Jump to content

Ciena

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by InternetArchiveBot (talk | contribs) at 13:38, 9 December 2023 (Rescuing 5 sources and tagging 1 as dead.) #IABot (v2.0.9.5). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Ciena Corporation
Company typePublic
IndustryNetworking systems & software
Founded1992; 32 years ago (1992)
Headquarters
Hanover, Maryland
,
United States
Key people
ProductsNetworking systems and products
RevenueIncrease US$3.63 billion (2022)
Decrease US$223 million (2022)
Decrease US$153 million (2022)
Total assetsIncrease US$5.07 billion (2022)
Total equityDecrease US$2.71 billion (2022)
Number of employees
8,079 (2022)
Websiteciena.com
Footnotes / references
[1][2][3]

Ciena Corporation is an American networking systems and software company[4][5][6] based in Hanover, Maryland.[7][8] The company has been described by The Baltimore Sun as the "world's biggest player in optical connectivity".[9] The company reported revenues of $3.63 billion for 2022.[1] Ciena had over 8,000 employees, as of October 2022.[1] Gary Smith serves as president and chief executive officer (CEO).[3]

Customers include AT&T, Deutsche Telekom,[6] KT Corporation[10] and Verizon Communications.[5][11]

History

Early history and initial public offering

Ciena was founded in 1992 under the name HydraLite by electrical engineer David R. Huber.[12][13] Huber served as chief executive officer, while Optelecom, a company building optical networking products, provided "management assistance and production facilities,"[13] and co-founder Kevin Kimberlin "provided initial equity capital during the formation of the Company".[14] Dave Huber engaged William K. Woodruff & Co. to raise $3.0 million in venture funding in September of 1993. Woodruff presented the idea to John Bayless at Sevin Rosen in November 1993 that resulted in Sevin Rosen investing $3.0 million April 10, 1994. William K. Woodruff & Co. was a co-manager of Ciena's IPO in February 1997. [14]The company subsequently received funding from Sevin Rosen Funds as a result of a demonstration at its laboratory attended by Jon Bayless, a partner at the firm, who saw the value in applying HydraLite's fiber-optic technology to cable television. Sevin Rosen offered funding immediately, investing $1.25 million in April 1994.[15][16]

Ciena received $40 million in venture capital financing, including $3.3 million from Sevin Rosen Funds.[15] Other early investors in the company included Charles River Ventures, Japan Associated Finance Co., Star Venture, and Vanguard Venture Partners.[17] Bayless also recruited physicist Patrick Nettles, a former colleague at the telecommunications company Optilink, to serve as Ciena's first CEO, and Lawrence P. Huang, another former colleague, to accept the sales chief role. Huber and Nettles, who changed the company's name to Ciena,[18] began working from an office in Dallas in February 1994; Huber would remain with Ciena until 1995.[15][16]

The name of the company was changed to Ciena in 1994.[19] Its first products were introduced in May 1996, and Sprint Corporation was the company's first customer.[16] At $195 million, the company's first-year sales were the highest ever recorded by a startup at the time. Ciena had sold $54.8 million in products to Sprint alone by November 1996.[15] WorldCom also became an early customer. As of early 1997, Sprint and WorldCom accounted for 97 percent of Ciena's revenue. Ciena began diversifying its clientele and acquiring smaller contracts in 1997.[15]

Ciena went public on NASDAQ in February 1997, and was the largest initial public offering of a startup company to date, with a valuation of $3.4 billion.[16][17][20] The company's headquarters were relocated to Maryland in March 1997.[15] Ciena earned approximately $370 million in revenue and profits of $110 million for the fiscal year ending in October 1997.[16] Customers at the time included AT&T, Bell Atlantic, and Digital Teleport.[15]

In March 1998, Nettles and Michael Birck of Tellabs began discussing a possible merger. Tellabs announced the purchase of Ciena for $7.1 billion in June. Revenue surpassed $700 million by August 1998,[15] and Ciena had approximately 1,300 employees at the time.[17] The merger was not completed.[21][22][23] Financial performance and shareholder disapproval were cited in the media as reasons for the abandoned acquisition proposal in September 1998.[24][25]

