Category Archives for "Network World SDN"

IDG Contributor Network: The future of IoT device management

The Internet of Things (IoT) continues to expand its reach into homes, businesses, social settings, and other environments, as more and more devices are connected with the purpose of gathering and sharing data.Clearly, there are several potential benefits of IoT from a consumer standpoint. Apart from the convenience aspect, smart connected products can lead to increased energy efficiency, improved safety and security, higher product quality, etc.But unfortunately, the current consumer IoT device landscape is still immature. For consumer IoT devices to thrive, device management capabilities need to evolve in a few ways.IoT device management is the process of authenticating, provisioning, configuring, monitoring and maintaining the device firmware and software that provides its functional capabilities. Effective device management is critical to establishing and maintaining the health, connectivity, and security of IoT devices. IoT application vendors typically provide comprehensive device management with their solutions. But all bets are off if that application vendor goes out of business and you would like to use your devices with a similar application from a different vendor. Consumers are increasingly faced with unexpected device obsolescence and landfills are starting to fill up with expensive IoT bricks. What consumer IoT needs is a truly Continue reading

What is 802.11ax Wi-Fi, and what will it mean for 802.11ac

Each new Wi-Fi standard has brought significant improvements in performance, with the most recent, 802.11ac, offering an impressive theoretical maximum rate of 1.3Gbps.  Unfortunately, these gains have not been enough to keep pace with demand, leading to that exasperated cry heard across airports, malls, hotels, stadiums, homes and offices: “Why is the wireless so slow?”The IEEE is taking another crack at boosting Wi-Fi performance with a new standard called 802.11ax or High-Efficiency Wireless, which promises a fourfold increase in average throughput per user.RELATED: Can MU-MIMO really boost wireless capacity? 802.11: Wi-Fi standards and speeds explained Wi-Fi 2018: What does the future look like? 802.11ax is designed specifically for high-density public environments, like trains, stadiums and airports. But it also will be beneficial in Internet of Things (IoT) deployments, in heavy-usage homes, in apartment buildings and in offices that use bandwidth-hogging applications like videoconferencing.To read this article in full, please click here

BrandPost: Delivering “Always-On” Technology to Meet the Demands of Today’s Business

Virtually every small and medium-sized business is now driven by digital technologies. From our phones and PCs to the critical business applications that form the basis of business operations, our workday has become dependent on devices and the systems they are connected to. In addition to supporting employees, our customers and partners are constantly interacting with our systems. Outages are unacceptable. If our systems go down, business stops. This impacts employees, partners, and customers. And it’s not just an inconvenience; it costs the business money.Unfortunately, many businesses with 100-1,000 employees are using legacy server rooms or data centers that were built in the days before “always-on” became the requirement. A decade ago, downtime was hidden from customers and partners, and employees could work around a problem, staying somewhat productive. That’s no longer the case. Downtime is a disaster. And in many cases, downtime can result in lost data and corrupt systems, making the cost of recovery even greater. In some industries, data lost during an outage also creates a “compliance event,” which is never “career enhancing” for an IT professional.To read this article in full, please click here

Startup Concertio offers AI-optimized server configuration

For about as long as there has been personal computers, there has been an aftermarket of system optimization software. Even MS-DOS, which was about as basic as an operating system gets, had QEMM to get the most out of your 640K of memory. These days, there is a healthy market of Windows optimization utilities to speed up your PC.For servers, though, it gets a little more complicated. Actually, it gets very complicated. Not only does each server have to operate at peak efficiency on its own, but it then has to interact with the network, with other servers, and potentially with a public cloud service provider.Also on Network World: What will AI mean to the traditional data center? And usage models change over time. There might be peak use times when certain processes are not run, such as backups, and slow times of day when other tasks can be run. So an optimal configuration at one point in the day is not optimal at a different time of the day.To read this article in full, please click here

IDG Contributor Network: What does SD-Branch mean for security, storage and IoT?

We’ve started to hear a lot about SD-Branch as a natural successor to SD-WAN, which makes sense as the centrally-orchestrated model is attractive to many enterprises. However, just as we saw with SD-WAN, the term “SD-Branch” is being adopted by many different vendors and service providers to mean what they want, in the absence of any “official” definition.What is SD-Branch anyway? Based on most definitions, SD-Branch means delivering more IT infrastructure to branches under a programmable, centrally orchestrated model. Think of it as “SD-WAN plus” – just as you can create templates or profiles in an SD-WAN network, an entire branch template could be generated that defines how the LAN is configured, what wireless LANs are used, how they integrate with the WAN, and what additional compute-based services need to be deployed at the branch.To read this article in full, please click here

Getting the most out of your next generation firewall

Are you getting the most out of your next generation firewall? Probably not if you take to heart recent research from SafeBreach.SafeBreach, a relative newcomer to the security arena -- it was founded in 2014 -- sells premise and service packages that continually run network breach simulations that help customers locate and remediate security problems.RELATED: What is microsegmentation? How getting granular improves network security Illumio extends its segmentation to the network and cloud Specifically the company deploys software probes distributed throughout customers’ networks, and attempts to establish connections among devices and network segments just as a hacker would do in attacking your data.  These breach attempts are defined by SafeBreach’s Hacker’s Playbook, a library of known attack methods that uncover network security weaknesses and how these vulnerabilities might be exploited.To read this article in full, please click here

