Zeus Kerravala

Author Archives: Zeus Kerravala

Wi-Fi 6 with OFDMA opens a world of new wireless possibilities

Wi-Fi 6, also known as 802.11ax, is viewed by many to be game changing, as it’s the first major architectural change to the wireless LAN since its inception. Unlike other standards, which were just faster versions of the previous incarnation, Wi-Fi 6 is built from the ground up to support a world that is hyper-connected over Wi-Fi. To accomplish this, Wi-Fi 6 includes several new features and design enhancements.OFDMA enables more clients to connect to access points Many industry people I have discussed Wi-Fi 6 with believe the most important new feature is something called orthogonal frequency division multiple access (OFDMA), which allows multiple clients with varying bandwidth requirements to be connected to a single AP simultaneously.To read this article in full, please click here

Wi-Fi 6 with OFDMA opens a world of new wireless possibilities

Wi-Fi 6, also known as 802.11ax, is viewed by many to be game changing, as it’s the first major architectural change to the wireless LAN since its inception. Unlike other standards, which were just faster versions of the previous incarnation, Wi-Fi 6 is built from the ground up to support a world that is hyper-connected over Wi-Fi. To accomplish this, Wi-Fi 6 includes several new features and design enhancements.OFDMA enables more clients to connect to access points Many industry people I have discussed Wi-Fi 6 with believe the most important new feature is something called orthogonal frequency division multiple access (OFDMA), which allows multiple clients with varying bandwidth requirements to be connected to a single AP simultaneously.To read this article in full, please click here

Network management must evolve in order to scale container deployments

Applications used to be vertically integrated, monolithic software. Today, that’s changed, as modern applications are composed of separate micro-services that can be quickly brought together and delivered as a single experience. Containers allow for these app components to be spun up significantly faster and run for a shorter period of time providing the ultimate in application agility.  The use of containers continues to grow. A recent survey from ZK Research found that 64 percent of companies already use containers, with 24 percent planning to adopt them by the end of 2020. (Note: I am an employee of ZK Research.) This trend will cause problems for network professionals if the approach to management does not change.To read this article in full, please click here

Network management must evolve in order to scale container deployments

Applications used to be vertically integrated, monolithic software. Today, that’s changed, as modern applications are composed of separate micro-services that can be quickly brought together and delivered as a single experience. Containers allow for these app components to be spun up significantly faster and run for a shorter period of time providing the ultimate in application agility.  The use of containers continues to grow. A recent survey from ZK Research found that 64 percent of companies already use containers, with 24 percent planning to adopt them by the end of 2020. (Note: I am an employee of ZK Research.) This trend will cause problems for network professionals if the approach to management does not change.To read this article in full, please click here

Network management must evolve in order to scale container deployments

Applications used to be vertically integrated, monolithic software. Today, that’s changed, as modern applications are composed of separate micro-services that can be quickly brought together and delivered as a single experience. Containers allow for these app components to be spun up significantly faster and run for a shorter period of time providing the ultimate in application agility.  The use of containers continues to grow. A recent survey from ZK Research found that 64 percent of companies already use containers, with 24 percent planning to adopt them by the end of 2020. (Note: I am an employee of ZK Research.) This trend will cause problems for network professionals if the approach to management does not change.To read this article in full, please click here

Want to use AI and machine learning? You need the right infrastructure

Artificial intelligence (AI) and machine learning (ML) are emerging fields that will transform businesses faster than ever before. In the digital era, success will be based on using analytics to discover key insights locked in the massive volume of data being generated today.In the past, these insights were discovered using manually intensive analytic methods.  Today, that doesn’t work, as data volumes continue to grow as does the complexity of data. AI and ML are the latest tools for data scientists, enabling them to refine the data into value faster.[ Also read: Network operations: A new role for AI and ML | Get regularly scheduled insights: Sign up for Network World newsletters ] Data explosion necessitates the need for AI and ML Historically, businesses operated with a small set of data generated from large systems of record. Today’s environment is completely different where there are orders of magnitude more devices and systems that generate their own data that can be used in the analysis. The challenge for businesses is that there is far too much data to be analyzed manually. The only way to compete in an increasingly digital world is to use AL and ML.To read Continue reading

