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Results for: Remove Search TermAuthor: Zeus Kerravala
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Zeus Kerravala

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Research Categories

Unified Communications and Collaboration, Mobile Cloud, Core and Edge Network

Zeus Kerravala is a member of Yankee Group's Affiliate Program focused on unified communications and collaboration, cloud computing and network infrastructure.

Kerravala is the founder and principal analyst of ZK Research, where he provides a mix of tactical advice to help his clients in the current business climate and long-term strategic advice. He works with end-user IT and network managers, vendors of IT hardware, software and services and the financial community looking to invest in the companies he covers. His research includes a mix of end-user and channel interviews, surveys of IT buyers, investor interviews and briefings from the IT vendor community, all of which provide a 360-degree view of the technologies he covers from buyers of technology, investors, resellers and manufacturers.

Kerravala uses the traditional online and e-mail distribution channel for the research but heavily augments opinion and insight through social media. He is also heavily quoted in business press and the technology press and is a regular speaker at events such as Interop and Enterprise Connect.

Prior to ZK Research, Kerravala spent 10 years as an analyst at Yankee Group. He joined Yankee Group in March of 2001 as a Director and held positions up through Senior Vice President and Distinguished Research Fellow.

For more information on the Affiliate Program, click here.

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  1. Unified Communications Can Bolster a Company's Disaster Recovery Plan

    IT executives looking to maximize their UC investments or searching for a way to gain budget approval should make UC a core component of a company's business continuity and disaster recovery plans....

    February 9, 2012 | Blog | by Zeus Kerravala

  2. Unified Communications Buyers Should Think "Sessions," Not "Calls"

    In 2012, look for the Unified Communications (UC) industry to finally evolve away from using terms like "calls" and "trunks" and replace it with the concept of a "session." I believe this to be an important step on the road to more pervasive UC deployments, particularly mobile UC....

    January 3, 2012 | Blog | by Zeus Kerravala

  3. The Impending IT Sea Change: Network Service Evolution Gives Rise to Active DDI

    Consumerization, mobility, cloud computing, device evolution and the shift to IPv6 are transforming the corporate network and driving up the number of endpoints connected to it by an order of magnitude, making advancements in network services a necessity. IT managers must look toward active DDI solutions to effectively manage core network services and gain the network agility required to move organizations into the mobile world.

    Dec. 6, 2011 | Report | by Zeus Kerravala 

  4. Extreme Strengthens Its Mobility Story with "Access" Switches

    Back in March, I wrote a blog post about Extreme Networks new positioning around mobility. This was a very bold move for Extreme considering they are best known as a wired switching vendor....

    July 20, 2011 | Blog | by Zeus Kerravala

  5. Cisco Introduces AppHQ

    Today, Cisco announced AppHQ , a corporate-focused Android app store for its Cius tablet....

    June 29, 2011 | Blog | by Zeus Kerravala

  6. Cisco Expands its Communications and Collaboration Portfolio with Cius and AppHQ

    Cisco today announced AppHQ, an enterprise-focused Android app store for its Cius tablet. The Cius' dedicated corporate focus, along with AppHQ, will be a differentiator for Cisco and allow it to stretch its lead over Microsoft and other competitors.

    Jun. 29, 2011 | Report | by Zeus Kerravala 

  7. The Technology Behind Star Trek

    I was on a flight earlier this week and watched one of my favorite movies Star Trek II: The Wrath of Khan . It made me think about how the movie, and even the original TV shows that dated back to the 60, gave us a look into where technology was going and indeed has gone today....

    June 27, 2011 | Blog | by Zeus Kerravala

  8. Note to the incoming Fed CIO: Continue the Kundra mission of user first IT

    Last week the White House announced that Vivek Kundra, the first ever federal government CIO, will leave his position in August. Prior to Kundra, federal IT was considered about as aggressive as Lebron James in the NBA finals....

    June 24, 2011 | Blog | by Zeus Kerravala

  9. Hardware Matters When Scaling the Cloud!

    One of the most important changes in scaling corporate data center has been the evolution of the application delivery controller (ADC). The ADC bridges the network and application environments together....

    June 13, 2011 | Blog | by Zeus Kerravala

  10. New Mobility Requires a New Network Strategy

    Virtualization, advancements in wireless, cloud computing and an influx of consumer technology in the workplace are redefining the very nature of mobility. Companies that wish to capitalize on new mobility must shed conventional thinking and embrace a more mobile-oriented approach to the architecture and operations of the corporate network.

