENT Technologies is the global leader in pure photonic Optical Circuit Switching with systems that enable dynamic optical layer optimization in next generation datacenters, software defined networks, and media production facilities worldwide. CALIENT’s 3D MEMS switches provide optical path switching at up to seven-times lower cost than conventional packet-based solutions. The company designs and builds its systems using its own state-of-the-art MEMS Fab facility located at its corporate headquarters in Santa Barbara, California. For more information, visit CALIENT 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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David Rodewald/Elisabeth Glover