Software defined networking applies the abstraction concepts of hardware virtualisation to networking infrastructure. This works well for cloud implementations, which need significant configuration and planning. But SDN and network virtualisation may still be too immature for prime time.
If you aren't intimately familiar with software defined networking, don't fret. Only 10 per cent of 450 IT practitioners at a recent Network World event raised their hands when asked if they understand SDN. But if the emerging technology lives up to its promise to redefine networking as we know it, there is no time like the present to dig in and learn more.
Enterprises replacing legacy network infrastructure are increasingly turning to software-defined networks, which can automate an entire network fabric. Having helped hosting companies and academic institutions, a variety of resellers, system integrators and consultancies are ready to bring SDN to the enterprise.