    Jun. 7, 2011 | Report | by Zeus Kerravala 

  11. Top 10 VoIP Misconceptions

    In this slide deck, Yankee Group explores 10 common misconceptions about enterprise VoIP. Despite VoIP's maturity, many companies are still hesitant to deploy it. VoIP solution providers must do a better job of educating customers and prospects to accelerate adoption.

    Jun. 2, 2011 | Report | by Zeus Kerravala 

  12. Polycom Invests, HP Divests

    June started with a bang in the corporate video communications market, with Polycom making several announcements, including that it is acquiring Hewlett-Packard's Halo business to strengthen its competitive position against Cisco. Although the news increases the potential for Polycom to gain on market leader Cisco, Polycom needs smart execution to turn potential into share gain.

    Jun. 2, 2011 | Report | by Zeus Kerravala 

  13. Polycom goes from hunted to hunter

    Amid much speculation that Polycom was on the selling block, with HP being the primary possible acquirer, Polycom made the following announcements this morning: Polycom acquired the Visual Collaboration Unit from HP, which includes all of the Halo products and managed services Polycom and ...

    June 1, 2011 | Blog | by Zeus Kerravala

  14. Case Study: Deploying an Application Delivery Network to Improve User Experience

    Delivering applications to corporate workers over a WAN can be challenging due to different applications' unique performance requirements. Windham Professionals deployed an application delivery network to solve performance woes and achieved up to an 80 percent improvement in application performance while realizing a seven-month ROI.

    May. 24, 2011 | Report | by Zeus Kerravala 

  15. Network: Connecting Users to the Experience

    Yankee Group defines the Connected Experience as one that combines networks, devices and content into a seamless engagement that captivates users. Here we explain the network's role in what we estimate is a U.S.$2 trillion Connected Experience opportunity.

    May. 17, 2011 | Report | by Chris Nicoll | CO-AUTHORS: Zeus Kerravala  

  16. Connected Experience: The New Differentiator

    Yankee Group defines the Connected Experience as one that combines networks, devices and content into a seamless engagement that captivates users. Here we explain how creating compelling Connected Experiences will put industry players in a position to lead a U.S.$2 trillion market.

    May. 17, 2011 | Report | by Sheryl Kingstone | CO-AUTHORS: Zeus Kerravala  

  17. Cloud Content: Mobilizing the Experience

    Yankee Group defines the Connected Experience as one that combines networks, devices and content into a seamless engagement that captivates users. Here we explain content's role in what we estimate is a U.S.$2 trillion Connected Experience opportunity.

    May. 17, 2011 | Report | by Sandra Palumbo | CO-AUTHORS: Zeus Kerravala  

  18. Devices: Transforming the Experience

    Yankee Group defines the Connected Experience as one that combines networks, devices and content into a seamless engagement that captivates users. Here we explain devices' role in what we estimate is a U.S.$2 trillion Connected Experience opportunity.

    May. 17, 2011 | Report | by Denise Lund | CO-AUTHORS: Andy Castonguay, Zeus Kerravala  

  19. Google?s Chrome OS Book Addresses the Connected User

    This week at Google s I/O developer conference, the company announced the general availability of two Chrome OS Laptops. Both Best Buy and Amazon will be selling the devices made by Acer and Samsung....

    May 12, 2011 | Blog | by Zeus Kerravala

  20. The Empire Strikes Back: Cisco Brings On Board Fabric Father, David Yen

    The struggles at Cisco have been well documented over the past year or so. Much of the reason for this is large number of executive departures that have left Cisco over the past few years....

    May 11, 2011 | Blog | by Zeus Kerravala

  21. Microsoft Buys Skype: Big Bang for UC; Big Bust for Consumers

    Microsoft's U.S.$8.5 billion purchase price for Skype is based on the two companies delivering synergies for both businesses and consumers. Unfortunately, that price is too high. While this acquisition will bolster Microsoft's efforts in moving enterprise unified communication into the cloud, Microsoft's struggling online consumer businesses won?t see any benefits.

    May. 10, 2011 | Report | by Zeus Kerravala | CO-AUTHORS: Carl Howe  

  22. Brocade Fabricates Its Data Center Strategy with CloudPlex

    Fabrics are all the rage today with data center archtiects and solution providers. Last year, at Brocade's annual "Tech Day" analyst conference, the company unveiled its fabric strategy....

    May 6, 2011 | Blog | by Zeus Kerravala

  23. Connected Experience: The Next Frontier

    In this slide deck, Yankee Group examines how connected users' increasing clout is shifting the focus of power within the communications industry away from suppliers and to the masses--a revolution we call Connected Experience. The result is a perfect storm of both huge opportunities and menacing threats for all ecosystem players.

