Fujitsu, Intel, Lucent Target 10Gbit/s Ethernet over DWDM Public Network

1/27/2006 - Fujitsu Microelectronics Europe (FME) and Intel, two leading vendors of silicon to the high-speed communications industry, and Lucent Technologies, a leading supplier of telecommunication systems, today announce that they have joined forces to bring a technology to market that will broaden the range of 10Gbit/s Ethernet applications carried over DWDM transport networks.

They have worked together with AimCom, an ASIC design house, to define a device that supports transparent mapping of a 10Gbit/s Ethernet LAN-PHY client (10GBASE-R) into an OTU2 optical channel, as defined in the ITU-T Recommendation G.709. The value of this approach is that it combines today's different mapping schemes with further extensions that are compliant with both the IEEE standard (802.3ae-2002) and the ITU-T (G.709). Customers benefit from this initiative, as it provides a path to a future-proof and cost-efficient mapping solution for 10 GE LAN client signals.

"This new technology enables our customers to provide unified solutions for the broadband backbone", says Bill Chatwell, General Manager of Intel's Optical Networking-Components Division, "and will ensure Intel's industry-leading position in this market segment. We look forward to working with FME and are extremely pleased with Lucentīs involvement. Furthermore, we appreciate AimCom's valuable contribution in making this happen."

The move has been welcomed by leading European telecom operators and equipment manufacturers. Matthias Berger, who oversees hardware circuit design at Lucent Technologies in Nuremberg, said, "We are very interested in evaluating this technology for potential use in our next generation optical transport equipment."

Dirk Weinsziehr, FME's Senior Director of Marketing said, "We welcome this opportunity to work together with such strong players as Intel, Lucent Technologies and AimCom and to bring to market a solution that has already been positively received by numerous key providers."

Technical background
The OTN payload rates were defined to match the Synchronous Digital Hierarchy (SDH) signals STM-16 to STM-256, while satisfying the constraints of transoceanic optical line systems with 10G wavelengths, and the 10Gbit/s WAN-PHY (10BASE-W) over the OTN defined by the IEEE in co-operation with the ITU-T. The market, however, took a slightly different turn. Market realities (e.g., volume-driven per-port costs) favoured the 10GE LAN PHY signal, designated as 10GBASE-R. Specified by IEEE 802.3* for LAN applications, 10GBASE-R traffic has rapidly increased in popularity as a WAN transport client. The bit-rate of the 10Gbit/s LAN-PHY interface is slightly higher (10.31Gbit/s) than the capacity of the most obvious OTN carrier, the OTU2 (9.95Gbit/s). This is not a problem for applications complying with the existing specification of IPG and preamble in IEEE Std. 802.3, as these may be regenerated after traversing the optical network. However, a number of vendors have used the preamble and interframe space for proprietary applications and such information is lost using the standard method described above. With the growth in DWDM/OTN networks, and 10Gbit/s Ethernet likely to become their most important payload, the challenge is to perform a rate adaptation that allows OTN compliance for such applications without losing any of the proprietary information contained in the preamble from the Ethernet layer. Various solutions that overcome this obstacle are already deployed. A common drawback is that they either violate the OTN standard or use the Ethernet protocol in a proprietary way. Both alternatives pose interoperability issues between different equipment vendors and prohibit electrical cross-connecting and multiplexing, e.g. towards 40Gbit/s OTU3. And this has been a major impediment to its adoption by major telecom companies to date.

The new device embraced by FME, Intel, Lucent Technologies and AimCom retains the ability to preserve information transparency while retaining the benefits of a standard compliant OTN signal in terms of frame structure and line speed, thus opening a path to a future-proof and cost-efficient mapping solution for 10 GE LAN client signals.

It is expected that the availability of this cost-efficient offering will quickly gain a strong following throughout the telecoms industry, consolidating the trend to move towards 10Gbit/s Ethernet transport over DWDM/OTN networking solutions that are not limited to a short-term horizon.

Further information about this subject can be obtained from a white paper published by Intel.

About Fujitsu Microelectronics Europe
Fujitsu Microelectronics Europe (FME) is a major supplier of semiconductor and plasma display products. The company provides advanced systems solutions to the automotive, digital TV, mobile telephony, networking and industrial markets. Engineers from design centres dedicated to microcontrollers, mixed-signal, wireless, FRAM, multimedia ICs and ASIC products work closely with FME's marketing and sales teams throughout Europe to help satisfy customers' system development requirements. This solutions approach is supported by a broad range of advanced semiconductor devices, IP and building blocks as well as leading-edge plasma display panels.

About Lucent Technologies
Lucent Technologies, headquartered in Murray Hill, N.J., USA, designs and delivers networks for the world's largest communications service providers. Backed by Bell Labs research and development, Lucent relies on its strengths in mobility, optical, data and voice networking technologies as well as software and services to develop next-generation networks. The company's systems, services and software are designed to help customers quickly deploy and better manage their networks and create new, revenue-generating services that help businesses and consumers.

About Intel
Intel, the world leader in silicon innovation, develops technologies, products and initiatives to continually advance how people work and live.

About AimCom
AimCom BV is a privately held fabless semiconductor company providing building blocks for Next Generation Optical Networking solutions for delivery of cost-effective SDH and Ethernet services. The company's products, designed for metro and regional service providers, are full-featured, carrier-class solutions, incorporating advanced optical transport and Ethernet over SDH/Sonet.

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