Ciena 3903 in SVG format
Ciena 3903 in SVG format

2000s–present

Following the telecoms crash, Ciena's annual sales decreased from $1.6 billion to approximately $300 million.[26] To address the company's challenges, Smith replaced Nettles as the company's CEO in 2001, and Nettles became executive chairman; Ciena was the second largest fiber optic networking equipment producer in the U.S. at the time.[27][28] The company raised $1.52 billion by selling 11 million shares of stock and $600 million in convertible bonds in 2001.[26][29]

While many telecommunications companies experienced downturns during the early 2000s, Ciena's cash influx provided flexibility and allowed the company to expand its product portfolio to include a broader range of advanced networking solutions and other technologies.[26] Ciena also completed a series of strategic acquisitions, buying 11 companies between 1997 and early 2004.[30] Ciena spent more than $2 billion to purchase five networking technology companies during 2001–2004.[26]

AT&T, which previously tested select Ciena equipment, signed a supply agreement in 2001.[28] In 2002, Ciena reported $361.1 million in sales and a loss of $1.59 billion,[31] and had approximately 3,500 employees.[32] The company was the fourth largest producer of fiber optic equipment in the U.S. by 2003.[33][34]

In 2003, a federal court jury determined that Corvis Corporation, another fiber optic telecommunications equipment provider established by Huber in 1997, infringed a patent owned by Ciena.[31]

In 2008, Ciena earned $902 million and reported a profit of $39 million.[26] The company earned $653 million and reported a loss of $580 million in 2009; Ciena was generating approximately two-thirds of its revenue in the U.S. at the time.[26][35] Ciena had net losses until 2015, when the company earned $2.4 billion in sales and posted a $12 million profit.[26] Ciena's global workforce increased from 4,300 in 2011 to 5,345 by October 2015.[26] The company's research and development budget for its Ottawa facilities was approximately $180 million per year, as of 2015.[36]

Ciena earned $2.8 billion in revenue in 2017,[11] and reported annual sales of approximately $3.09 billion in 2018.[9] The company ranked number 770 and number 744 on the Fortune 1000 in 2017 and 2018, respectively.[37]

Acquisitions

Company acquired Year
AstraCom Inc. 1997
ATI Telecom International Ltd. 1998
Terabit Technology Inc. 1998
Lightera Networks Inc. 1999
Omnia Communications Inc. 1999
Cyras Corp. 2001
ONI Systems 2002
WaveSmith Networks Inc. 2003
Akara Corp. 2003
Catena Networks 2004
Internet Photonics 2004
World Wide Packets Inc. 2008
Nortel Metro Ethernet Networks 2010
Cyan 2015
TeraXion Inc. 2016
Packet Design 2016
DonRiver 2018
Centina Systems 2019

Ciena acquired the telecommunications company AstraCom Inc. in 1997 for $13.1 million. Fourteen of AstraCom's engineers signed four-year contracts with Ciena, and joined the company's new research and development team in Alpharetta, Georgia.[38] In early 1998, the company acquired Norcross, Georgia-based ATI Telecom International Ltd. and its subsidiary Alta Telecom in a transaction worth $52.5 million. Alta's engineering and installation products were used by service providers for switching, transport, and wireless communications; the company continued to operate as a subsidiary of Ciena.[39][40][41] Ciena purchased Terabit Technology Inc., a producer of detectors for data transmission based in Santa Barbara, California,[42] for $11.7 million in April 1998.[43] The company acquired Cupertino, California-based Lightera Networks Inc. and Marlborough, Massachusetts-based Omnia Communications Inc. for $980 million in stock in 1999.[44][45]

The company purchased Cyras Corp. of Fremont, California during 2000–2001 for $2 billion in stock.[46][47] ONI Systems, a San Jose, California-based producer of phone and computer data equipment, was acquired by Ciena for $900 million in stock in June 2002.[32][33][48] The acquisitions of Cyras, which produced optical switch systems, and ONI, which made transport equipment for data transfer, allowed Ciena to focus on networks in metropolitan areas.[49]

Ciena purchased WaveSmith Networks Inc., an optical-networking equipment manufacturer based in Acton, Massachusetts, for $158 million in stock in 2003.[50][51] Ciena acquired the Ottawa-based data storage networking company Akara Corp. for $45 million in 2003. Akara expanded Ciena's product line and storage networking capabilities, and continued to operate as a subsidiary.[49][52] Catena Networks and New Jersey-based Internet Photonics were purchased by Ciena in 2004.[49][53] The stock transactions were valued at $486.7 million and $150 million, respectively. Catena had approximately 220 employees at the time,[54] and the purchase of Internet Photonics marked Ciena's entrance into the cable industry.[55]

