Fremont, Calif.—May 8, 2019 – At NGON, May 21-23, 2019, OIF experts will kick off the Optical Masterclass Series with a comprehensive update on its 400ZR, Common Electrical I/O (CEI)-112, Flex Ethernet (FlexE) and Software Defined Networking (SDN) projects.
“OIF’s interoperability solutions are vital to the global network and with many of the key network operators in attendance, NGON is the ideal platform to provide updates on OIF’s work in 400ZR, CEI, FlexE and SDN,” said Dave Brown, Nokia and OIF Director of Communications.
The “Optical Masterclass Series – The Optical Internetworking Forum” session is being held Tuesday, May 21, 2019 from 09:00 – 11:00 (NEW TIME AS OF 5/16). Brown and Karl Gass, OIF Physical & Link Layer Working Group Vice Chair, Optical, will discuss how OIF is assuring interoperability in open, agile, next-generation optical networks and provide updates on crucial industry projects.
OIF’s 400ZR project is critical in facilitating the reduction of cost and complexity for high bandwidth data center interconnects and promoting interoperability among optical module manufacturers. This Implementation Agreement (IA) will specify an interoperable digital coherent 400ZR interface targeted at short reach (80 km or more) DWDM amplified noise limited links and unamplified loss limited links.
The CEI project update will include discussion of the multiple 112 Gb/s interfaces being deﬁned by OIF including CEI-112G MCM, XSR, VSR, MR and LR. Applications of these 112 Gb/s interfaces include die-to-die, die-to-OE (optical engine) on package, chip-to-module, chip-to-chip and chip-to-chip long reach over backplane and cables.
OIF continues to lead in FlexE aggregation architectures through its newest FlexE 2.1 project for FlexE over 50GbE PHY applications, an extension to its FlexE 2.0 Implementation Agreement (IA). FlexE 2.1 will specify a 50G FlexE frame and multiplexing format and will address FlexE applications with lower bandwidth needs and provide an implementation foundation for applications including the access layer of the future 5G mobile network.
In November 2018, OIF announced the launch of “Requirements for Integrated Packet Optical SDN.” The project outlines requirements for a multi-layer SDN reference architecture as a use case for packet optical transport networks. It will generate functional requirements, a reference architecture and use cases for packet/optical networks guided by the vision to enable agile, open network solutions that simplify operations and optimize resource utilization.
The session will also include an update on the Integrated Coherent Transmit-Receive Optical Sub Assembly (IC-TROSA) project that defines a standard optical component containing a complete coherent modem. The availability of highly integrated components accelerates the adoption of coherent transmission into additional markets.
Additionally, Gass will participate in Wednesday’s Plenary session, 09:30 – 10:10, “Present View: To the terabit & beyond – practicalities for coherent transmission.” Also on Wednesday, from 14:35 – 15:30, Brown will speak on the “Open Source Approach: Looking at disaggregation as a pathway for multi-vendor cooperation, interoperability and driving enhanced network interfaces” panel.
Check the status of OIF’s current work here.
Optical Internetworking Forum (OIF) is where the optical networking industry’s interoperability work gets done. Celebrating 20 years of effecting progressive change in the industry, OIF represents the dynamic ecosystem of 100+ industry leading network operators, system vendors, component vendors and test equipment vendors, all collaborating to develop interoperable electrical, optical and control solutions that directly impact the industry’s ecosystem and facilitate global connectivity in the open network world. Connect with OIF at @OIForum, on LinkedIn and at https://www.oiforum.com/.
Wilkinson + Associates for OIF
Aimed predominantly at short-reach, single-span fiber optic links for Data Center Interconnect (DCI), 400ZR is an interoperable networking Implementation Agreement (IA) in progress by the OIF. It defines a footprint-optimized solution for transporting 400Gb Ethernet over DCI links targeting a minimum of 80 km. Enabled by advanced coherent optical technology design targeting small, pluggable form factor modules such as QSFP-DD and OSFP, 400ZR proposes a technology-driven solution for high capacity data transport, matched to 400GE switch port market introduction.
(Sponsored by Ciena)
Microsoft, which not too long ago was facing irrelevance, is successfully riding the cloud to reestablish itself and brighten it prospects.
The company’s research and development efforts, the Playbook says, focus on AI, quantum computing, productivity tools, streaming cloud-based gaming, and networking. “Scaling the cloud requires not only more data centers, but also faster intra- and inter-data center connectivity links,” Menon wrote. “For instance, Microsoft is very active with the OIF in pushing 400ZR, a 400 Gbps link specification for data center interconnect.”
Heavy Reading’s optical expert Sterling Perrin discusses some of the major trends in transport network technology at this year’s OFC event in San Diego, including 5G Transport, 800G and 400ZR.
