Arielle Sumits

Senior Analyst

Service Provider Marketing

Arielle Sumits is a Senior Analyst with Cisco’s worldwide service provider marketing group. She is the founding analyst and primary architect of the Internet and mobile traffic forecasts that are a cornerstone of the Cisco Visual Networking Index (VNI) — the company's ongoing effort to quantify and analyze the growth and use of the Internet and IP networks worldwide. She is also responsible for the data center and cloud traffic forecasts that are published as part of the Cisco Global Cloud Index (GCI) — the company's ongoing effort to assess the growth of global data center and cloud-based IP traffic as well as analysis of trends associated with data center virtualization and cloud computing.

Arielle has more than 15 years of telecom industry experience in a variety of research roles, from quantitative data analysis to qualitative market assessment. Arielle has more than 20 years of professional experience including programming and product marketing positions at Electronic Data Systems (EDS) and startup Frictionless Commerce.

She earned a B.S. degree in Physics from the Massachusetts Institute of Technology (MIT).

Follow her on twitter at @ariellesumits.


February 8, 2018


Five things that are bigger than the Internet: Findings from this year’s Global Cloud Index

5 min read

The scale of the Internet is awe-inspiring. By 2021, there will be 4.6 billion people and 27 billion devices connected to the Internet, and Internet traffic will reach 2.8 trillion.

The Internet is Closer to Home Than You Think

3 min read

The Internet is global in spirit. But the traffic associated with it is increasingly local in nature, as we found in our recent VNI study.

February 7, 2017


Top 5 Surprises from the 2017 Mobile VNI Study

4 min read

What are the top 5 shocking findings from the 2017 Mobile Visual Neworking Index (VNI) Study? See what this may mean for the mobile network, 5G, IoT, and more.

December 23, 2016


What happens in a “Data Center Day”? (A Data Center Geek’s Version of the “Internet Minute”)

1 min read

Inspired by Excelacom’s excellent and popular “What happens in an Internet minute” infographic, we’ve put together a nerdier version pertaining to data centers using data from our recent Global Cloud Index along with a few other figures. It’s just as impressive in our view, if a little more obscure. For the two figures in the […]

November 9, 2016


Polls emerge as the biggest losers in the 2016 U.S. Presidential Election. Could big data have made a difference?

5 min read

In the 2016 U.S. Presidential Election, we witnessed the stunning and unexpected defeat of a methodology in addition to a candidate: poll-based election predictions. November 8, 2016 was a spectacular failure of poll-based predictions, fast on the heels of the spectacular failure of the poll-based predictions in the 2015 U.K. General Election. Since we have […]

November 8, 2016


Is polling data big data? A back-of-the-envelope calculation

3 min read

For the past year Americans have read about polling data almost daily, so the casual observer may be forgiven for thinking there are mountains and mountains of data being collected to help make sense of this year’s unusual election. The truth is, though, that polling data is not big data, either in volume, velocity, or […]

Has Internet growth peaked?

3 min read

Will the Internet continue to grow at historical rates, or has growth peaked? This was the question was posed by Sanjay Patel of CableLabs to the panelists on the Bandwidth Consumption Trends panel during the August 2016 CableLabs Summer conference. I was pleased to have been invited to participate in the panel, alongside Rob Kenny […]

Boom! Five Applications that Showed Explosive Growth in 2015

3 min read

We’re always on the lookout for the next big application to drive Internet traffic. When we see a type of traffic almost doubling in a year, we put it on our watch list. Below are five that topped our watch list based on the most recent Cisco Visual Networking Index (VNI) Complete Forecast. VIRTUAL REALITY […]

February 3, 2016


Major Mobile Milestones – The Last 15 Years, and the Next Five

6 min read

Cowritten with Usha Andra, Senior Analyst, Visual Networking Index, Service Provider Marketing 2016 marks the 10th anniversary of the VNI Mobile Forecast. For a decade, we have analyzed, reviewed, and made projections about mobile networking and how consumers and business users’ behaviors and expectations have changed based on device innovations, network enhancements, and a seemingly […]

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