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Category Archives for "Network World SDN"

BrandPost: The Benefits of Refreshing Router-Centric WANs with SD-WAN

The advantages of SaaS applications and other cloud services has businesses rethinking their traditional router-centric WAN strategy. That’s because many of today’s business-critical applications carry the twin challenges of needing high performance, especially for latency-sensitive applications such as unified communications, combined with high volumes of data. These requirements can quickly swamp traditional WAN connections that backhaul data and transactions through the data center. Without the ability to connect directly to the internet, application speeds slow and performance suffers.The other challenge is that routers generally only view data at the packet level, with little to no intelligent recognition or prioritization of business applications. As a result, mission-critical SaaS applications must not only compete for bandwidth with other business data, but also with non-essential traffic such as YouTube videos or Spotify streams. Without the ability to recognize, prioritize, and steer connections to business-critical SaaS applications, it’s all just data going in and out of the branch routers. The result is lowered application functionality, user experience, and business results.To read this article in full, please click here

This 11-course Microsoft & Oracle SQL certification prep bundle is only $39 today

If you’re interested in a career in data administration, you’re in luck! Nowadays, companies handle larger data sets than ever before, so the need for data experts is higher than ever. Whether you’re new to the field or you want to brush up on your database management skills, this $39 bundle is for you. The Complete Microsoft & Oracle SQL Certification Bundle features 11 courses on how to become a skilled database administrator. One of the most popular relational database management systems is Microsoft SQL Server, and you’ll learn the basics behind this tool such as modifying data and combining data sets in Microsoft 70-461: Querying SQL Server 2012. Alternatively, you can specialize in Oracle, another popular RDBMS, by completing Oracle 12c OCP 1Z0-061: SQL Fundamentals. Once you’ve completed either of these, you can pursue advanced SQL certifications to design data warehouses, design business intelligence solutions, and more. To read this article in full, please click here

IDG Contributor Network: Microsoft’s vision for the multi-cloud future

We are seeing it from all sides now. From the usual suspects in OEM to HCI to virtualization to public cloud, everyone is out to address the growing demand to shift legacy IT workloads to agile, cloud native, consumption-based, hybrid-friendly, modernized IT environments. A mouthful perhaps, but that doesn’t make it any less true. We have entered a multi-cloud world, and the competition is going to be abundant.The question that’s top of mind for many is which company or companies will emerge as the market leader. This week at Ignite, Microsoft’s annual customer conference, the company made a number of announcements around its Azure Cloud. Based on those announcements and the company’s existing platform of services, I wanted to break down how I see Microsoft’s Azure strategy evolving and share what business and IT leaders need to be thinking about when they are looking at modernizing their IT to support the growing multi-cloud initiative.To read this article in full, please click here

HPE boosts storage, hyperconvergence products with AI

Two announcements from Hewlett Packard Enterprise highlight the potential for artificial intelligence to make systems more autonomous and adaptable to changing workload demands.HPE has beefed up its SimpliVity hyperconverged infrastructure (HCI) platform and its Primera storage system to include AI capabilities and composability features from HPE Synergy and HPE Composable Rack. Read more: Making the right hyperconvergence choice: HCI hardware or software?To read this article in full, please click here

This $387 Azure certification prep bundle is currently on sale for $29

Modern tech companies require more computing power than ever before, so many of them are turning to cloud services like Microsoft Azure to meet their needs. As such, becoming cloud-certified is a necessity if you want to pursue today’s highest-paying IT jobs. With this 4-course bundle, you can become an Azure master for just $29. To read this article in full, please click here

29 top cloud certifications

When it comes to the most in-demand skills, the cloud is the place to be. Our guide to top cloud certifications looks at programs designed for AWS, Google and Microsoft services -- as well as vendor-neutral certifications.

Cisco Meraki ups security with new switch, software

Cisco Meraki has introduced new hardware and software the company says will help customers more effectively support and secure a wide variety of distributed network resources.The new products, which include a raft of new security features as well a new class of switches and a cellular gateway will help Meraki address customers who perhaps don’t have the IT expertise nor staffing to support the increasing number of devices that need to be managed, said Lawrence Huang, vice president of product management at Cisco Meraki.Network pros react to new Cisco certification curriculum “Threat vectors are evolving and the way customers need to protect themselves need to evolve as well – how customers support applications and IoT devices exemplify the idea its not just one perimeter that needs protecting but a collection of micorperimenters,” Huang said.To read this article in full, please click here

VMware amps security with in-house, Carbon Black technology

VMware is moving quickly to meld its recently purchased Carbon Black technology across its product lines with an eye toward helping users protect their distributed enterprises.VMware just closed the $2.1 billion buy of cloud-native endpoint-security vendor Carbon Black in October and in the process created a new security business unit that will target cybersecurity and analytics to protect networked enterprise resources. More about edge networkingTo read this article in full, please click here

Prepare for the CompTIA certification exams with this $69 training bundle

No modern tech company can operate without a capable IT department, and as new companies launch each year, the demand for IT professionals will continue to grow. However, IT professionals must earn their certifications first, and CompTIA certifications are among the most versatile because they’re vendor-neutral. If you’re interested in earning a CompTIA certification, you can prepare with this $69 training bundle.To read this article in full, please click here