Demo aimed at accelerating commercialization of Transport SDN
Fremont, Calif.—May 22, 2018 – The OIF (Optical Internetworking Forum) today announced plans for its public read-out events to present the results of the 2018 Software-Defined Networking (SDN) Transport Application Programming Interface (T-API) interoperability demonstration. This year’s demo, in collaboration with MEF, is focused on accelerating the commercialization of Transport SDN through validating the industry leading T-API 2.0 northbound interface (NBI) from the Open Networking Foundation (ONF). ClicktoTweet
The multi-vendor demo includes testing new dynamic behavior use cases and deployment scenarios by network operators CenturyLink, China Telecom, SK Telecom and Telefónica. Participating vendors include ADVA, Coriant, Infinera, NEC/Netcracker, Nokia and SM Optics. Centre Tecnològic Telecomunicacions Catalunya is the participating academic and/or research institution and TELUS Communications is participating as a consulting network operator.
This year’s demo incorporates service provisioning scenarios at the LSO Presto reference point in the MEF LSO architecture, using the MEF NRP Interface Profile Specification (MEF 60), which defines T-API extensions in support of Carrier Ethernet services.
“The OIF multi-vendor interop testing is particularly important to Telefónica’s network transformation. We are anxious to validate T-API as the standard NBI for Transport SDN and announce the results in June,” said Juan Pedro Fernández Palacios, Telefónica.
The results of the demo will be presented during a featured workshop and keynote presentation at NGON & DCI Europe 2018, the world’s leading strategic and technical optical networks event being held in Nice, France, and during two private events at participating network operator labs.
Public Event: NGON & DCI Europe 2018 (Nice, France), Tuesday, June 26, 2018, 10:00am-12:00pm
Optical Masterclass: Speakers will discuss how OIF is assuring interoperability in open, agile next generation optical networks and present updates on critical projects including CEI-56G and CEI-112G, FlexE 2.0, 400ZR and Transport SDN.
- Welcome & Overview – Dave Brown, OIF President, Nokia
- Physical & Link Layer Working Group (PLL WG) Overview – Karl Gass, OIF PLL WG Vice Chair Optical, OIF
- FlexE 2.0 – Dave Ofelt, OIF PLL WG Vice Chair Protocol, Juniper Networks
- Networking Projects Overview – Lyndon Ong, OIF Market Awareness & Education Committee Co-Chair – Networking, Ciena
- SDN Transport API Work/Interoperability Demonstration – Jonathan Sadler, OIF Board Member and Networking Interoperability Working Group Chair, Coriant
Additionally, Palacios, Head of Unit at Telefónica, will discuss the demo results and present use cases during his keynote presentation – Transport API: Standardization status, interoperability tests and use cases – on June 27th at NGON.
Invitation-Only: CenturyLink and China Telecom
Two invitation-only read-out events will be held in July. CenturyLink will hold a private read-out event on July 10 in Denver, Colorado and China Telecom will host a private read-out in Beijing on July 19. Members of the media and analyst community interested in attending, please contact email@example.com.
A technical white paper and an executive summary of the demo result will be available in August.
Additional information can be found at http://www.oiforum.com/meetings-and-events/2018-oif-sdn-t-api-demo/
About the OIF
The OIF facilitates the development and deployment of interoperable networking solutions and services. Members collaborate to drive Implementation Agreements (IAs) and interoperability demonstrations to accelerate and maximize market adoption of advanced internetworking technologies. OIF work applies to optical and electrical interconnects, optical component and network processing technologies, and to network control and operations including software defined networks and network function virtualization. The OIF actively supports and extends the work of national and international standards bodies. Launched in 1998, the OIF is the only industry group uniting representatives from across the spectrum of networking, including many of the world’s leading service providers, system vendors, component manufacturers, software and testing vendors. Information on the OIF can be found at http://www.oiforum.com
Wilkinson + Associates for the OIF
The Optical Internetworking Forum (OIF) announced that it has begun work on long reach (LR) and medium reach (MR) CEI-112G, building upon two existing 100G serial electrical link projects. Forum members continue to support and approve the development of projects addressing CEI-112G as bandwidth needs increase. Dr. Chongjin Xie of Alibaba was invited to present to members at the quarterly meeting in Shanghai. Dr. Xie shared with members the need for various network technologies, innovations and breakthroughs for datacenters. Following the meeting, the members participated in an OIF Day with China Unicom and SK Telecom.
The CEI-112G-LR project defines an interface to enable high-loss 112G backplane channels. This project will also facilitate direct attach copper (DAC) cable channel links at 112G. The CEI-112G-MR project will develop specifications for a chip-to-chip (c2c) interface which can also be used to support applications of 112Gx2 (224G), and 112Gx4 (448G) with reduced power, complexity, and enhanced density.
“These projects build upon the relevant and foundational 56G and 112G CEI roadmap the OIF has established,” said Nathan Tracy of TE Connectivity and OIF vice president of marketing. “The industry continues to look to the OIF to deliver interoperable implementation agreements that will drive adoption of both 100 Gb/s serial applications and the interfaces needed to address higher bandwidth.”
