在近日于美國(guó)舊金山舉行的光纖通訊大會(huì)(OFC Conference)上，包括英特爾(Intel)、Mellanox與Vello Systems等廠商都參與了光學(xué)網(wǎng)絡(luò)新標(biāo)準(zhǔn)的訂定，其目標(biāo)是讓透過因特網(wǎng)數(shù)據(jù)中心以及營(yíng)運(yùn)商網(wǎng)絡(luò)各節(jié)點(diǎn)的巨量數(shù)據(jù)流能順暢傳遞。 英特爾最近發(fā)表了 MXC 光學(xué)連接器接口，表示未來支持該接口的產(chǎn)品將由康寧(Corning)、US Conec、TE Connectivity與 Molex等公司供應(yīng)；MXC接口的數(shù)據(jù)傳輸速率可達(dá)1.6 Tbit/s，采用64個(gè)速率各為25 Gbit/s的光纖信道，傳輸距離可達(dá)300公尺。 在英特爾方面，該公司打算在數(shù)據(jù)中心機(jī)架與交換器內(nèi)的硅光子(silicon photonics)產(chǎn)品采用MXC接口；康寧則已經(jīng)推出 MXC 纜線組件的樣品，預(yù)計(jì)今年秋天開始量產(chǎn)；TE Connectivity 與Molex也將生產(chǎn)銷售MXC零組件。 而US Conec則是MXC技術(shù)的關(guān)鍵供貨商，該公司將銷售MXC組件給康寧等其他公司，并提供該接口技術(shù)的認(rèn)證服務(wù)。有一位微軟(Microsfot)數(shù)據(jù)中心的主管已經(jīng)表示將支持 MXC。 英特爾在去年9月展示了MXC纜線以及其硅光子組件在提升帶寬、降低數(shù)據(jù)中心成本等方面的優(yōu)勢(shì)；該公司硅光子技術(shù)領(lǐng)導(dǎo)研究員Mario Paniccia表示，MXC是：“光通訊的核心功能區(qū)塊，將協(xié)助定義未來的數(shù)據(jù)中心架構(gòu)?！? 此 外新創(chuàng)公司Ranovus以及網(wǎng)絡(luò)布建方案供貨商Mellanox，針對(duì)傳輸距離達(dá)2公里的100 Gbit/s分波多任務(wù)(wavelength-division multiplexing，WDM)互連發(fā)表多來源協(xié)議(multi-source agreement，MSA)，該OpenOptics MSA能采用QSFP-28封裝的1,550nm波長(zhǎng)光學(xué)組件、WDM雷射或是硅光子組件。 OpenOptics MSA透過一對(duì)單模光纖支持4個(gè)25 Gbit/s WDM連結(jié)，可升級(jí)到400 Gbit/s以上；據(jù)Ranovus的營(yíng)銷/業(yè)務(wù)長(zhǎng)Saeid Aramideh在一份新聞稿中指出，該互連技術(shù)與舊有的多模光纖布建方案比較，能將數(shù)據(jù)中心的光纖成本降低四至七倍。 另一 家Vello Systems則是透過成立產(chǎn)業(yè)組織Open Source Optical (OSO) Forum，期望能為光學(xué)網(wǎng)絡(luò)技術(shù)提升貢獻(xiàn)心力；該組織支持OpenFlow 1.4軟件定義網(wǎng)絡(luò)標(biāo)準(zhǔn)的開放源碼軟件，目前成員包括Accelink、Coadna、CrossFiber、O-Net、PacketLight與 Pacnet。 該組織的部分成員一開始將把OSO軟件移植到現(xiàn)有的光學(xué)通訊系統(tǒng)中，以兼容于OpenFlow標(biāo)準(zhǔn)的控制器與 應(yīng)用程序；其他成員則可能會(huì)以O(shè)penFlow標(biāo)準(zhǔn)打造下一代的光學(xué)網(wǎng)絡(luò)系統(tǒng)。對(duì)此負(fù)責(zé)訂定OpenFlow標(biāo)準(zhǔn)的開放網(wǎng)絡(luò)基金會(huì)(Open Networking Foundation)執(zhí)行總監(jiān)Dan Pitt表示：“我們期待能與OSO社群進(jìn)行合作，了解其需求并提供解決方案?！? 市場(chǎng)研究機(jī)構(gòu)Ovum的分析師Ron Kline表示，在開放源碼領(lǐng)域的各種活動(dòng)有可能會(huì)大幅改變數(shù)據(jù)中心互連領(lǐng)域的生態(tài)，催生各種網(wǎng)絡(luò)營(yíng)運(yùn)商所需求的低成本、白牌光學(xué)互連解決方案。 在 今年OFC期間發(fā)表的其他研發(fā)成果，包括Finisar 展示其CFP4 規(guī)格互連方案；CFP4采用4個(gè)25 Gbit/s鏈接信道為光學(xué)通訊系統(tǒng)提供100 Gbit/s鏈接，在OFC發(fā)表了一篇白皮書介紹CPF4的Finisar技術(shù)專家Chris Cole表示，今年的光纖通訊大會(huì)標(biāo)志著該規(guī)格的隆重登場(chǎng)。 本文授權(quán)編譯自EE Times，版權(quán)所有，謝絕轉(zhuǎn)載 編譯：Judith Cheng 參考英文原文：Intel, Mellanox, Vello Ride Optics，by Rick Merritt

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{pagination} Intel, Mellanox, Vello Ride Optics Rick Merritt SAN JOSE, Calif. — Intel, Mellanox, and Vello Systems are among the latest companies announcing new standards efforts for optical networking at the OFC Conference this week. They aim to smooth the flow of a rising tide of data at various points through Internet datacenters and carrier networks. Intel announced MXC optical connector products will be available from companies including Corning, US Conec, TE Connectivity, and