Cyan said its approach makes sense because the vast majority of metro traffic is transit, with static connections that do not require higher layer routing. Therefore, using routers across the metro only adds complexity and cost. Cyan's multi-layer uses a SDN control plane for planning, operations and validation.
"Routers play an important role in the network, but the majority of services do not require routing and can be offloaded to reduce costs and simplify operations. Our Z-Series platforms and SDN software are helping more than 100 service providers around the world achieve these goals in a variety of applications," said Michael Hatfield, president at Cyan.
http://cyaninc.com/