    May. 4, 2011 | Report | by Gigi Wang | CO-AUTHORS: Carl Howe, Zeus Kerravala  

  24. RIM Enters the Enterprise Tablet Wars: A Battle on Two Fronts

    Research In Motion's (RIM's) long-awaited PlayBook tablet is finally here, and the battle for the enterprise market is heating up. If it doesn't appeal to both prosumers and enterprise IT buyers, the PlayBook will be relegated to niche competition. Successful corporate tablet vendors will need to find a way to tie the tablet into the larger solution set of other products to drive an end-to-end enterprise value proposition.

    Apr. 15, 2011 | Report | by Zeus Kerravala | CO-AUTHORS: Denise Lund  

  25. Alcatel-Lucent?s vision of the Dynamic Enterprise is Centered on Customer Experience

    This week kicked off Alcatel-Lucent's Dynamic Enterprise Tour in Barcelona, Spain. The keynote was given by ALU Enterprise President, Tom Burns, and introduced the tag line "Changing the conversation"....

    April 7, 2011 | Blog | by Zeus Kerravala

  26. The Time Is Right for Mobile UC in the Enterprise

    Enterprises see the value in mobile UC, but like traditional UC, it is unclear if and when adoption will finally take off. It is important to remember that UC is most valuable in enabling collaboration among workers, no matter where they are. A UC strategy that integrates mobile and desktop UC is the key to adoption and use by today's connected users.

    Apr. 7, 2011 | Report | by Sandra Palumbo | CO-AUTHORS: Zeus Kerravala  

  27. Aruba Networks: Wireless, wired and now outdoors

    High-flying Aruba Networks has surfed the 802.11n wave better than any other vendor to date. At Yankee Group, we see the shift to n as one of the major contributors to our "perfect storm" scenario that will massively overhaul corporate IT....

    April 6, 2011 | Blog | by Zeus Kerravala

  28. The Next Tipping Point: The Connected Experience

    Ubiquitous network connectivity was only the first step in our evolution to a globally connected society. New networks, devices and cloud-sourced content are creating a Connected Experience that is changing the very nature of how we live, work and play.

    Mar. 21, 2011 | Report | by Carl Howe | CO-AUTHORS: Zeus Kerravala, Sheryl Kingstone, Sandra Palumbo, Denise Lund, Chris Nicoll  

  29. An Extreme Bet on Mobility

    This week at Enterprise Connect , networking solution provider Extreme Networks laid out its vision for the mobile world and its own role in it....

    March 2, 2011 | Blog | by Zeus Kerravala

  30. At Long Last, Juniper Unveils Stratus; Fights Metcalf's Law with Occam's Razor

    Approximately three years ago Juniper announced its next generation data center vision and related network strategy. At the core of the strategy was something known as Stratus , Juniper s architecture for a virtual data center....

    February 25, 2011 | Blog | by Zeus Kerravala

  31. Sprint and Ericsson's Network Advantage: Lessons Learned

    A year into Sprint's landmark Network Advantage outsourcing deal with Ericsson, the operator asserts that ensuring success means focusing on open communication with managed services vendors rather than contractual minutiae. As more communications service providers consider outsourcing and managed services, they can learn from the progress Sprint and Ericsson have made.

    Jan. 11, 2011 | Report | by Zeus Kerravala | CO-AUTHORS: Sandra Palumbo  

  32. Cloud delivery and Web 2.0 allows IT to conform to the "new norm"

    The new norm is a term that has been used to describe the state of something after a major change. The term became a mainstream term after President Obama used it last November to describe how businesses and people must adjust to the current environment....

    January 10, 2011 | Blog | by Zeus Kerravala

  33. Anywhere Enterprise: 2010 US Unified Communications (UC) FastView Survey

    The Anywhere Enterprise: 2010 US Unified Communications (UC) FastView Survey is an online survey of more than 400 IT decision-makers in the U.S. It covers different UC technologies, with an emphasis on videoconferencing, cloud-based UC, mobile UC as well as SIP trunking and social media. The type of questions asked include: What is your deployment status? What are your purchase plans? What are your barriers/challenges to adoption? What motivates you to deploy? What factors impact your decision to deploy a technology and to select a supplier?

    Dec. 15, 2010 | Survey | by Zeus Kerravala | CO-AUTHORS: Sandra Palumbo  

  34. The iPhone and Johannes Kepler Drive Anywhere Working

    What do the iPhone and Johannes Kepler have in common? It wasn t apples. That was Isaac Newton that had the apple fall on his head. The answer is they were both historical watersheds.

