Türk Telekom (TT) recently announced that together with its Netsia subsidiary Argela, the successful launch of a commercial broadband network in Turkey which is being used to deliver high speed Internet, IPTV and voice services in two Turkish cities. This landmark achievement benefits from using a disaggregated, virtualized and programmable open source platform, in the form of ONF’s SEBA blueprint and the open source software VOLTHA and ONOS combined stack that enables accelerated rollout of new services.
ONF’s SDN-Enabled Broadband Access (SEBA) Reference Design defines how operators are virtualizing their PON networks used to deliver fixed access services. SEBA optimizes constrained resources with faster service enablement leveraging the economies of white box hardware with a cloud native software architecture. The TT network utilizes Virtual OLT Hardware Abstraction (VOLTHA) open source software controlled by the ONF’s ONOS SDN Controller and a set of ONOS Apps. This VOLTHA+ONOS stack enables operators to extend software defined programming to the fixed access network with customized support for each operator's unique services and workflows. Modularity and programmability allows adoption of a best-of-breed approach in their choice of white box network equipment and various open and vendor proprietary software components.
Yusuf Kıraç, Chief Technology Officer for Türk Telekom commented that “thanks to SEBA, we are optimizing our network infrastructure with open technologies that minimize vendor lock-in and enable us to use best-of-breed technologies for delivering the best possible end user experience.”
Netsia, TT’s Silicon Valley subsidiary, took an active role in collaborating with the ONF community to develop a hardened carrier-grade version of SEBA, with a special focus on VOLTHA and ONOS. ONF’s SEBA, VOLTHA and ONOS projects are a collaborative endeavor among ONF, ONF operator partners AT&T, Deutsche Telekom and Türk Telekom, plus the ONF community.
For more in-depth insights about Türk Telekom’s broadband network, check out this TT SEBA overview presentation by Süleyman Çimen and a more detailed TT SEBA presentation by Cemil Soylu which were part of the virtual ONF Broadband Spotlight.