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Higher-speed wavelength demand to drive optical transport sales toward $80 billion: Dell’Oro

Higher-speed wavelength demand to drive optical transport sales toward $80 billion: Dell’Oro January 24, 2019 Author Stephen Hardy Editorial Director and Associate Publisher Shipments of ports capable of transmitting 200 Gbps or greater will climb rapidly over the next five years, The Dell'Oro Group predicts. (Source: The Dell'Oro Group) Dell’Oro Group predicts that the demand for wavelength transmission rates greater than 100 Gbps will drive optical transport equipment sales to near $80 billion over the next five years. That’s an increase of 16%, the market research firm notes in its latest “Optical Transport 5-Year Forecast Report.” “The market demand for 100 Gbps will continue to be large, but all future optical transport market growth will be driven by sales of higher wavelength speeds,” said Jimmy Yu, vice president at Dell’Oro Group. “We believe service providers are still motivated to chase better spectral efficiencies to economically increase network capacity while maintaining their capital spend. Hence, the desire to migrate to higher wavelength speeds such as 200 Gbps and 400 Gbps. “Fortunately, component and system manufacturers are striving to deliver better coherent solutions with each new product generation. As a result, optical routes that once were only serviced by 100-Gbps wavelengths are now serviceable by 200-Gbps wavelengths and 400 Gbps in the future,” Yu concluded. Revenues from gear that will support coherent transmission at 200 Gbps or greater will enjoy a 30% compound annual growth rate (CAGR) during the forecast period, according to the report. Disaggregated WDM systems also will become more popular during this time frame, Dell’Oro adds. Dell’Oro’s “Optical Transport 5-Year Forecast Report” provides an overview of the optical transport industry space via tables covering manufacturers’ revenue, average selling prices, unit shipments, and tributary/line or wavelength shipments (by speed up to 600 Gbps). The report also tracks DWDM long-haul terrestrial and WDM metro applications, multiservice multiplexers, and optical switch equipment.

