Zeus Kerravala

Zeus Kerravala is the founder and principal analyst with ZK Research, and provides a mix of tactical advice to help his clients in the current business climate and long-term strategic advice. Kerravala provides research and advice to end-user IT and network managers, vendors of IT hardware, software and services and the financial community looking to invest in the companies that he covers.

Key Takeaways from Cisco’s Annual Internet Report

Key Takeaways from Cisco’s Annual Internet Report

Cisco's report on internet use says businesses need to be ready for the massive wave of devices and need for bandwidth that are coming in the next five years.

The NFL knows a lot about deploying high-capacity WiFi networks

The NFL knows a lot about deploying high-capacity WiFi networks

The NFL's lessons-learned from supplying Wi-Fi services to tens of thousands of fans during games can be applied to enterprises with large numbers of IoT devices.

5 firewall features IT pros should know about but probably don’t

5 firewall features IT pros should know about but probably don’t

As a foundational network defense, firewalls continue to be enhanced with new features, so many that some important get overlooked.

How to deal with the impact of digital transformation on networks

How to deal with the impact of digital transformation on networks

To unleash the promise of digital transformation, businesses need to embrace automation and software-defined networking as well as improve security.

How to buy network automation tools

How to buy network automation tools

Here’s the factors you need to weigh so you can make a smart decision about the network automation tool that’s best for your organization.

Passive optical LAN: Its day is dawning

Passive optical LAN: Its day is dawning

As bandwidth demands continue to increase and with copper cabling having distance shortcomings, passive optical networks looks like an alternative that can solve a number of problems.

How cloud providers' performance differs

How cloud providers' performance differs

The 2019 ThousandEyes Benchmark report shows that not all cloud providers are created equal across all regions

SD-WANs Enable Scalable Local Internet Breakout but Pose Security Risk

SD-WANs Enable Scalable Local Internet Breakout but Pose Security Risk

Local internet breakout is a modern approach to the SD-WAN. But it must be done securely. Read on for requirements that should be addressed at the outset of deployment.

Fortinet CEO: Network and security technologies give rise to security-driven networking

A conversation about the future of network security with Fortinet CEO Ken Xie

How SD-WAN is evolving into Secure Access Service Edge

How SD-WAN is evolving into Secure Access Service Edge

Secure access service edge (SASE), pronounced 'sassy,' combines elements of SD-WAN and network security into a single cloud-based service. It supports all types of edges, including WAN, mobile, cloud, and edge computing.

Pennsylvania school district tackles network modernization

Pennsylvania school district tackles network modernization

NASD upgrades its campus core to be the foundation for digital learning.

3 strategies to simplify complex networks

3 strategies to simplify complex networks

Innovations such as SD-WAN, Wi-Fi 6 and 5G have enabled networks to do more, but they’ve also made them complex. Software, machine learning, and automation will alleviate the problem.

To secure industrial IoT, use segmentation instead of firewalls

To secure industrial IoT, use segmentation instead of firewalls

Firewalls have been the de facto standard for securing internal devices, but the industrial internet of things (IIoT) will change that. Segmentation is the better option in those scenarios.

IT Leaders Need to Get Aggressive with SD-WAN

IT Leaders Need to Get Aggressive with SD-WAN

If your network team isn’t ready to modernize the network, it will hold the company back. Here’s why it is time to aggressively advocate for SD-WAN in your organization.

How SD-Branch addresses today’s network security concerns

How SD-Branch addresses today’s network security concerns

New digital technologies such as IoT at remote locations increase the need to ID devices and monitor network activity. That’s where SD-Branch can help, says Fortinet’s John Maddison.

SD-WAN Buyers Should Think Application Performance as well as Resiliency

SD-WAN Buyers Should Think Application Performance as well as Resiliency

SD-WAN decision makers need to look to suppliers that have specific technologies integrated into it that can act when congestion occurs.

Mist's AI-driven virtual assistant speeds up network troubleshooting

Mist's AI-driven virtual assistant speeds up network troubleshooting

Digital assistants using artificial intelligence will have a bigger impact as an IT support tool, as Mist Systems' virtual network assistant Marvis demonstrates.

Cloud adoption drives the evolution of application delivery controllers

Cloud adoption drives the evolution of application delivery controllers

Application delivery controllers (ADCs) are on the precipice of shifting from traditional hardware appliances to software form factors.

5G will augment Wi-Fi, not replace it

5G will augment Wi-Fi, not replace it

Jeff Lipton, vice president of strategy and corporate development at Aruba, adds a dose of reality to the 5G hype, discussing how it and Wi-Fi will work together.

Survey finds SD-WANs are hot, but satisfaction with telcos is not

Survey finds SD-WANs are hot, but satisfaction with telcos is not

A recent survey of over 400 IT executives by Cato Networks found that legacy telcos might be on the outside looking in for SD-WANs.

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