In 2008, Ciena acquired World Wide Packets Inc. (WWP), a Spokane Valley, Washington-based producer of switches and software for Ethernet services, for approximately $296 million. WWP offered the LightningEdge operating system and network management tools, and had more than 100 customers in 25 countries at the time. WWP became a whole owned subsidiary, and the company's office and 65 employees in Spokane, Washington were used by Ciena until mid 2018.[2][56]

Ciena acquired Nortel's optical technology and Carrier Ethernet division for approximately $770 million during 2009–2010.[11][57][58] Nortel's Metro Ethernet Networks business developed next-generation optical-transmission equipment and had more than 1,000 customers in 65 countries at the time.[59] The business had approximately 1,400 employees in Canada, including 1,125 in Ottawa and 250 in Montreal. In 2017, Ciena's 1,600 Ottawa personnel were relocated to a new campus in Kanata, Ontario, along with employees of Catena. These 1,600, many of whom worked for Nortel, comprise less than 30 percent of Ciena's workforce, but represent the company's largest operational hub and complete half of its research and development work.[11]

Ciena acquired Cyan, which offers platforms and software systems for network operators, for approximately $400 million in 2015.[60][61] The assets of TeraXion Inc., a network management system company based in Quebec City, were purchased for $32 million in 2016.[62][63] Ciena acquired Packet Design, an Austin-based network performance management software company specializing in network optimization, route analytics, and topology, in 2016.[64] In 2018, Ciena purchased software and services company DonRiver for an undisclosed amount.[65]

Operations in India

Ciena opened a campus in Gurgaon, India, in 2006. The campus focuses on research and development,[66] and was further expanded in 2018 to begin manufacturing products for local markets. There were approximately 1,500 employees on site, representing 20 percent of the company's global workforce, as of May 2018.[4]

Ciena and Sify partnered in mid 2018 to increase the information and communications technology company's network capacity from 100G to 400G. Ciena's converged packet optical products support big data analysis, cloud computing, and the Internet of things across 40 of Sify's data centers in India.[67] In 2019, Bharti Airtel used Ciena equipment to build a 130,000 km photonic control plane network, connecting more than 4,000 locations in India.[68][69] Ciena provides converged packet optical and Ethernet services to Bharti Airtel, Jio, and Vodafone Idea Limited, and supplies equipment to the Government of India, as of mid 2019.[70]

Rajesh Nambiar was named the chairman and president of Ciena India in mid 2019.[71]

Products

Ciena develops and markets equipment, software and services, primarily for the telecommunications industry and large cloud service firms. Their products and services support the transport and management of voice and data traffic on communications networks.[72][73]

Network infrastructure

Ciena's network equipment includes optical network switches and routing platforms to manage data load on telecommunications networks.[74][75] The company launched its WaveLogic 5 modem platform in 2019. The platform provides network capacity up to 800G.[76] Ciena also provides technology and equipment for undersea cable networks.[77]

Software and analytics

The company's Blue Planet software platform is used by telecoms companies for programming communications networks, including for network automation.[73] It includes a service that uses machine learning algorithms that analyze anomalies in a network to predict issues, and identify actions for the network operators to take in order to prevent network outages and further disruptions.[78]

