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Global data center interconnect (DCI) revenues grew briskly in 4Q15, rising 18.6% sequentially to $830m, and were 21.1% higher than the 4Q14 level. Annual 2015 DCI spending rose 16.1% from 2014, reaching $2.9bn globally. Ciena maintained its market leadership position in 2015.


  • Growth in the global market for DCI resumed in 4Q15, with sales growing 18.6% from 3Q15 and up 21.1% from the year-ago quarter. For full-year 2015, DCI revenues of $2.9bn were up 16.1% from 2014.
  • Communications service providers (CSPs) still make up the greatest portion of DCI spending, but Internet content providers (ICPs) and carrier-neutral providers (CNPs) have grown to the point where they make up more than a third of all DCI spending.
  • Ciena leads all vendors with nearly 20% global share. Together, the top five vendors posted over $1.9bn of DCI revenues in 2015, representing 67% of all DCI spending.

Features and Benefits

  • Details revenues of top-performing vendors in the global DCI market, including share position by data center operator segment and region.
  • Examines changes in product demand resulting from the global economic climate.
  • Details spending in the metro versus backbone DCI market

Key questions answered

  • How did the global optical networking market perform in 4Q15 and 2015?
  • What are the trends by product segment and region?
  • Which ON vendors are increasing their share in the global market? Which products are behind their success?

Table of contents


  • In brief
  • Ovum view

Market description

  • Data center interconnect
  • Data center operator market segmentation

4Q15 and 2015 results

  • Global DCI ended 2015 with a bang

Market share

  • Ciena leads all vendors for DCI market share

Market share changes

  • Analysis of 2015 results

Global segment analysis

  • CSP
  • Government/research and education
  • Enterprise

Product-level analysis

  • Segment overview
  • Backbone data center interconnect
  • Metro data center interconnect

Regional analysis

  • North America dominates DCI spending


  • Listing of vendors and products included in this report’s analysis
  • Methodology
  • Further reading
  • Author

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