Network Operator Working Group
Members voted to evolve the Carrier Working Group into the new Network Operator Working Group, reflecting the active participation of web-scale and content service provider members such as Alibaba, Google and Microsoft, along with traditional service providers such as China Telecom, Orange, TELUS, and Verizon.
“The new working group reflects the OIF’s growing membership of network operators who are participating in technology advancement and interoperability demonstrations to influence the industry,” said Dr. Junjie Li of China Telecom, the newly elected Network Operator Working Group chair. “These network operators have driven the OIF 400ZR and CFP2-DCO projects and are sharing their insights as reflected in the presentation from our Q4 speaker, Dr. Xie of Alibaba.”
OIF Election Results
Cathy Liu of Broadcom Limited and Dr. Martin Bouda of Fujitsu were newly elected to the Board for one-year terms, with Dr. Bouda appointed to secretary/treasurer. Ian Betty of Ciena was re-elected for a two-year term, and Tad Hofmeister of Google was elected to a two-year term.
Jonathan Sadler of Coriant was appointed to vice president. Dave Brown of Nokia continues to serve as president, and Nathan Tracy of TE Connectivity continues to serve as vice president of marketing.
About the OIF
The OIF facilitates the development and deployment of interoperable networking solutions and services. Members collaborate to drive Implementation Agreements (IAs) and interoperability demonstrations to accelerate and maximize market adoption of advanced internetworking technologies. OIF work applies to optical and electrical interconnects, optical component and network processing technologies, and to network control and operations including software defined networks and network function virtualization. The OIF actively supports and extends the work of national and international standards bodies. Launched in 1998, the OIF is the only industry group uniting representatives from across the spectrum of networking, including many of the world’s leading service providers, system vendors, component manufacturers, software and testing vendors. Information on the OIF can be found at http://www.oiforum.com.
Roy Rubenstein, Gazzetabyte
June 23, 2017
The Optical Internetworking Forum’s (OIF) group tasked with developing two styles of 400-gigabit coherent interface is now concentrating its efforts on one of the two.
When first announced last November, the 400ZR project planned to define a dense wavelength-division multiplexing (DWDM) 400-gigabit interface and a single wavelength one. Now the work is concentrating on the DWDM interface, with the single-channel interface deemed secondary.
“It [the single channel] appears to be a very small percentage of what the fielded units would be,” says Karl Gass of Qorvo and the OIF Physical and Link Layer working group vice chair, optical, the group responsible for the 400ZR work.
The likelihood is that the resulting optical module will serve both applications. “Realistically, probably both [interfaces] will use a tunable laser because the goal is to have the same hardware,” says Gass.
The resulting module may also only have a reach of 80km, shorter than the original goal of up to 120km, due to the challenging optical link budget.
Origins and status
The 400ZR project began after Microsoft and other large-scale data centre players such as Google and Facebook approached the OIF to develop an interoperable 400-gigabit coherent interface they could then buy from multiple optical module makers.
The internet content providers’ interest in an 80km-plus link is to connect premises across the metro. “Eighty kilometres is the magic number from a latency standpoint so that multiple buildings can look like a single mega data centre,” says Nathan Tracy of TE Connectivity and the OIF’s vice president of marketing.
Since then, traditional service providers have shown an interest in 400ZR for their metro needs. The telcos’ requirements are different to the data centre players, causing the group to tweak the channel requirements. This is the current focus of the work, with the OIF collaborating with the ITU.
“The catch is how much can we strip everything down and still meet a large percentage of the use cases”
“The ITU does a lot of work on channels and they have a channel measurement methodology,” says Gass. “They are working with us as we try to do some division of labour.”
The group will choose a forward error correction (FEC) scheme once there is common agreement on the channel. “Imagine all those [coherent] DSP makers in the same room, each one recommending a different FEC,” says Gass. “We are all trying to figure out how to compare the FEC schemes on a level playing field.”
Meeting the link budget is challenging, says Gass, which is why the link might end up being 80km only. “The catch is how much can we strip everything down and still meet a large percentage of the use cases.”
400ZR form factors
Once the FEC is chosen, the power envelope will be fine-tuned and then the discussion will move to form factors. The OIF says it is still too early to discuss whether the project will select a particular form factor. Potential candidates include the OSFP MSA and the CFP8.
“The cloud is the biggest voice in the universe”
The industry assumption is that the 80km-plus 400ZR digital coherent optics module will consume around 15W, requiring a very low-power coherent DSP that will be made using 7nm CMOS.
“There is strong support across the industry for this project, evidenced by the fact that project calls are happening more frequently to make the progress happen,” says Tracy.
Why the urgency?
“The cloud is the biggest voice in the universe,” says Tracy. To support the move of data and applications to the cloud, the infrastructure has to evolve, leading to the data centre players linking smaller locations spread across the metro.
“At the same time, the next-gen speed that is going to be used in these data centres – and therefore outside the data centres – is 400 gigabit,” says Tracy.