7 transportation IoT predictions from Cisco

Cisco is one of the biggest proponents — and potential beneficiaries — of the Internet of Things (IoT). The networking giant is pushing IoT solutions in a number of areas, not least of which is the transporation sector.To learn more about how the company sees the future of IoT playing out in the world of connected transporation, I spoke (via email) with Kyle Connor, Cisco’s transportation industry principal.Connor covered a lot of ground, but here are what I consider his seven most important points, along with my reactions to them:To read this article in full, please click here

IDG Contributor Network: The massive role of tiny antennas

The Shannon-Hartley theorem expresses “the maximum rate at which information can be transmitted over a communications channel of a specified bandwidth in the presence of noise.”Translation: wireless data can only travel so fast. But if data rates are finite, how can we support the rollout of Gigabit LTE, and one billion new 5G connections by 2025?Over the next few years, wireless connections will become ubiquitous – not only in our phones, tablets and PCs – but in our home, car and cities, thanks to an unglamorous and often-forgotten RF enabler: the antenna. Far from the laughably chunky antennas of early mobile phones, today’s nearly-invisible antenna systems make high-speed networking possible. They’re evolving as new wireless technologies emerge to satisfy our demand for content on the move.To read this article in full, please click here

IDG Contributor Network: Why is tape declining in the backup world?

The numbers don’t look good My favorite source of numbers for the tape industry used to be the Santa Clara Consulting Group.  They’d been tracking the use of tape in the backup and recovery industry since 2008 and had been a great go-to for such data. They showed a steady decline in number of units shipped, both in terms of drives and media.  Unfortunately, it looks like they stopped doing these services in 2014.Gartner’s most recent report on what media types people are using to do their backups is a pretty solid source of data, though. They’ve got data going back to 2009 that shows the percentage of people that are backing up directly to tape (D2T), backing up to disk then copying to tape (D2D2T), backing up to disk with no tape component (D2D/D2D2D), or backing up to the cloud (D2C/D2D2C).  While tape is used in most datacenters in one way or another, the percentage of companies using tape in any way is steadily declining. Companies are clearly moving to D2D or D2C techniques.  What are the reasons behind this trend?To read this article in full, please click here

IDG Contributor Network: It’s time to start thinking differently about IoT

A steady churn of stunningly useless consumer devices has turned IoT into a running joke in the tech community. Worse yet, some applications have gone beyond the silly and into the realm of scary – like internet-connected teddy bears that record your kids (and skimp on security). But there’s a whole other side to IoT. Far removed from the world of consumer gadgetry, IoT is being used behind the scenes to solve real problems and create real value across a wide variety of applications and industries.To read this article in full, please click here

What is a SAN and how does it differ from NAS?

A storage area network (SAN) is a dedicated, high-speed network that provides access to block-level storage. SANs were adopted to improve application availability and performance by segregating storage traffic from the rest of the LAN. SANs enable enterprises to more easily allocate and manage storage resources, achieving better efficiency. “Instead of having isolated storage capacities across different servers, you can share a pool of capacity across a bunch of different workloads and carve it up as you need. It’s easier to protect, it’s easier to manage,” says Scott Sinclair, senior analyst with Enterprise Strategy Group.To read this article in full, please click here

IDG Contributor Network: Emerging blockchain-based distribution storage market and its effect on cloud computing

The blockchain industry, historically tied directly to cryptocurrency, has made a right turn in recent months. It has extended its legion of users to offer distributed storage. This threatens to undercut the pricing market established by cloud computing storage giants like AWS and Dropbox.How it works Blockchain-based distribution storage is centered around the idea that there are large amounts of unused storage space on the hard drives of people all over the world. Using cryptocurrency as an incentive, blockchain distribution companies monetize that storage space for their members. It is an upgraded version of what BitTorrent was in the early 2000s, using peer-to-peer (P2P) networks to form an aggregate of computer resources. But with cryptocurrencies built in to blockchains as a method of payment, users have a monetary incentive to offer up their unused data space to consumers.  Because of its extreme distribution of data - known as sharding - blockchain-based storage has the potential to be more secure than cloud-based storage. And by using the in-place hardware maintained by others, it can drastically cut the cost for the end-user.    To read this article in full, please click here

IoT: Sensor-as-a-service, run by blockchain, is coming

Telecommunications equipment maker Nokia has launched a turnkey, sensor-as-a-service offering for Internet of Things (IoT) networks.The idea behind the product is to provide a way for mobile network operators (MNOs), many of which use Nokia cell site equipment, to monetize existing infrastructure, such as towers, by selling live environmental sensor data to cities and others.Read also: When IoT met blockchain | Sign up: Receive daily tech news updates MNOs increasingly are looking for new revenue sources as consumer smartphone growth plateaus. And cities need to adopt digital strategies to manage assets, increase efficiencies, and keep stakeholders happy. For example, they need granular real-time data about public transportation flow and air quality to ensure they comply with regulations—that the traffic is flowing and no illegal garbage is burning.To read this article in full, please click here