发布日期 : 2019/01/25 | 发布者 : administrator | 浏览数 : 475

The rise of 400G in the data center

The rise of 400G in the data center July 3, 2018 By Niall Robinson, ADVA Optical Networking The transition to 400 Gbps is rapidly changing how data centers and data center interconnect (DCI) networks are designed and built. But how will the landscape look when the battles between competing technologies in each area have been settled? The move to 400-Gbps transceivers in the data center can be viewed as a game of two halves and it’s going to be interesting to see how things pan out in each: the client and the networking side. Right now, two competing multi-source agreements (MSAs) are battling it out in the plug space, both vying to be the form factor of the 400-Gbps era. It’s all about quad small form factor pluggable double density (QSFP-DD) optical transceivers vs. octal small form factor pluggable (OSFP) optical transceivers (see Figure 1). Figure 1. Two transceiver form factors, the QSFP-DD (left) and OSFP (right), are being touted for support of 400-Gbps transmission.Each has advantages – and drawbacks. Let the battle begin Of the two sides – client and networking – it’s a little easier to predict how things will go from the client point of view. That’s because even the most high-performance client interface can fit into either of the two physical form factors. For that reason, QSFP-DD looks to be moving into the lead with various reach options coming to market. The table below compares some of the key parameters between the two form factors, with many client reach options demonstrated live in San Diego at the recent Optical Fiber Communications (OFC) conference: Driving the network side is the emergence of the Optical Internetworking Forum’s 400ZR DWDM coherent interface specification and the trend towards combining transmission and switching in one box. As always, the choice of form factor comes down to mechanics and power. The OSFP is a bigger module, providing lots of useful physical space for DWDM components. It also features heat dissipation capabilities through its own thermal management system, enabling up to 15 W of power. When you’re putting coherent capabilities into a very small form factor, power is key and so, in some respects, OSFP does have a significant advantage. Its Achilles’ heel, though, is that it’s a much longer device, thus consuming more board space; its power benefits aren’t especially necessary on the client side, either. Also, for all OSFP’s space, power, and enhanced signal integrity performance, it doesn’t offer direct backwards compatibility to QSFP28 plugs. As a technology, it’s a blank slate with no 100-Gbps version, and so it can’t provide an easy transition from legacy modules. This is another reason why it hasn’t been universally accepted on the client side. The QSFP-DD, on the other hand, does have direct backwards compatibility with QSFP28 and QSFP plugs and that’s the key to the enduring popularity of this form factor. It means operators are able to take a QSFP-DD port and install a QSFP28 plug. The value of this convenience can’t be underestimated. After all, it was this handy interoperability with legacy technology that helped the QSFP28 win out in the 100-Gbps race as it made it possible to slot a 40-Gbps QSFP+ plug straight in. There’s a lot of support for QSFP-DD with its small form factor. The downside, of course, is its lower power dissipation. It typically allows up to 12 W, making it much tougher to handle a coherent ASIC and keep it sufficiently cool. If QSFP-DD can be made to work, and there are many suppliers working on such products today, it looks like it would have the momentum to kill off OSFP, but we’re certainly not there yet. Applications for 400 Gbps In the switching architecture on the client side, there’s an enormous ecosystem push towards 400 Gbps. A significant element here is white box switching, which has become a viable option for more operators due to the rise of software-defined networking (SDN) and production network offerings driven by the Open Compute Project (OCP). Many companies are now contributing to the OCP. However, Edgecore Networks was the first to contribute the design of a 400 Gigabit Ethernet data center switch. Edgecore’s latest 1RU form factor switch provides 32 QSFP-DD ports, each capable of 400-Gbps operation. The move highlights the belief among the OCP community that 400-Gbps Ethernet switching will become crucial in the next couple of years. So how about 400 Gbps in DCI transport? Well, there are multiple approaches to introducing the new speed on this side, but the key issue is transmission distance. While 400ZR plugs are fine for campus and metro distances, they start to run out of capability over longer reaches. Stretched across 100 km, they can easily deliver all 400 Gbps of capacity. But when links get to a few hundred kilometers, the plug itself would have to operate at a lower data rate, turning the switch port into a 200-Gbps port or even 100 Gbps for long-haul. This is where emerging DCI technologies that are specifically developed for hyperscale applications come into play. There are several different approaches coming to market now, all aimed at maximizing throughput. These include harnessing probabilistic constellation shaping, for example, as well as 64QAM technology, which the likes of Nokia and Acacia are using to push the boundaries of spectral efficiency. These advanced technologies require highly sophisticated ASICs, which consume much more power and hence dissipate more heat than can be tolerated in a QSFP-DD or OSFP plug. To deliver these advanced transmission capabilities there are terminal platforms under development that will enable 400 Gbps in DCI networks by offering even higher capacities and speeds. Systems capable of transporting 600 Gbps of data over a single wavelength and delivering a total duplex capacity of 3.6 Tbps of transmission capacity in 1RU have appeared at industry events such as OFC (see Figure 2). The advantage of this kind of platform is that it delivers more capacity at every distance, including the shorter campus and metro ranges where it provides 600 Gbps per wavelength – albeit with some added initial cost due to extra shelf space. The real benefit, though, comes when used with regional or long-haul links, where this type of terminal stays at a higher data rate for longer distances. Figure 2. A new generation of DCI platforms capable of 600-Gbps transmission should advance the use of 400 Gbps in a wider range of applications. The emergence of 400 Gbps is reshaping the data center and DCI optical landscape. The first half of this game is being played out right now on the client side. Perhaps QSFP-DD is in the lead but the second half of the game, on the line side, could well tilt the playing field in favor of OSFP. Early discussions on what’s feasible for the next Ethernet rate, after 400G, have already begun. So it’s likely that two or three years from now many vendors will be discussing the next generation of pluggable form factors for both client and line side products, evolving the data center and DCI market once again. Niall Robinson is vice president, global business development at ADVA Optical Networking. He has more than 26 years in the telecommunications industry. A recognized expert on data center interconnect technology and frequently requested speaker at conferences all over the world, Niall’s specialty is moving cutting-edge technology from the lab into the network.