References

  1. ^ a b c "Ciena Corporation 2022 Annual Report (Form 10-K)". U.S. Securities and Exchange Commission. December 16, 2022.
  2. ^ a b Bjerken, LeAnn (July 19, 2018). "Ciena Corp. to close its Spokane Valley office this fall". Spokane Journal of Business. Retrieved June 20, 2019.
  3. ^ a b "Gary B. Smith". Daily Record. April 2, 2019. Retrieved July 9, 2019.
  4. ^ a b Khan, Danish (May 11, 2018). "Ciena to start local manufacturing in India; says India fastest growing market globally". The Economic Times. Retrieved July 26, 2019.
  5. ^ a b Gallagher, Dan (December 13, 2018). "No Optical Illusion at Ciena". The Wall Street Journal. Retrieved June 19, 2019.
  6. ^ a b La Monica, Paul R. (June 6, 2019). "Huawei wariness is helping an American networking company". CNN Business. Retrieved June 19, 2019.
  7. ^ Savitz, Eric J. (June 6, 2019). "Ciena Stock Is Soaring on Strong Earnings and 'Very Good Execution'". Barron's. Retrieved June 19, 2019.
  8. ^ "Ciena Corp Moving HQ to Station Ridge in Hanover". citybizlist Baltimore. citybizlist. Archived from the original on 28 June 2013.
  9. ^ a b Mirabella, Lorraine (December 13, 2018). "As global demand spurs strong results, Hanover-based Ciena could benefit from China tensions". The Baltimore Sun. Archived from the original on February 27, 2020. Retrieved June 19, 2019.
  10. ^ "Company News; Ciera Shares Leap After Company Wins Korea Contract". The New York Times. September 26, 2000. Retrieved June 20, 2019.
  11. ^ a b c d Bagnall, James (January 2, 2019). "Bagnall: Ciena's blowout year — built from the ghost of Nortel". Ottawa Citizen. Retrieved June 20, 2019.
  12. ^ Markoff, John (March 3, 1997). "Fiber-Optic Technology Draws Record Stock Value". The New York Times.
  13. ^ a b Auerweck, Steve (May 17, 1993). "Optelecom, HydraLite become partners Optelecom Inc. of Gaithers...". The Baltimore Sun.
  14. ^ a b "Ciena Corp – IPO: 'S-1/A' on 2/7/97".
  15. ^ a b c d e f g h Ribbing, Mark (August 16, 1998). "Ciena Corp. built on dreams, risks Decision: Shareholders will vote Friday on the sale of the Linthicum telecommunications company, one of the most successful U.S. start-ups". The Baltimore Sun. Retrieved June 14, 2019.
  16. ^ a b c d e Mack, Toni (October 6, 1997). "Communications:the next wave". Forbes. Retrieved June 14, 2019.
  17. ^ a b c Anders, George (June 5, 1998). "With Ciena, Investors Hit a Jackpot That's One for the Record Books". The Wall Street Journal. Retrieved June 14, 2019.
  18. ^ "Big Milestones from our 25 Years at Ciena".
  19. ^ "25 Big Milestones from our 25 Years at Ciena". www.ciena.com. Retrieved May 25, 2020.
  20. ^ Markoff, John (March 3, 1997). "Fiber-Optic Technology Draws Record Stock Value". The New York Times. Retrieved June 24, 2019.
  21. ^ Holseon, Laura M. (September 21, 1998). "The Story of a Failed Merger Proves to Be a Page Turner". The New York Times. Retrieved June 21, 2019.
  22. ^ Lawrence M., Fisher (February 22, 1999). "Outlook Brightens for Ciena After Catastrophic '98 Drop". The New York Times. Retrieved June 21, 2019.
  23. ^ Feder, Barnaby J. (March 19, 2001). "The Markets: Market Place; Despite Soaring Profits and Sales, Ciena Is Tarred by Nasdaq Brush". The New York Times. Retrieved June 20, 2019.
  24. ^ Fisher, Lawrence M. (September 15, 1998). "Let's Call the Whole Thing Off: Tellabs Drops Acquisition of Ciena". The New York Times. Retrieved June 24, 2019.
  25. ^ "Business: Diary; Turning Tides Sink A Big Technology Deal". The New York Times. September 20, 1998. Retrieved June 24, 2019.
  26. ^ a b c d e f g h Bagnall, James (June 24, 2016). "Against all odds: How Ciena and its Nortel engineers won optical". Ottawa Citizen. Retrieved July 24, 2019.
  27. ^ "Technology; Ciena, Fiber Optic Company, Reports a Loss". The New York Times. May 18, 2001. Retrieved June 20, 2019 – via Bloomberg News.