Want to use AI and machine learning? You need the right infrastructure

Artificial intelligence (AI) and machine learning (ML) are emerging fields that will transform businesses faster than ever before. In the digital era, success will be based on using analytics to discover key insights locked in the massive volume of data being generated today.In the past, these insights were discovered using manually intensive analytic methods.  Today, that doesn’t work, as data volumes continue to grow as does the complexity of data. AI and ML are the latest tools for data scientists, enabling them to refine the data into value faster.[ Also read: Network operations: A new role for AI and ML | Get regularly scheduled insights: Sign up for Network World newsletters ] Data explosion necessitates the need for AI and ML Historically, businesses operated with a small set of data generated from large systems of record. Today’s environment is completely different where there are orders of magnitude more devices and systems that generate their own data that can be used in the analysis. The challenge for businesses is that there is far too much data to be analyzed manually. The only way to compete in an increasingly digital world is to use AL and ML.To read Continue reading

Want to use AI and machine learning? You need the right infrastructure

Artificial intelligence (AI) and machine learning (ML) are emerging fields that will transform businesses faster than ever before. In the digital era, success will be based on using analytics to discover key insights locked in the massive volume of data being generated today.In the past, these insights were discovered using manually intensive analytic methods.  Today, that doesn’t work, as data volumes continue to grow as does the complexity of data. AI and ML are the latest tools for data scientists, enabling them to refine the data into value faster.[ Also read: Network operations: A new role for AI and ML | Get regularly scheduled insights: Sign up for Network World newsletters ] Data explosion necessitates the need for AI and ML Historically, businesses operated with a small set of data generated from large systems of record. Today’s environment is completely different where there are orders of magnitude more devices and systems that generate their own data that can be used in the analysis. The challenge for businesses is that there is far too much data to be analyzed manually. The only way to compete in an increasingly digital world is to use AL and ML.To read Continue reading

What to expect from SD-WANs in 2019

In network circles, there may be no hotter topic right now than software-defined WAN (SD-WAN). Given WAN technology stood still for the better part of three decades, this makes sense, as most companies have a WAN that’s long overdue for a refresh and architectural update — and SD-WANs make this a reality.SD-WANs are definitely moving out of the early-adopter phase and into mainstream adoption. And anytime a technology does this, the market changes. Below are the primary ways SD-WANs will change in 2019.[ Check out: 10 hot SD-WAN startups to watch | Get regularly scheduled insights: Sign up for Network World newsletters ] Less focus on cost savings The initial wave of SD-WANs was sold with the promise of slashing network costs by replacing MPLS with broadband. If a business is willing to ditch all of its MPLS, and that’s a big if, and replace it wholly with broadband, it will save money on transport. However, it will likely need to add some optimization technologies to account for the unpredictability of broadband.To read this article in full, please click here

What to expect from SD-WANs in 2019

In network circles, there may be no hotter topic right now than software-defined WAN (SD-WAN). Given WAN technology stood still for the better part of three decades, this makes sense, as most companies have a WAN that’s long overdue for a refresh and architectural update — and SD-WANs make this a reality.SD-WANs are definitely moving out of the early-adopter phase and into mainstream adoption. And anytime a technology does this, the market changes. Below are the primary ways SD-WANs will change in 2019.[ Check out: 10 hot SD-WAN startups to watch | Get regularly scheduled insights: Sign up for Network World newsletters ] Less focus on cost savings The initial wave of SD-WANs was sold with the promise of slashing network costs by replacing MPLS with broadband. If a business is willing to ditch all of its MPLS, and that’s a big if, and replace it wholly with broadband, it will save money on transport. However, it will likely need to add some optimization technologies to account for the unpredictability of broadband.To read this article in full, please click here

