Is it too early or too late to declare 2012 the year of SDN? IBM and NEC introduced integrated technologies around OpenFlow for enterprise data centers. Nicira went public with its Distributed Virtual Network Infrastructure (DVNI) Nicira gave itself a go-to-market advantage as it does not advocate a rip-and-replace hardware strategy. Network service providers and cloud computing service vendors are feeling the effect of data center networking discontinuity so it is logical for them to experiment with cutting edge technologies.”]