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Category Archives for "Network World Wireless"

Data-center requirements should drive network architecture

If you like survey data, here’s an interesting fact for you. Every year since 2000, when I started surveying enterprises on the question, the most important factor driving investment and change in enterprise networks was the data center. It’s like the network is the tail of a big, fuzzy, maybe-largely-invisible dog, and it’s time we look at where that dog might be leading us.Today’s virtual private networks (VPNs) evolved from the days when companies leased time-division-multiplexed (TDM) lines and connected their own routers. That approach focused companies on how to network sites, and they now think about networking people instead. But people are half the story; the other half is what the people are doing, which is accessing (increasingly via the cloud) data-center applications and databases.To read this article in full, please click here

Using the zip and zipcloak commands on Linux

Both the Linux zip and zipcloak commands can create encrypted zip files, but they have some important and interesting differences. Here’s what you need to know about how they work and what you should understand when using them.zip The zip command provides an easy way to take a group of files and squeeze their content into a single smaller file. To join a group of files into a single file—often done to make copying them to other systems considerably easier—use a command like the one shown below. The first argument is the name to be used for the zip file and is followed by the list of files to be included.To read this article in full, please click here

UK competition agency launches inquiry into Broadcom’s $61B VMware buy

The UK’s Competition and Market’s Authority (CMA) has announced it is investigating Broadcom’s proposed acquisition of VMware to determine whether the deal would raise problems for competition.Semiconductor manufacturer and infrastructure software giant Broadcom first announced its intention to acquire VMware in May, in a deal worth $61 billion in stock and cash. However, not everyone is happy with the proposed deal, with senior analyst for Forrester, Tracy Woo, noting back in September that Broadcom had a poor track record when it came to previous acquisitions.To read this article in full, please click here

BrandPost: Taking the Pulse of Data Center Automation

By: Arun Gandhi, Senior Manager of Product Marketing at Juniper NetworksWhen you’re trying to convince companies to modernize, it can seem like you’re shouting into the void. Sure, they understand that what you’re advocating is important, but knowing you should do something and actually doing it are two different things.This has been the story around data center network automation for the last several years.We all know that data centers have become more complex and critical to most businesses. So, finding a way to enable more agile and efficient operations should be on every company’s to-do list. Yet, even with organizations that could benefit most from automation — communication service providers (CSPs) and enterprises managing large, distributed data centers — actual implementation has been slow. Fortunately, we seem to be turning a corner.To read this article in full, please click here

Mastering Active Directory groups can streamline management, pave way for automation

On the surface, Active Directory groups are a simple and straightforward way to manage identities (users and/or computers) and assign permissions. Users or computers are added as group members, and the group is referenced in access control lists (ACL) on file shares, mailboxes, applications, or other corporate resources. But experienced admins know that this simplicity quickly goes out the window as environments scale. As group memberships grow, management of memberships becomes increasingly complex.Over the years, Microsoft and others have developed best practices for managing groups and permissions in an Active Directory environment. These strategies are something of a lost art, but there’s value to be gained by leveraging these layers of sophistication.To read this article in full, please click here

Cisco announces $600M restructuring plan, including layoffs

Cisco today said it will take a $600 million charge associated with layoffs and restructuring of its businesses. In an 8-K filing for its fiscal first-quarter, the company announced a restructuring plan “in order to rebalance the organization and enable further investment in key priority areas. This rebalancing will include talent movement options and restructuring.” The company said it will make some real estate changes as well.During a financial call with analysts, CEO Chuck Robbins talked briefly about the restructuring but said employees will hear more details on Thursday.To read this article in full, please click here

Palo Alto targets zero-day threats with new firewall software

Palo Alto Networks has released next-generation firewall (NGFW) software that includes some 50 new features aimed at helping enterprise organizations battle zero-day threats and advanced malware attacks.The new features are built into the latest version of Palo Alto's firewall operating system – PAN 11.0 Nova – and include upgraded malware sandboxing for the company’s WildFire malware-analysis service, advanced threat prevention (ATP), and a new cloud access security broker (CASB).WildFire is Palo Alto’s on-prem or cloud-based malware sandbox that is closely integrated with Palo Alto’s firewalls. When a firewall detects anomalies, it sends data to WildFire for analysis. WildFire uses machine learning, static analysis, and other analytics to discover threats, malware and zero-day threats, according to the vendor.To read this article in full, please click here