  28. ^ a b "Technology Briefing : Hardware: Ciena Wins First AT&T Order". The New York Times. May 23, 2001. Retrieved June 20, 2019 – via Bloomberg News.
  29. ^ Feder, Barnaby J. (February 7, 2001). "Technology Briefing: Telecommunications; Ciena Raises $1.5 Billion". The New York Times. Retrieved June 20, 2019.
  30. ^ Reardon, Marguerite (February 19, 2004). "Ciena scoops up start-ups". CNET. Retrieved July 31, 2019.
  31. ^ a b "Technology Briefing : Telecommunications: Corvis Infringed Ciena Patent, Jury Says". The New York Times. April 29, 2003. Retrieved June 20, 2019 – via Bloomberg News.
  32. ^ a b Walsh, Mary Williams; Romero, Simon (February 19, 2002). "In a Merger Of Networkers, Ciena Will Buy ONI Systems". The New York Times. Retrieved June 20, 2019.
  33. ^ a b "Technology Briefing : Hardware: Ciena Loss Widens On Costs To Retire Debt". The New York Times. February 21, 2003. Retrieved June 20, 2019 – via Bloomberg News.
  34. ^ "Technology Briefing: Hardware: Ciena Posts Higher-Than-Expected Loss". The New York Times. February 4, 2004. Retrieved June 20, 2019 – via Bloomberg News.
  35. ^ "$521 Million Bid for Nortel Unit". The New York Times. October 7, 2009. Retrieved June 20, 2019.
  36. ^ Sali, David (May 8, 2015). "Ciena to move to new Kanata North campus". Ottawa Business Journal. Archived from the original on June 25, 2022. Retrieved August 1, 2019.
  37. ^ "Ciena". Fortune. Archived from the original on February 27, 2020. Retrieved June 20, 2019.
  38. ^ Lundegaard, Karen (February 18, 1998). "Georgia Tech Firms Seem, At Last, Worth Watching". The Wall Street Journal. Retrieved June 24, 2019.
  39. ^ "Ciena expands service offerings with acquisition of ATI Telecom International Ltd". Baltimore Business Journal. January 26, 1998. Retrieved June 24, 2019.
  40. ^ Ribbing, Mark (January 27, 1998). "Ciena to buy equipment installer ATI Telecom would enable acquirer to do 'the whole package'". The Baltimore Sun. Retrieved June 24, 2019.
  41. ^ "Company News; Ciena in $52.4 Million Stock Deal for ATI Telecom". The New York Times. January 27, 1998. Retrieved June 24, 2019 – via Bloomberg News.
  42. ^ Kenney, Martin; Mowery, David C. (June 18, 2014). Public Universities and Regional Growth: Insights from the University of California. Stanford University Press. p. 65. ISBN 9780804791427. Retrieved July 30, 2019.
  43. ^ Ribbing, Mark (June 4, 1998). "Ciena may lose its name and keep a bit of dazzle After 'joining forces' with Tellabs, firm sees more Md. growth". The Baltimore Sun. Retrieved June 24, 2019.
  44. ^ "Ciena to Acquire Lightera and Omnia". Los Angeles Times. March 16, 1999. Retrieved June 20, 2019 – via Bloomberg News.
  45. ^ "Company News; Ciena in Two Acquisitions for $980 Million". The New York Times. March 16, 1999. Retrieved June 21, 2019 – via Bloomberg News.
  46. ^ Sorkin, Andrew Ross (December 20, 2000). "Technology Briefing: Hardware; Ciena Buying Cyras for $2 Billion". The New York Times. Retrieved June 24, 2019.
  47. ^ Orman, Neil (January 7, 2001). "Cyras buy gives Ciena stronger hand in optical competition". Silicon Valley Business Journal. Retrieved June 24, 2019.
  48. ^ Santiago, William (September 1, 2002). "Executive Life; Squeezing Yourself Out (for the Company)". The New York Times. Retrieved June 20, 2019.
  49. ^ a b c Hirsh, Stacey (March 2, 2006). "Ciena staging comeback by diversifying". The Baltimore Sun. Retrieved June 25, 2019.
  50. ^ Noguchi, Yuki; McCarthy, Ellen (April 10, 2003). "Ciena to Acquire WaveSmith Networks". The Washington Post. Retrieved June 24, 2019.
  51. ^ "Ciena expands WaveSmith investment to buyout". EE Times. April 10, 2003. Retrieved June 24, 2019.
  52. ^ "Ciena pays $45 million for storage networking specialist Akara". EE Times. August 21, 2003. Retrieved June 24, 2019.