发布日期 : 2019/01/23 | 发布者 : administrator | 浏览数 : 502

Next-generation PON sales to grow at a 40% CAGR to 2022: Dell’Oro

Author Lightwave Staff Dell’Oro Group predicts that sales of next-generation PON gear will increase at a compounded annual growth rate (CAGR) of nearly 40% from 2017 to 2022. The growth will drive overall PON sales worldwide to more than $7 billion by 2022, the market research firm says in its newly released “Broadband Access 5-Year Forecast Report.” “Where PON technologies are used for residential broadband services, 2.5-Gbps GPON will remain as the dominant technology due to its lower price and sufficient speeds,” explains Alam Tamboli, senior analyst at Dell’Oro Group. “However, for a number of growing use cases such as business services and mobile backhaul, next-generation PON technologies have capacities and capabilities that current generation technologies lack.” Such next-gen platforms include 10G-EPON, XGS-PON, and NG-PON2. “10-Gbps EPON has already begun shipping strongly in China, where current generation PON is widely deployed,” Tamboli continued. “Shipments of XGS-PON and NG-PON2 remain small for now, but we anticipate that XGS-PON will grow more rapidly. XGS-PON and its 10-Gbps symmetric bandwidth should meet operators’ needs for business services and mobile backhaul.” The Dell’Oro Group “Broadband Access 5-Year Forecast Report” provides an overview of the broadband access market with tables covering manufacturers’ revenue, average selling prices, and port/unit shipments for Cable, DSL, and PON equipment. Network infrastructure equipment includes cable modem termination systems (CMTS); digital subscriber line access multiplexers (DSLAMs) by technology, including ADSL, ADSL2+, G.SHDSL, VDSL, and Gfast; and PON optical line terminals (OLTs). Customer premises equipment (CPE) technology covered in the report reflects voice-over-IP (VoIP) or data-only. For related articles, visit the Business Topic Center.

发布日期 : 2018/07/31 | 发布者 : administrator | 浏览数 : 832

ZTE back in business as Commerce technology ban suspended

Author Stephen Hardy [Editorial Director and Associate Publisher] The U.S. Department of Commerce today announced it has suspended the ban it imposed on ZTE that denied the Chinese company access to U.S. technology. ZTE deposited $400 million in escrow in a U.S. bank, fulfilling the last of its financial obligations under the agreement reached June 7through which ZTE would regain access to the technology essential to the construction and maintenance of many of its products. The company effectively shut down shortly after the ban was imposed April 16. The company will restart business with a new leadership team, as replacement of the company’s board of directors and dismissal of everyone with a title of senior vice president or above was another obligation under the new agreement. ZTE management now faces the challenge of restarting operations and digging out of the financial hole the ban and subsequent shutdown created. ZTE revealed today that it expects to report a loss of RMB 7 billion to RMB 9 billion ($1.05 billion to $1.34 billion) for the first six months of this year. The company earned a profit of approximately RMB 2.29 billion ($340 million) during the same period last year. The Commerce Department and its Bureau of Industry and Security imposed the ban after it was determined that ZTE hadn’t complied with a disciplinary agreement reached last year, then lying about it (see "U.S. Commerce Dept. finds ZTE violated export disciplinary agreement, bans U.S. component supply"). The first disciplinary agreement was reached in March 2017 when the Chinese company admitted it had exported telecom gear containing U.S. technology to Iran and North Korea, two companies to which export of such U.S. technology was forbidden (see "ZTE admits guilt, settles export squabble"). That first agreement included provisions for a seven-year ban on access to U.S. technology, which the Commerce Department triggered this past April. The new agreement includes a 10-year ban, which now stands suspended. Between the $892 million penalty paid as part of last year’s disciplinary action and the $1.4 billion it just paid (including the escrowed money, which will return to ZTE at the end of the current agreement’s 10-year duration if the company complies with all terms), ZTE’s export trouble has cost it nearly $2.3 billion in fines. “While we lifted the ban on ZTE, the Department will remain vigilant as we closely monitor ZTE’s actions to ensure compliance with all U.S. laws and regulations,” said Commerce Secretary Wilbur Ross. “Three interlocking elements – a suspended denial order, the $400 million in escrow, and a compliance team selected by and answerable to the Department – will allow the Department to protect U.S. national security.” Meanwhile, a cloud remains on ZTE’s horizon. Senators opposed to the ZTE deal succeeded in attaching language to a defense authorization bill that would re-impose the technology access ban. The language must survive reconciliation between the Senate and the House of their different versions of the bill (the House version does not address the ban) before President Donald Trump would have to decide whether to veto the bill or escalate tensions with China by signing it and putting the ban back in place. For related articles, visit the Business Topic Center. For more information on high-speed transmission systems and suppliers, visit the Lightwave Buyer’s Guide.

发布日期 : 2018/07/31 | 发布者 : administrator | 浏览数 : 900

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