OIF members voted to start work on a specification for Virtual Network Services (VNS) that could become a main driver for deployment of SDN in Transport Networks. OIF members also passed two implementation agreements addressing OTNv3 and ENNI (External Network-Network Interface), and completed a 100G Carrier Requirements document. The Forum also announced that work on specifications for the CEI-56G project is proceeding rapidly with an interim meeting called to discuss details and advance the effort. CEI-56G will define the next generation of serial electrical interfaces that will enable 400 Gb/s roadmaps.
“This work on VNS is timely as the network struggles to define SDN services for Transport Networks,” said Vishnu Shukla, of Verizon and the OIF president. “The OIF has a history of recognizing gaps in technology through its member interaction between carriers and vendors.”
FREMONT, Calif. -- (BUSINESS WIRE) -- VNS is provided by slicing the network, dividing the underlying network resources, and presenting them to the customer or application as a Virtual Network (VN). The group will look at potential classification of VNS depending on the customer or application needs for varying levels of control of their VN resources.
Implementation Agreements Passed
The OIF OTNv3 Amendment adds support for the latest ITU-T G.709 recommendation. The amendment’s signaling extensions to the OIF UNI and E-NNI and routing extensions to the E-NNI interfaces add support for the OTU and ODU containers, including flexible and re-sizeable ODUflex containers, 2.5G and 1.25G tributary slot granularities, single-stage and multi-stage multiplexing and hitless ODUflex resizing. This enables support for dynamically adjustable client services, e.g. Ethernet, over OTN networks.
The OIF E-NNI Recovery amendments add support for signaling protection and restoration recovery mechanisms to the OIF E-NNI. The amendment’s signaling and routing extensions enable the establishment of multiple associated connections to provide a recovery mechanism to achieve a requested service level. Supported recovery mechanisms include 1+1 protection, soft and hard rerouting and shared-mesh restoration which may be combined to provide even higher service levels.
100G Carrier Requirements Document Completed
Carrier Working Group members completed a requirements document for “Intermediate Reach 100G DWDM for Metro Type Applications”. The document was created to support ongoing work in the OIF’s Physical Link Layer Working Group to produce requirements and application scenarios related to low cost, reduced power and high-density approach for next-gen 100G transmission. The requirements document provides a short description of the metro network constraints and architecture evolution and summarizes the OIF Carrier WG requirements on such interface.
About the OIF
Launched in 1998, the OIF is the first industry group to unite representatives from data and optical networking disciplines, including many of the world's leading carriers, component manufacturers and system vendors. The OIF promotes the development and deployment of interoperable networking solutions and services through the creation of Implementation Agreements (IAs) for optical, interconnect, network processing, component and networking systems technologies. The OIF actively supports and extends the work of standards bodies and industry forums with the goal of promoting worldwide compatibility of optical internetworking products. Information on the OIF can be found at http://www.oiforum.com.