Visibility plays critical role in a successful SD-WAN deployment

The rise of SD-WANs has been well documented by every analyst firm that covers network technology. I have the market growing from $1.0 billion in 2017 to over $9.5 billion in 2022, indicating the market is about to go through an accelerated phase of growth. Given SD-WANs can help save money and improve network agility, it seems like a no-brainer to evolve to an SD-WAN.However, the path to an SD-WAN isn’t easy. There are a lot of factors to be considered, including the use of broadband, how to optimize the links, network architecture, and the impact of moving the on-premises infrastructure out to the cloud. If anything is missed, application performance could be severely degraded, which would negate the return on investment of the project.To read this article in full, please click here

Visibility plays critical role in a successful SD-WAN deployment

The rise of SD-WANs has been well documented by every analyst firm that covers network technology. I have the market growing from $1.0 billion in 2017 to over $9.5 billion in 2022, indicating the market is about to go through an accelerated phase of growth. Given SD-WANs can help save money and improve network agility, it seems like a no-brainer to evolve to an SD-WAN.However, the path to an SD-WAN isn’t easy. There are a lot of factors to be considered, including the use of broadband, how to optimize the links, network architecture, and the impact of moving the on-premises infrastructure out to the cloud. If anything is missed, application performance could be severely degraded, which would negate the return on investment of the project.To read this article in full, please click here

Mass data fragmentation requires a storage rethink

Companies are experiencing a growing problem of mass data fragmentation (MDF). Data is siloed and scattered all over the organization — on and off premises — and businesses are unable to use the data strategically.When data is fragmented, only a small portion of it is available to be analyzed. In my last post, I described MDF as a single trend, but it can occur in a number of ways. Below are the most common forms of MDF: Fragmentation across IT silos: Secondary IT operations such as backups, file sharing/storage, provisioning for test/development and analytics are typically being done in completely separate silos that don’t share data or resources, with no central visibility or control. This results in overprovisioning/waste, as well as a challenge to meet service-level agreements (SLAs) or availability targets.   Fragmentation within a silo: There are even "silos within silos." Example: backup, where it is not uncommon to have four to five separate backup solutions from different vendors to handle different workloads such as virtual, physical, satabase, and cloud. On top of that, each solution needs associated target storage, dedupe appliances, media servers, etc., which propagate the silo problem. Fragmentation due to copies: Continue reading

Mass data fragmentation requires a storage rethink

Companies are experiencing a growing problem of mass data fragmentation (MDF). Data is siloed and scattered all over the organization — on and off premises — and businesses are unable to use the data strategically.When data is fragmented, only a small portion of it is available to be analyzed. In my last post, I described MDF as a single trend, but it can occur in a number of ways. Below are the most common forms of MDF: Fragmentation across IT silos: Secondary IT operations such as backups, file sharing/storage, provisioning for test/development and analytics are typically being done in completely separate silos that don’t share data or resources, with no central visibility or control. This results in overprovisioning/waste, as well as a challenge to meet service-level agreements (SLAs) or availability targets.   Fragmentation within a silo: There are even "silos within silos." Example: backup, where it is not uncommon to have four to five separate backup solutions from different vendors to handle different workloads such as virtual, physical, satabase, and cloud. On top of that, each solution needs associated target storage, dedupe appliances, media servers, etc., which propagate the silo problem. Fragmentation due to copies: Continue reading

Dell EMC committed to networking, shares product and partnership plans

Dell EMC has one of the broadest networking portfolios in the industry. What’s unique about Dell EMC’s approach is that it's a mix of its own technology, as well as network partners. Also, it offers traditional hardware products and software-only products and supports white-box implementation. As an industry watcher, I’ve always been confused by the strategy of Dell EMC Networking. I know I’m not alone in this, as other network professionals I’ve talked to have echoed this sentiment.Recently, I had an opportunity to talk with Tom Burns, senior vice president and general manager of Dell EMC Networking and Solutions, about the company's networking portfolio and asked if he could clarify what is included in it.To read this article in full, please click here

