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Category Archives for "Network World SDN"

Johnsonville Sausage cuts MPLS costs with SD-WAN

About a year ago it was becoming clear to Johnsonville Sausage’s IT department that it had to modernize its wide area network to get costs down and simplify the overall enterprise network environment to effectively move the business forward. The company embarked on a two-pronged path that moved its US and global business and industrial networks toward a software-defined WAN (SD-WAN) environment -- eliminating costly MPLS links -- and a more automated, controlled system that has restored quality of life back to IT, said  Johnsonville Sausage Global Network Operations Manager Anthony Wild.To read this article in full, please click here

BrandPost: WAN Transformation – Security First or Network First?

It’s an exciting time in Wide Area Networking. With the rapid adoption of software-defined wide area networking (SD-WAN) architectures, we’re experiencing the biggest transformation in the WAN since the introduction of MPLS back in the late 90s.As with all new technologies, there is a lot of hype and a stampede of companies looking to capitalize on a hot new category. At last count, there were about 70 companies with marketing messages all vying to hop on the five letter “S-D-W-A-N” bandwagon.Interestingly, in the newly Gartner 2019 Magic Quadrant for WAN Edge Infrastructure, there are only two companies positioned as Leaders, Silver Peak and VMware. Seventeen others are positioned across the Niche, Visionary and Challenger quadrants. Ten additional companies are listed but didn’t meet the qualification criteria for inclusion in the Magic Quadrant.To read this article in full, please click here

Generating numeric sequences with the Linux seq command

One of the easiest ways to generate a list of numbers in Linux is to use the seq (sequence) command. In its simplest form, seq will take a single number and then list all the numbers from 1 to that number. For example:$ seq 5 1 2 3 4 5 Unless directed otherwise, seq always starts with 1. You can start a sequence with a different number by inserting it before the final number.$ seq 3 5 3 4 5 Specifying an increment You can also specify an increment. Say you want to list multiples of 3. Specify your starting point (first 3 in this example), increment (second 3) and end point (18).To read this article in full, please click here

Researchers aim for transistors that compute and store in one component

Researchers at Purdue University have made progress towards an elusive goal: building a transistor that can both process and store information. In the future, a single on-chip component could integrate the processing functions of transistors with the storage capabilities of ferroelectric RAM, potentially creating a process-memory combo that enables faster computing and is just atoms thick.The ability to cram more functions onto a chip, allowing for greater speed and power without increasing the footprint, is a core goal of electronics design. To get where they are today, engineers at Purdue had to overcome incompatibilities between transistors – the switching and amplification mechanisms used in almost all electronics – and ferroelectric RAM. Ferroelectric RAM is higher-performing memory technology; the material introduces non-volatility, which means it retains information when power is lost, unlike traditional dielectric-layer-constructed DRAM.To read this article in full, please click here

Wi-Fi 6 is slowly gathering steam

The next big wave of Wi-Fi technology, 802.11ax, is going to become more commonplace in enterprise installations over the course of the coming year, just as the marketing teams for the makers of Wi-Fi equivalent will have you believe. Yet the rosiest predictions of revolutionary change in what enterprise Wi-Fi is capable of are still a bit farther off than 2020, according to industry experts.To read this article in full, please click here(Insider Story)

Industrial Internet Consortium teams up with blockchain-focused security group

The Industrial Internet Consortium and the Trusted IoT Alliance announced today that they would merge memberships, in an effort to drive more collaborative approaches to industrial IoT and help create more market-ready products.The Trusted IoT Alliance will now operate under the aegis of the IIC, a long-standing umbrella group for vendors operating in the IIoT market. The idea is to help create more standardized approaches to common use cases in IIoT, enabling companies to get solutions to market more quickly.[Get regularly scheduled insights by signing up for Network World newsletters.] “This consolidation will strengthen the ability of the IIC to provide guidance and advance best practices on the uses of distributed-ledger technology across industries, and boost the commercialization of these products and services,” said 451 Research senior blockchain and DLT analyst Csilla Zsigri in a statement.To read this article in full, please click here

BrandPost: Rethink Data Centers with Data @ the Center

Mention the data center and, to most, images of machine rooms filled to the brim with equipment and the sounds of IT whirring away are what come to mind. For decades, businesses have equipped data centers with silo upon silo of servers, applications, networking, and storage in their insatiable quest to deliver business insight to line-of-business (LOB) leaders, their management, and the C-suite. Even the name data center was given based on the theory that most business-critical data would be found there, centralized, and ready for the business to derive competitive insights to bolster its marketplace advantage.However, the data center, as we have traditionally known it, often falls short in its mission to deliver business advantage. The premise is sound, but the execution has been limited by the technology at hand. For many, the problem is the data center is not a centralized repository of data; rather it is a centralized collection of applications, each with its dedicated compute and storage resources (physical or virtual, it doesn’t matter), surrounded by edge computing facilities driven by LOB concerns.To read this article in full, please click here

Do containers need backup?