Micron sets its sights on quad-cell storage

Micron is the latest NAND flash memory maker to announce plans for quadruple-level cell (QLC) flash memory, following similar announcements from Toshiba and Western Digital. It's a very technical story with a very real impact.NAND flash memory stores data in one bit per cell, with billions of cells in the flash memory chips. For flash drives to gain capacity, there are two solutions: increase the number of chips in the drive, which has physical limitations, and increase the density per cell, which is limited by the laws of physics.Also read: Impact of Intel and Micron ending their NAND partnership is negligible | Sign up: Receive daily tech news updates The first single-level cell, with one bit per cell, first emerged in the late 1980s when flash drives first appeared for mainframes. In the late 1990s came multi-level cell (MLC) drives capable of storing two bits per cell. Triple-level cell (TLC) didn't come out until 2013 when Samsung introduced its 840 series of SSDs. So, these advances take a long time, although they are being sped up by a massive increase in R&D dollars in recent years.To read this article in full, please click here

Is the IoT backlash finally here?

As pretty much everyone knows, the Internet of Things (IoT) hype has been going strong for a few years now. I’ve done my part, no doubt, covering the technology extensively for the past 9 months. As vendors and users all scramble to cash in, it often seems like nothing can stop the rise IoT.Maybe not, but there have been rumblings of a backlash to the rise of IoT for several years. Consumer and experts worry that the IoT may not easily fulfill its heavily hyped promise, or that it will turn out to be more cumbersome than anticipated, allow serious security issues, and compromise our privacy.To read this article in full, please click here

IDG Contributor Network: AI, machine learning and your access network

Artificial intelligence (AI) and machine learning are two of the latest networking buzzwords being thrown around the industry. The problem is many enterprise network managers remain confused about the real value of these vastly useful technologies.Emerging network analytics services, powered by AI and machine learning promise to transform traditional infrastructure management models by simplifying operations, lowering costs, and giving unprecedented insights into the user experience – improving the productivity of both IT professionals and their users.For network staff, the concept and value of these technologies is extremely powerful if applied to the right problems.To read this article in full, please click here

IDG Contributor Network: Data center migration in 7 steps

When it comes to cloud migration, what kind of adopter are you? Did you jump on the cloud bandwagon early? Are you lagging behind, without having tried to virtualize anything yet? Or are you in the mainstream, with a mix of clouds and some systems on premises?In our cloud migration practice, we have found that each of these groups faces its own challenges. Early adopters are often unable to support their ambitious deployments, having discovered the limits of first-generation cloud systems. Laggards may realize the need to transform, but find themselves blocked by costs, resources and time. Most enterprises are in the mainstream. They have cobbled together a hybrid IT environment, but struggle with managing it all and moving forward.To read this article in full, please click here

Linux command history: Choosing what to remember and how

Linux history — the record of commands that you’ve used on the command line — can simplify repeating commands and provide some very useful information when you’re trying to track down how recent system or account changes might have come about.Two things you need to understand before you begin your sleuthing, however, are that the shell’s command memory can be selective and that dates and times for when commands were run are optional.Basic Linux history Let’s first look at how dates and times are recorded when commands are entered on the command line. By default, they are not. The history command simply provides a list of previously used commands. That’s all that is saved in the history file. For bash users, this information all gets stuffed into the .bash_history file; for other shells, it might be just .history.To read this article in full, please click here

Juniper Networks expands multi-cloud connectivity portfolio

Juniper Networks has announced an expanded portfolio of products for companies to become “multi-cloud ready,” unifying both the public cloud and on-premises computing resources.The new offerings don’t just connect the data center to the cloud; they also cover campus and branch offices, the latter of which can often be overlooked or forgotten due to being remote.Also on Network World: Cloud strategy: hybrid and multi cloud are not the same Companies are moving more workloads to the cloud to keep up for a variety of reasons, but a recent study from consulting giant PwC and commissioned by Juniper found that while a majority of enterprise workloads are going to move to the cloud in the next three years, the workload on premises will not diminish. If anything, it will need to keep up with the cloud.To read this article in full, please click here

Get a 299-Piece All-Purpose First Aid Kit For $12 Today

This full-fledged, easy-to-tote first aid softpack is designed to save time and frustration in the midst of an emergency. It's compact and portable, but contains 299 physician-recommended supplies.  Among the items neatly organized inside the zippered kit is a first aid guide, vinyl gloves, bandages, cold compress, gauze pads, trauma pad, cotton-tipped applicators, first aid tape roll, antiseptics and all three common OTC pain medications. The kit is currently a #1 best seller on Amazon, averages 4.6 out of 5 stars from over 2,230 customers, and its typical list price of has been reduced to just a hair over $12. Click over to Amazon to see this deal.To read this article in full, please click here