For new on-demand service delivery, data center, ISP, cloud and service provider network architects must migrate to network designs that meet three requirements:
The ability to move data quickly
The ability to quickly and easily reconfigure to meet changing demands
The ability to deal with new and changing traffic patterns
The industry has responded with software-defined networking (SDN). The key objective of SDN is to deliver open and automated orchestration of networks that matches the level of automation and performance in cloud computing.
But that’s a philosophy, not a solution.
At Corsa, we help solve networking challenges with something tangible and useful. We call it Real SDN where we deliver performance, flexibility and internet scale in a platform with fully open interfaces.
Our solutions aren’t isolated hardware elements rather they are line-rate traffic steering network nodes. With complete traffic management capabilities, they allow operators and architects to switch and route traffic at the per flow level with full statistics that enable real-time traffic analysis and action. Whether running 200G or >1TB of data, Corsa solutions steer and manage with the greatest precision and fidelity.
But regardless of the switching and routing tasks, a Real SDN approach guarantees lean hardware that has been stripped of all the extra bells and whistles that you never needed, never wanted, but inflated your budgets because nothing comes for free.
It’s hard to imagine that a single data plane could suit many SDN applications, but at Corsa we set out to accomplish just that with our programmable hardware solution that is targeted at the WAN and metro edge.
What SDN switching and routing platform do you really need? It depends on what you want to achieve.
What switching & routing platform do you need?
Traffic in metro networks is exploding, characterized by many nodes, with varying traffic flows and a wide mix of services and bit rates. True network hardware virtualization creates virtual switching and routing instances (VSI) at WAN scale.
Network traffic is exploding. Performance SDN lets you augment your existing network edge with per subscriber traffic management to dynamically eliminate congestion problems.
For Internet Exchanges (IX) and ISPs, self-provisioning bandwidth under SDN control is a new bandwidth sales model that lets operators or users provision in minutes rather than months.
Network Appliances and Network Functions Virtualization (NFV) require extremely high capacity network equipment. Performance SDN provides dynamic, line-rate per subscriber parsing of traffic for high-speed applications such as 100G firewalling or DPI.
Implementing BGP gateways with SDN has significant performance benefits and cost savings potential for service provider and ISP backbone or metro networks.
Is this big SDN change doable?
SDN implies an autonomous network that flexes and bends at the command of global control to offer dynamic networks for new service delivery.
For this, we extract the hardware function from the software so the hardware is used where hardware performance is needed. This means it can become the invisible optimization layer, not the capex/opex budget burden it has turned into.
Then you can start tuning the hardware for exactly what is needed. We call this lean hardware. Why buy an expensive big hunk of metal when you only need about 10% of the functionality?
Instead, if the hardware is flexible enough, you can bend and adapt it to meet the need of where it is being used in the network. With a flexible platform, you can then deploy the same lean hardware as various elements in your network, whether at the WAN edge or the campus edge. Then, internet scale performance becomes critical as does the ability to operate at line-rate.
Finally, to achieve automated global orchestration, the hardware needs to communicate to the software in a common language. For SDN to achieve its goal of network programmability, that language must be open, such as OpenFlow.
With all of these elements tied together in a cohesive solution, the real promise of SDN can be achieved.