  53. ^ "Ciena buys Catena, Internet Photonics in deals worth $636 million". EE Times. February 19, 2004. Retrieved June 25, 2019.
  54. ^ "Ciena buying Ottawa's Catena". The Globe and Mail. February 19, 2004. Retrieved June 25, 2019.
  55. ^ "Ciena to acquire Internet Photonics". Electronic Component News. Advantage Business Media. March 31, 2004. Retrieved July 30, 2019.[permanent dead link‍]
  56. ^ Lawson, Stephen (January 23, 2008). "Carrier Gear Vendor Ciena Buys World Wide Packets". PC World. Archived from the original on December 3, 2020. Retrieved July 30, 2019.
  57. ^ "Ciena Said to Win Nortel Unit for $769 Million". The New York Times. November 23, 2009. Retrieved June 20, 2019.
  58. ^ "Ciena Beats Nokia-Siemens to Nortel Unit". The New York Times. December 3, 2009. Retrieved June 20, 2019.
  59. ^ Dummett, Ben (November 24, 2009). "Ciena Buys Nortel Assets for $769 Million". The Wall Street Journal. Retrieved July 30, 2019.
  60. ^ Dulaney, Chelsey (May 4, 2015). "Ciena to Buy Cyan for $400 Million". The Wall Street Journal. Retrieved July 9, 2019.
  61. ^ Dance, Scott (May 4, 2015). "Ciena to buy software firm Cyan for $400M". The Baltimore Sun. Retrieved June 25, 2019.
  62. ^ Wells, Carrie (January 19, 2016). "Ciena Corp. to buy TeraXion Inc.'s assets for $32 million". The Baltimore Sun. Retrieved June 25, 2019.
  63. ^ Burt, Jeff (January 22, 2016). "Ciena Buys TeraXion Assets to Bolster Optical Networking Lineup". eWeek. Retrieved July 26, 2019.
  64. ^ "Ciena to Acquire Lone Rock-Backed Packet Design". The Wall Street Journal. May 31, 2018. Retrieved June 25, 2019.
  65. ^ Haranas, Mark (September 5, 2018). "Ciena Buying DonRiver to Boost 'Adaptive Network' Automation Strategy". CRN. Retrieved June 25, 2019.
  66. ^ Rajendran, M. (July 20, 2007). "US-based Ciena to make India top hub for R&D". Hindustan Times. Retrieved July 26, 2019.
  67. ^ "Sify partners with Ciena to upgrade network capacity from 100G to 400G". The Economic Times. June 28, 2018. Retrieved July 31, 2019.
  68. ^ "Airtel, Ciena to build photonic control plane networks". Business Line. February 25, 2019. Retrieved July 26, 2019.
  69. ^ Saurbh, Utkarsh (February 25, 2019). "Airtel and Ciena to build one of the world's largest photonics control plane networks in India". The Times of India. Retrieved July 30, 2019.
  70. ^ Khan, Danish (July 27, 2019). "Ciena says to play a bigger role in India's 5G journey; ups focus on govt vertical". The Economic Times. Retrieved August 1, 2019.
  71. ^ "Ciena appoints Rajesh Nambiar as chairman and president of Ciena India". The Economic Times. July 1, 2019. Retrieved July 30, 2019.
  72. ^ Mike Dano (April 2, 2020). "COVID-19-driven network traffic shows signs of stabilizing". LightReading. Retrieved May 5, 2020.
  73. ^ a b Ray Le Maistre (September 5, 2019). "Web-Scale Business Fuels Ciena's Growth but Stock Takes a Hit". LightReading. Retrieved May 6, 2020.
  74. ^ "Ciena expects strong demand from cloud, mobile computing". TelecomEngine.com. June 10, 2013. Archived from the original on October 21, 2021. Retrieved May 7, 2020.
  75. ^ Hardy, Stephen (February 24, 2020). "Ciena offers 5168, 5166, and 5164 routers for 5G mobile network support". Lightwave. Retrieved July 28, 2020.
  76. ^ Kelsey Ziser (March 5, 2019). "As Sales Boom, Ciena Hits the 800G Transmission Mark". LightReading. Retrieved May 7, 2020.
  77. ^ "Telstra Launches Continuous Connection on its Subsea Infrastructure". TelecomEngine.com. January 21, 2019. Archived from the original on October 21, 2021. Retrieved May 7, 2020.
  78. ^ Kelsey Ziser (May 14, 2019). "Ciena: We'll Stop 95% of Network Outages". LightReading. Retrieved May 7, 2020.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Ciena&oldid=1189066022"