Learn the many benefits of SDN for clouds and clusters
The benefits of #SDN include flexibility, control, reduced costs and increased performance. As it’s becoming more widely used, you should familiarize yourself with its processes. Software-defined infrastructure is gaining a lot of momentum as the core architecture for the modern data center The aim is to deliver much more flexibility and control to clouds and clusters, while reducing costs and increasing performance.
The networking segment, software-defined networking (SDN), is leading the software-defined infrastructure effort and is already well-defined. Here, the control software for switching is separated from the switch hardware itself and runs on virtual instances in the server farm. This leads to inexpensive switches usingmerchant silicon, which allows low-priced vendors access to the larger market, just one of the benefits of SDN.
SDN coexists with network function virtualization ( #NFV ), with the latter essentially being a use-case of SDN. This is important, since NFV has gained quite a bit of momentum in its own right. SDN is the virtual network viewed from the administration side, while NFV is the view from the data or switch node side. It’s more complex than that, but the result is that we need a mashup of both to achieve fully virtualized networking with centralized control.
Another one of the benefits of SDN is the automated orchestration of services in the data center. We already have that for servers, and extending the method to both networking and storage is seen as an essential step in scaling data center operations. Automation will move operations from its current manual setup process to a script-based system using template libraries.