The Optical Internetworking Forum (OIF) has released a whitepaper that provides the carrier perspective on 400 Gbit/s technology options and its impact on future high-capacity WDM applications.
The OIF has also approved implementation agreements (IAs) that outline service provider requirements for 'neighbour discovery' and updated specifications for the industry standard integrable tunable laser MSA.
400 Gbit/s technology whitepaper
In an effort to bring order and clarity to the development of 400 Gbit/s transport solutions, the OIF's 400 Gbit/s whitepaper summarises the technology options for specific applications such as long-haul, metro and data centre interconnect. Entitled Technology Options for 400G Implementation, the whitepaper provides a consensus view from carriers on the system parameters and network requirements needed for 400 Gbit/s to support higher bandwidth demands in optical networks.
The OIF whitepaper Technology Options for 400G Implementation can be downloaded here.
As service providers seek to reduce operating costs in optical networks, one means of doing so is to automate link configuration processes. Automating link identification and exchanging the link configuration data is termed neighbour discovery, for which the ITU-T has defined an architecture and protocol within G.7714 and G.7714.1, although implementation of the specifications has been limited.
The OIF's new neighbour discovery IA 1.0 uses the ITU-T specifications to support the exchange of:
- Identity of the network element port connected to the far end of the link.
- Data plane capability of the network element ports on each link end.
- Management plane details for each link end.
- Control plane details for each link end.
The specification provides carriers with an interoperable solution including use cases, requirements, procedure and protocols conforming to the ITU-T specifications.
In addition, as the OIF continues to build on the industry standard for tunable lasers it has updated the existing MSA and assembly IA to add the functionality required for next generation, flexible networks. Specifically, the new integrable tunable laser assembly MSA (ITLA-MSA 1.3) and micro-integrable tunable laser assembly IA (OIF-MicroITLA-01.1) updates add the provision of high resolution registers and raise the protocol version to 3.0.0.