Containers are breaking backups around the world, but there are steps you can take to make sure that the most critical parts of your container infrastructure are protected against the worst things that can happen to your data center.At first glance it may seem that containers don’t need to be backed up, but on closer inspection, it does make sense in order to protect against catastrophic events and for other, less disastrous eventualities.[Get regularly scheduled insights by signing up for Network World newsletters.] Container basics Containers are another type of virtualization, and Docker is the most popular container platform. Containers are a specialized environment in which you can run a particular application. One way to think of them is like lightweight virtual machines. Where each VM in a hypervisor server contains an entire copy of an operating system, containers share the underlying operating system, and each of them contains only the required libraries needed by the application that will run in that container. As a result, many containers on a single node (a physical or virtual machine running an OS and the container runtime environment) take up far fewer resources than the same number of VMs.To Continue reading

5 questions to answer before deploying Wi-Fi 6

The Wi-FI 6 standard (802.11ax) is bringing many exciting improvements to Wi-Fi that make it an enticing option. These include speed, in the form of real-world multi-gigabit wireless connections, but also support for high-density networks like those in stadiums. However, it will take some careful thought and planning to know when to take the leap to Wi-Fi 6.To read this article in full, please click here(Insider Story)

Data center operators not keen on green: survey

Most data center operators are not prioritizing power and other "green" issues. While enterprises are making incremental improvements toward energy-efficient initiatives, they're advancing at a very slow rate, according to new research data.Supermicro surveyed more than 5,000 IT professionals for its Data Centers and the Environment report. One of the goals of the annual report is to help IT leaders to lessen the long-term environmental impact of their data center equipment purchases.Those surveyed said total cost of ownership (TCO) and return on investment (ROI) are their primary measures of success. Less than 15% said that energy efficiency, corporate social responsibility, and environmental impact are key considerations for their facilities. At the same time, 22% of respondents noted that environmental considerations are too expensive to be considered a priority.To read this article in full, please click here

IDG Contributor Network: SD-WAN management means more than reviewing logs and parsing events

By creating a single view of all network data, you can do things better like correlating threat information to identify real attacks or keep a log of packet statistics to better diagnose intermittent networking problems.However, to turn data into value with the limitations of traditional systems, we must be creative with the solution. We must find ways to integrate the different repositories in various appliances. It’s not an easy task but an architectural shift that I’ve written about in the past, SASE (Secure Access Service Edge), should help significantly.SASE is a new enterprise networking technology category introduced by Gartner in 2019. It represents a change in how we connect our sites, users, and cloud resources.To read this article in full, please click here

BrandPost: Customers Demonstrate the Benefits of Secure SD-WAN Across Industries

Given today’s expanding networks, largely being driven by cloud transformation and similar digital transformation efforts, keeping everything connected in a single, easily manageable environment is a critical challenge. Extending things like cloud services to your mobile workers and branch offices will inevitably impact your network’s performance – especially if you are still trying to route traffic through your central network using things like WAN routers and MPLS connections in a hub and spoke design. Routing cloud-based applications through a WAN link to the central network can severely impact productivity and user experience while creating continually increasing bandwidth loads.To read this article in full, please click here

7 considerations when buying network-automation tools

The concept of network automation has been around for as long as there have been networks, and until now the uptake has been slow for a number of reasons including resistance from network engineers.  But now forces are coming together to create a perfect storm of sorts, driving a need for network automation tools.One factor is that more and more network teams are starting to feel the pain of working in the fast-paced digital world where doing things the old way simply does not work.  The manual, box-by-box, method of configuring and updating routers and switches through a command-line interface (CLI) is too slow and error prone. [Get regularly scheduled insights by signing up for Network World newsletters.] Also, the rise of software-defined networks (SDN), including software-defined WANs (SD-WAN), has enabled network-automation tools to evolve from operationally focused point products that address things like change management and configuration into policy and orchestration tools.To read this article in full, please click here

Space-data-as-a-service prepares to take off

Upcoming space commercialization will require hardened edge-computing environments in a small footprint with robust links back to Earth, says vendor OrbitsEdge, which recently announced that it had started collaborating with Hewlett Packard Enterprise on computing-in-orbit solutions.OrbitsEdge says it’s the first to provide a commercial data-center environment for installing in orbit, and will be using HPE’s Edgeline Converged Edge System in a hardened, satellite micro-data-center platform that it’s selling called SatFrame.To read this article in full, please click here

Liquid cooling and edge computing are featured at Gartner show

Research firm Gartner is holding its IT Infrastructure, Operations, and Cloud Strategies Conference (IOCS) in Las Vegas this week, and a few news announcements from the show give an indication as to where data-center technology is headed.First up, Schneider Electric and Iceotope formally introduced their integrated rack with chassis-based immersive liquid-cooling designs. The deal was announced in October but now the details are out. In addition to Schneider and Iceotope, the alliance also includes Avnet, an electronic-component distributor.To read this article in full, please click here

7 ways to remember Linux commands

Some Linux commands are very easy to remember. The names may have only a couple letters and they often relate directly to what you want to do – like cd for changing directories or pwd for displaying the present working directory. Others can be very difficult to remember, especially if what you want to do relies on using a series of options.So, let’s look at some commands and tricks that can help you remember commands that do just what you need them to do and that make issuing those commands so much easier.Use aliases The best way to nail down a complicated command is to turn it into an alias. Just take a command that works for you and assign it an easy name. In fact, there is nothing wrong with using the name of the command itself as the alias as long as this doesn’t interfere with other ways you might want to use that command. For example, grep and egrep are often aliased to include using color to highlight your search term.To read this article in full, please click here

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