    November 23, 2010 | Blog | by Zeus Kerravala

  35. What Happens When the "Check Cloud" Light Goes on?

    Remember the days when you could look under the hood of your car when your check engine light went on? That feels like eons ago given that many of us have cars with start buttons to literally boot up the "computer."...

    November 17, 2010 | Blog | by Zeus Kerravala

  36. In the Data Center Flat is Phat: Brocade Stitches Together Its Fabric Strategy

    As a kid I remember watching Christopher Columbus argue with Bugs Bunny as to whether the world was flat or round. Columbus stated "the world is round, like my head" and then Bugs hit Columbus in the head with a mallet and stated "the world is flat, like your head."...

    November 17, 2010 | Blog | by Zeus Kerravala

  37. Blue Coat and Brocade Bring Proactive Health Monitoring to Carrier Caching

    This week Blue Coat and Brocade announced the industries first health monitoring solution specifically targeted to Web caching. The joint solution is designed to help communication providers manage the increasing bandwidth demands and costs due to Web 2.0, video and other multimedia traffic....

    October 14, 2010 | Blog | by Zeus Kerravala

  38. 100 Gig-E for 100 Grand? Brocade sets the bar for 100 Gig-E pricing

    Gig-E announcements have been front and center over past six months. Juniper was the first to announce and then Cisco and Alcatel Lucent issued press releases announcing their products. However, none of these vendors released pricing information on how much 100 Gig-E would cost....

    September 29, 2010 | Blog | by Zeus Kerravala

  39. Big Blue buys BLADE Network Technologies

    On Monday morning IBM announced its intent to acquire privately held BLADE Network Technologies. Although terms of the deal were not announced the acquisition price is rumored to be in the range of $400 million....

    September 28, 2010 | Blog | by Zeus Kerravala

  40. Xsigo Unveils Ethernet-Based Virtual I/O at VMworld

    Analyst Zeus Kerravala discusses Xsigo's newly releases Ethernet-based virtual I/O solution.

    August 31, 2010 | Blog | by Zeus Kerravala

  41. Social Media Will Drive Future UC Deployments

    While tools like blogs, tweets and social networks were once considered the exception in the workplace, they are rapidly becoming the norm. Unified communications solutions can enhance the way workers collaborate and communicate with one another, but they will need to include social media to deliver a complete collaborative experience.

    Aug. 25, 2010 | Report | by Zeus Kerravala 

  42. Is this the end of the line for A10 Networks?

    A10 Networks' business is threatened by patent infringement lawsuits from all sides.

    August 24, 2010 | Blog | by Zeus Kerravala

  43. Can Anything Derail F5?

    Analyst Zeus Kerravala explores what networking sector company should be grabbing attention from Wall Street.

    July 22, 2010 | Blog | by Zeus Kerravala

  44. Oracles introduces new 10GbE products. Software. Hardware. Complete?

    Analyst Zeus Kerravala discusses Oracle's recent x86 server announcement.

    July 14, 2010 | Blog | by Zeus Kerravala

  45. Evolution to a Virtual Data Center Requires a Network Fabric

    Traditional network architectures can no longer handle the requirements of the virtual data center. Instead, enterprises need to migrate to flatter architectures based on emerging network fabric technology. Here we detail fabric strategies from Juniper, Brocade and Cisco.

    Jul. 8, 2010 | Report | by Zeus Kerravala 

  46. Cisco unveils the Cius tablet but don?t expect much competition with iPad

    Zeus Kerravala comments on the Cisco Cius and it's relationship to the iPad.

    June 30, 2010 | Blog | by Zeus Kerravala

  47. Handicapping the Enterprise WAN Optimization Market

    WAN optimization is a broad market category that can help improve application performance, lower the cost of bandwidth and help companies avoid costly network upgrades and new data center buildouts. We profile the top vendors--including Riverbed, Blue Coat and Cisco--and gauge their market success over the next five years.

    Jun. 22, 2010 | Report | by Zeus Kerravala 

  48. Brocade "Strasburgs" Technology Day

    Analyst Zeus Kerravala discussed the successes of Brocade's Technology Day.

    June 15, 2010 | Blog | by Zeus Kerravala

  49. F5 Steps Out of the Data Center and Heads to the Cloud

    Cloud computing is being touted as the next great computing revolution but actual, live deployments are limited. One of the biggest barriers holding cloud computing back is security....

    May 28, 2010 | Blog | by Zeus Kerravala

  50. Virtualization threatens the status quo in enterprise networking

    Analyst Zeus Kerravala comments on the recent announcement Juniper's fabric strategy and what it means for enterprise networking.

    May 18, 2010 | Blog | by Zeus Kerravala


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