Red Hat announces RHEL 8.1 with predictable release cadence

Red Hat has just today announced the availability of Red Hat Enterprise Linux (RHEL) 8.1, promising improvements in manageability, security and performance.RHEL 8.1 will enhance the company’s open hybrid-cloud portfolio and continue to provide a consistent user experience between on-premises and public-cloud deployments.[Get regularly scheduled insights by signing up for Network World newsletters.] RHEL 8.1 is also the first release that will follow what Red Hat is calling its "predictable release cadence". Announced at Red Hat Summit 2019, this means that minor releases will be available every six months. The expectation is that this rhythmic release cycle will make it easier both for customer organizations and other software providers to plan their upgrades.To read this article in full, please click here

IDG Contributor Network: AI and 5G: Entering a new world of data

Today the telecom industry has identified the need for faster end-user-data rates. Previously users were happy to call and text each other. However, now mobile communication has converted our lives in such a dramatic way it is hard to imagine this type of communication anymore.Nowadays, we are leaning more towards imaging and VR/AR video-based communication. Therefore, considering such needs, these applications are looking for a new type of network. Immersive experiences with 360° video applications require a lot of data and a zero-lag network.To give you a quick idea, VR with a resolution equivalent to 4K TV resolution would require a bandwidth of 1Gbps for a smooth play or 2.5 Gbps for interactive; both requiring a minimal latency of 10ms and minimal delay. And that's for round-trip time. Soon these applications will target the smartphone, putting additional strains on networks. As AR/VR services grow in popularity, the proposed 5G networks will yield the speed and the needed performance.To read this article in full, please click here

Cisco forges tighter SD-WAN links to Microsoft Azure cloud, Office 365

Cisco and Microsoft this week extended their relationship to make it easier and more efficient for SD-WAN customers to set up and run direct Internet access to enterprise applications such as Office 365 and other Azure Cloud services.Specifically Cisco said it would integrate its SD-WAN package with Microsoft’s Azure Virtual WAN and Office365.  This amalgamation will let customers extend their WAN to Microsoft Azure Cloud and, in parallel, deliver optimized, secure Office 365 communications, according to Sachin Gupta, senior vice president, product management with Cisco’s Enterprise Networking Business.   To read this article in full, please click here

Forrester: Edge computing is about to bloom

The next calendar year will be the one that propels edge computing into the enterprise technology limelight for good, according to a set of predictions from Forrester Research.While edge computing is primarily an IoT-related phenomenon, Forrester said that addressing the need for on-demand compute and real-time app engagements will also play a role in driving the growth of edge computing in 2020.[Get regularly scheduled insights by signing up for Network World newsletters.] What it all boils down to, in some ways, is that form factors will shift sharply away from traditional rack, blade or tower servers in the coming year, depending on where the edge technology is deployed. An autonomous car, for example, won’t be able to run a traditionally constructed server.To read this article in full, please click here

This 12-course bundle will teach you how to be an ethical hacker for $39

It seems like there’s a new data breach every month, and as hackers ramp up their efforts to steal our private info, it’s only natural to feel afraid. What can you do to fight back? Oddly enough, the best way to prevent cybersecurity attacks is by fighting fire with fire. As an ethical hacker, you can make a living by exploiting cybersecurity vulnerabilities, and this $39 bundle will show you how.To read this article in full, please click here

Looping your way through bash

There are a lot of options for looping in bash whether on the command line or in a script. The choice depends on what you're trying to do.You may want to loop indefinitely or quickly run through the days of the week. You might want to loop once for every file in a directory or for every account on a server. You might want to loop through every line in a file or have the number of loops be a choice when the script is run. Let's check out some of the options.[Get regularly scheduled insights by signing up for Network World newsletters.] Simple loops Probably the simplest loop is a for loop like the one below. It loops as many times as there are pieces of text on the line. We could as easily loop through the words cats are smart as the numbers 1, 2, 3 and 4.To read this article in full, please click here

Juniper set to reinforce core edge networking, cloud technologies

There is a fundamental, but perhaps a logical evolution in the way networks are being built to handle hybrid cloud applications – resources are moving closer to the edge; data centers are becoming more distributed and cloud hyperscalers are building bigger backbones to handle that traffic.That is the  overarching networking landscape laid out by  Juniper’s CTO Bikash Koley in an interview this week ahead of the company’s NXTWORK 2019 customer event next month. To read this article in full, please click here

Watson IoT chief: AI can broaden IoT services

IBM thrives on the complicated, asset-intensive part of the enterprise IoT market, according to Kareem Yusuf, GM of the company’s Watson IoT business unit. From helping seaports manage shipping traffic to keeping technical knowledge flowing within an organization, Yusuf said that the idea is to teach artificial intelligence to provide insights from the reams of data generated by such complex systems.Predictive maintenance is probably the headliner in terms of use cases around asset-intensive IoT, and Yusuf said that it’s a much more complicated task than many people might think. It isn’t simply a matter of monitoring, say, pressure levels in a pipe somewhere and throwing an alert when they move outside of norms. It’s about aggregate information on failure rates and asset planning, that a company can have replacements and contingency plans ready for potential failures.To read this article in full, please click here

Viewing network bandwidth usage with bmon

Bmon is a monitoring and debugging tool that runs in a terminal window and captures network statistics, offering options on how and how much data will be displayed and displayed in a form that is easy to understand.To check if bmon is installed on your system, use the which command:$ which bmon /usr/bin/bmon [Get regularly scheduled insights by signing up for Network World newsletters.] Getting bmon On Debian systems, use sudo apt-get install bmon to install the tool.To read this article in full, please click here

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