... Telstra Corp.'s stance is helpful in this respect. It is not only a pioneer, but a vocal proponent of SDN. The company isn't working alone: It has been collaborating with Ericsson on its first SDN use case -- service chaining -- since 2012 and acknowledges the support that a large vendor with longstanding credentials in the SDN domain can give. It also has a clear timescale for introducing SDN technology into its network. Telstra expects to move to field trials later in 2013 and to take the first steps toward operationalizing SDN in its production network in 2014. Telstra is trialing a service chaining capability that uses Openflow to support the dynamic sequencing of network services. The SDN theory Telstra is testing is whether Openflow-based service chaining can support application delivery more cost-effectively and with a higher level of customer experience than current approaches to configuring the network. Telstra wants to create a flexible and dynamic network environment in which packets can be routed through specific -- and reusable -- network services on-demand. ...

China Telecom은 LTE Backhaul망을 IP/MPLS (L3 VPN)으로 하려다가 SDN으로 방향을 바꾸고 있네요. 400,000개의 기지국에 IP/MPLS Router (VRF)를 두고 Config하고 운영하기가 쉽지 않다고 본 거고 Cell Site에 위치하는 네트워크 장비는 OPEX를 절감하기 위해 최대한 Dumb해야 한다고 본 거지요. http://www.opennetsummit.org/archives-april2013/ 에 가셔서 Vendor Customer Panel을 클릭하면 동영상 발표를 볼 수 있습니다.