SDN vendors aren't exactly in the clear with providers yet. Four out of five providers don't believe SDN products are quite ready for prime time. Although there's been a flurry of development efforts over the past year, the technology is in its infancy. Still, 17% of providers believe some SDN products are ready for production. Providers like NTT America are already using NEC's OpenFlow switch to support live traffic for its Asia-based cloud services customers.