Spain’s Telefónica and Chinese behemoth Huawei have successfully completed laboratory tests on the latter’s Transport Software-Defined Network (T-SDN) solution. This controller incorporates improvements for the planning, management, monitoring and diagnosis of Telefónica España’s photonic mesh. The tests pave the way for future all-optical transport and the commercial deployment of T-SDN.
In 2009, Telefónica began deploying its largest photonic mesh network, covering more than 200 locations throughout Spain. The network used Reconfigurable Optical Add/Drop Multiplexer (ROADM) technology and an advanced network control plane. This improved the reliability and flexibility of the service, but also posed challenges for Operation and Maintenance (O&M). To address these challenges, Telefónica has tested the benefits of the T-SDN solution with Huawei. The new centralised controller developed by Huawei can be used as the network’s “brain” to obtain real-time information and to use online incident simulations to compile reliable information on the service. The aims are to rapidly identify the risks to the service and to prevent potential network fault incidents.
The centralised T-SDN algorithm can also be used to optimise the spectrum, and to improve the reliability and performance of the new Wavelength Division Multiplexing (WDM) networks. In addition, Huawei is developing a new platform known as Network Cloud Engine (NCE) to integrate the online WDM planning tool, the control plane and the network management system.
“We were interested in seeing how T-SDN technology can help Telefónica in many different areas. Firstly, we’d like to improve the performance of the WDM control plane, helping to reduce restoration times,” comments María Antonia Crespo, Director of IP Connectivity and Transport at Telefónica España. “We also hope that it will enable Telefónica to manage its resources more efficiently and improve its network diagnoses. Finally, it will be very useful for us if we can move towards the automation of the network, as this is one of the key goals in Telefónica’s strategy for the coming years.”
“This solution has been implemented in more than ten networks for customers in different countries, and has supported diverse business scenarios, including finance, governments, leased company lines, the media industry and datacentre interconnect,” adds Huawei President of Transmission Richard Jin.