Molex. MXC can transmit data at 1.6 Tbit/s using 64 fibers at 25 Gbit/s at distances up to 300 meters. For its part, Intel plans to use MXC for silicon photonics products inside datacenter racks and switches. Corning is sampling MXC cable assemblies that will be in production in the fall. TE Connectivity and Molex also will build and sell MXC assemblies. US Conec, the key MXC technology provider, will sell MXC parts to Corning and others and provide a certification program for the link. A Microsoft datacenter manager expressed support for MXC. In September, Intel demonstrated MXC cables and its silicon photonics boosting bandwidth and lowering cost in a rack of computers. Mario Paniccia, Intel's leading researcher on silicon photonics, called MXC "a core building block for optical (or photonic) communications [that] will help define the way datacenters are built in the future." Separately, startup Ranovus Inc. and networking specialist Mellanox Technologies launched a multi-source agreement (MSA) for a 100 Gbit/s wavelength-division multiplexing interconnect supporting distances up to two kilometers. The OpenOptics MSA can use 1550 nm wavelength optics, WDM lasers, and silicon photonics in a QSFP-28 package. The link supports 4 x 25 Gbit/s WDM links over a single pair of singlemode fibers and can scale to 400 Gbit/s and beyond. The interconnect can reducing the fiber costs in a datacenter "by four to seven times compared to legacy multimode fiber implementations," said Saeid Aramideh, chief marketing and sales officer for Ranovus, in a press statement. Taking a different approach to enhancing optical networks, Vello Systems announced the Open Source Optical Forum. The group supports open-source software for the OpenFlow 1.4 standard of software-defined networking. Current members of the group include Accelink, Coadna, CrossFiber, O-Net, PacketLight, and Pacnet. Initially, some members will port OSO software to their existing optical systems, making them compatible with OpenFlow controllers and applications. Other members may build next-generation optical systems based on OpenFlow. "We look forward to collaborating with the OSO community to understand their requirements and contribute solutions," said Dan Pitt, executive director of the Open Networking Foundation, which defines OpenFlow. The open-source effort "has the potential to radically change the datacenter interconnect market enabling low-cost, white box approaches to optical connectivity that operators ultimately crave," said Ron Kline, a principal analyst at market watcher Ovum, speaking in a press statement. Among other standards efforts at OFC, Finisar demonstrated components for the CFP4 interconnect. CFP4 uses 4 x 25 Gbit/s links to support 100 Gbit/s connections on optical systems. OFC marks "a big introduction for the form factor," said Finisar technologist Chris Cole, who wrote a whitepaper describing the link.