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World’s First Successful Demonstration of Multi-Vendor Equipment Interoperability in Transmitting 100 Gigabit Ethernet Signals over an Optical Network


Step toward 100 gigabit-class communications over multiple optical networks


Tokyo and Atsugi, Japan, December 13, 2011 – Fujitsu Limited (*1), NEC Corporation (*2), and Anritsu Corporation (*3) today jointly announced that, in field tests, for the first time in the world they successfully demonstrated optical network interoperability interface technology allowing telecommunications carriers to connect to each other at 100 Gigabit-class speeds, some 2.5- to 10-times faster than current speeds. Accordingly, this is the first time in the world that the transmission of 100 Gbps Ethernet signals over multiple optical networks using equipment from multiple vendors has been successfully demonstrated.


Details of the test are being presented at the 25th Symposium on Optical Communication Systems (*4), running December 15–16, 2011, in Mishima, Shizuoka Prefecture in Japan.



With the proliferation of broadband lines and smartphones, to keep pace with the ever-increasing speed of Internet connections and the expanding use of capacity-intensive data for such applications as sending and receiving videos, telecommunications carriers need to increase the speed and capacity of their networks. This led various international standards bodies to promulgate a series of international standards in 2010 relating to communication technologies for Ethernet and optical networks operating at 100 Gigabit-class speeds, 2.5- to 10-times current speed levels. In order to use these technologies to bring about the creation of a 100 Gigabit-class optical network linking different telecommunications carriers, there was a need to demonstrate the interoperability of equipment from different vendors.


Demonstration Overview and Results

Fujitsu, NEC, and Anritsu participated in the effort to develop an interface that complied with Optical Transport Network (OTN, *5) technology for transmitting 100-Gbps Ethernet signals over an optical network, standardized by the ITU-T (*6) in 2010. Fujitsu and NEC performed an assessment of interoperability and a basic performance assessment of an OTN interface that accommodates 100-Gbps Ethernet, on prototype equipment from multiple vendors, using instrumentation provided by Anritsu. These tests were the world’s first to successfully demonstrate the interoperability of equipment using this interface, and they confirmed that 100-Gbps Ethernet signals were transmitted with 100% transmission efficiency. This interface technology will enable the optical networks of different telecommunications carriers to be interoperable at 100 Gigabit-class speeds, 2.5- to 10-times as fast as current speed levels.


These tests were carried out as part of the “Ethernet over OTN Technology R&D Project,” one of the joint research topics for collaboration among industry, academia, and government being pursued by the Interoperability Working Group (chaired by Naoki Yamanaka of Keio University, *7) of the Kei-hanna Info-Communication Open Laboratory. This is the first time that multiple vendors have demonstrated such results using an open and neutral R&D environment as provided by the Open Laboratory.


Glossary and Notes

1. Fujitsu Limited

Equipped its FLASHWAVE 9500 DWDM transmission system with the OTN interface technology demonstrated in these interoperability tests.


2. NEC Corporation

Equipped its SpectralWave DW7000 Series non-blocking optical transport and cross-connect system with the OTN interface technology demonstrated in these interoperability tests.


3. Anritsu Corporation

Provided its MD1260A 100G Analyzer as instrumentation for the 100-Gbps Ethernet interface used in these interoperability tests.


4. Symposium on Optical Communication Systems

Also called the OCS Symposium, this is Japan’s biggest conference on optical communications, sponsored by the Optical Communication Systems technical committee (chaired by Hiroshi Onaka of Fujitsu) of the Institute of Electronics, Information, and Communications Engineers (IEICE). For more information:


5. Optical Transport Network

A high-capacity wave-division multiplexing transport network recommended by the ITU-T for connecting two locations and carrying Ethernet signals or other user-level signals as light wavelength signals.


6. ITU-T

Abbreviation for the International Telecommunication Union-Telecommunication Sector. The group in the ITU responsible for setting electrical-communication standards, this international body sets broad standards relating to telephony and digital communications.


7. Interoperability Working Group

The Interoperability Working Group of the New Generation Network Subcommittee of the Research Promotion Council of Kei-hanna Info-Communication Open Laboratory.


Press Contacts

Fujitsu Limited
Public and Investor Relations Division



NEC Corporation 

Akiko Shikimori         



Anritsu Corporation

Corporate Communication Department



About Fujitsu
Fujitsu is a leading provider of information and communication technology (ICT)-based business solutions for the global marketplace. With approximately 170,000 employees supporting customers in over 100 countries, Fujitsu combines a worldwide corps of systems and services experts with highly reliable computing and communications products and advanced microelectronics to deliver added value to customers. Headquartered in Tokyo, Fujitsu Limited (TSE:6702) reported consolidated revenues of 4.5 trillion yen (US$55 billion) for the fiscal year ended March 31, 2011. For more information, please see:


About NEC Corporation

NEC Corporation is a leader in the integration of IT and network technologies that benefit businesses and people around the world. By providing a combination of products and solutions that cross utilize the company's experience and global resources, NEC's advanced technologies meet the complex and ever-changing needs of its customers. NEC brings more than 100 years of expertise in technological innovation to empower people, businesses and society. For more information, visit NEC at


About Anritsu

Anritsu business expansion has occurred chiefly in the information and communication field. The company's flagship measuring instrument business provides products and services indispensable to the development, manufacture and maintenance of a range of communication systems as typified in mobile phones and the Internet on a global scale. In addition, Anritsu technologies have incorporated into a range of products in other fields, such as IP network equipment, inspection equipment for food and pharmaceutical products, and precision measuring instruments for electronic component. For more information, please see:


All other company or product names mentioned herein are trademarks or registered trademarks of their respective owners. Information provided in this press release is accurate at time of publication and is subject to change without advance notice.