Dell EMC committed to networking, shares product and partnership plans

Dell EMC has one of the broadest networking portfolios in the industry. What’s unique about Dell EMC’s approach is that it's a mix of its own technology, as well as network partners. Also, it offers traditional hardware products and software-only products and supports white-box implementation. As an industry watcher, I’ve always been confused by the strategy of Dell EMC Networking. I know I’m not alone in this, as other network professionals I’ve talked to have echoed this sentiment.Recently, I had an opportunity to talk with Tom Burns, senior vice president and general manager of Dell EMC Networking and Solutions, about the company's networking portfolio and asked if he could clarify what is included in it.To read this article in full, please click here

Securing the IoT has become business-critical

The IoT era has arrived.Here's some proof: 83% of organizations say the Internet of Things (IoT) is important to business today, and 92% say it will be in two years.That's according to a recent DigiCert survey conducted by ReRez Research of 700 organizations in five countries to better understand the IoT and IoT security.Anecdotally, I always find that markets have matured when it’s no longer an unusual thing. For example, a few years ago, it was hard to find IoT deployments that were outside of the traditional machine-to-machine industries such as manufacturing and oil and gas. Today, connected things are everywhere. Case in point: I recently interviewed the IT director at an entertainment venue and he walked me through all the connected things without ever saying “IoT.” The organization was connecting more things to improve customer experience, and it was treated as no big deal.To read this article in full, please click here

Securing the IoT has become business-critical

The IoT era has arrived.Here's some proof: 83% of organizations say the Internet of Things (IoT) is important to business today, and 92% say it will be in two years.That's according to a recent DigiCert survey conducted by ReRez Research of 700 organizations in five countries to better understand the IoT and IoT security.Anecdotally, I always find that markets have matured when it’s no longer an unusual thing. For example, a few years ago, it was hard to find IoT deployments that were outside of the traditional machine-to-machine industries such as manufacturing and oil and gas. Today, connected things are everywhere. Case in point: I recently interviewed the IT director at an entertainment venue and he walked me through all the connected things without ever saying “IoT.” The organization was connecting more things to improve customer experience, and it was treated as no big deal.To read this article in full, please click here

The network matters for public cloud performance

Most IT professionals select cloud providers based on price or proximity to users, but network performance should also be considered. Because as we see in a new report from ThousandEyes, the underlying network architecture of the big cloud providers can have a significant impact on performance. And performance varies widely among cloud service providers.In its first annual public cloud benchmark report, ThousandEyes compared the global network performance of the “big three” public cloud providers — Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure. The network management company looked at network performance (latency, packet loss, jitter) and connectivity architecture. It also measured user-to-cloud connectivity from 27 cities around the globe to 55 AWS, Azure, and GCP regions and measured the inter-AZ and inter-region connectivity within all three cloud provider networks. In addition, they measured inter-region connectivity between all 55 regions on a multi-cloud basis.To read this article in full, please click here

Which cloud performs better, AWS, Azure or Google?

Most IT professionals select cloud providers based on price or proximity to users, but network performance should also be considered. Because as we see in a new report from ThousandEyes, the underlying network architecture of the big cloud providers can have a significant impact on performance. And performance varies widely among cloud service providers.In its first annual public cloud benchmark report, ThousandEyes compared the global network performance of the “big three” public cloud providers — Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure. The network management company looked at network performance (latency, packet loss, jitter) and connectivity architecture. It also measured user-to-cloud connectivity from 27 cities around the globe to 55 AWS, Azure, and GCP regions and measured the inter-AZ and inter-region connectivity within all three cloud provider networks. In addition, they measured inter-region connectivity between all 55 regions on a multi-cloud basis.To read this article in full, please click here

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