Networking for remote work puts the emphasis on people, not sites

Many companies had to support work-from-home (WFH) during COVID, and most looked forward to having their staff back in the office. Most now tell me that some or all of the staff isn’t coming back, and that remote work is a given for at least some positions, likely for a very long time. That’s opened major questions about how these now-forever-roaming workers are connected to information resources and to each other.Didn’t we solve this already, with Zoom and Teams? Sort of. Collaborative video applications provide a reasonable substitute for meetings, but you still have the challenge of application access and information delivery. A bit over 80% of enterprises I’ve talked with say they need to make a remote worker look like they’re at their desk, and they need to be able to work as though they were as well.To read this article in full, please click here

Cisco study: Network teams look to SDN, automation to manage multicloud operations

Networking teams have been challenged to provide hybrid workers with secure access to cloud-based applications, and they’re looking for greater automation and additional visibility tools to help them manage today’s diverse enterprise workloads.That’s among the key findings of Cisco’s new Global Hybrid Cloud Trends report, which surveyed 2,500 IT decision makers in 13 countries to discern the trends and priorities of organizations that are managing workloads across multiple private, public cloud and edge computing environments. Cisco said its report is aimed at looking at how these multicloud environments impact network operations.To read this article in full, please click here

AMD gives new Epyc processors a big launch with help from partners

AMD has officially launched the fourth-generation of its Epyc server processors for high performance computing (HPC) in the data center, and all the top OEMs showed up for the party.Officially named the Epyc 9004 but commonly referred to by its codename “Genoa,” the new chip is based on the fourth generation of AMD’s Zen microarchitecture and built on a 5nm manufacturing process by TSMC.Thanks to its chiplet design, which breaks the monolithic CPU into smaller “chiplets” that are tied together with a high speed interconnect, Genoa has up to 96 cores (double Intel’s best at the moment). The chiplets, with 16 cores each, are easier to manufacture than a single 96-core CPU. Genoa includes the latest I/O technology, such as PCI Express 5.0, 12 channels of DDR5 memory, and CXL 1.1.To read this article in full, please click here

IBM goes big on quantum-computer hardware, software

IBM has rolled out its most powerful quantum-computing system so far—the Osprey, a 433-qubit machine that supports three times more qubits than its current Eagle system, and reiterated its plan to have a 1,121-qubit processor, called Condor, out in 2023.At the IBM Quantum Summit 2022, the company also said it was continuing development of a modular quantum platform called System Two that will combine multiple processors into a single system with new communication links that IBM says will use hybrid-cloud middleware to integrate quantum and classical workflows.In addition IBM said it will continue to prototype quantum software applications for specific use cases. By 2025, IBM said, developers will be able to explore quantum machine-learning applications and more.To read this article in full, please click here

Intel announces CPUs and GPUs for high-performance computing

Intel has announced new processors with high-bandwidth memory (HBM) geared toward high-performance computing (HPC), supercomputing, and artificial intelligence (AI).The products are known as the Xeon CPU Max series and GPU Max series. The chips are based on existing technology; the CPU is 4th Generation Xeon Scalable, aka Sapphire Rapids, and the GPU is Ponte Vecchio, the data center version of Intel's Xe GPU technology.To read this article in full, please click here

Bash: A primer for more effective use of the Linux bash shell

Bash is not just one of the most popular shells on Linux systems, it actually predates Linux by a couple of years. An acronym for the “GNU Bourne-Again Shell”, bash not only provides a comfortable and flexible command line, it delivers a large suite of scripting tools—if/then commands, case statements, functions, etc.—that allow users to build complex and powerful scripts.This post contains a collection of articles about important aspects of bash that will help you make better use of this versatile shell.Commands vs bash builtins While Linux systems install with thousands of commands, bash also supplies a large number of “built-ins”—commands that are not sitting in the file system as separate files, but are part of bash itself. To get a list of the bash builtins, just type “help” when you’re on the bash command line. For more about built-ins, refer to “How to tell if you’re using a bash builtin”.To read this article in full, please click here

VMware says its SD-WAN client makes remote-access VPNs unnecessary

VMware is prepping client software for individual devices to connect to its SD-WAN services without the need for remote-access VPNs.Aimed at the work-from-home or hybrid worker, the company will launch VMware SD-WAN Client software that provides secure access to PCs and mobile devices, and provides management, visibility, and policy support as if they were in the office. When it becomes generally available in the spring, it will include versions for Windows, Mac, Linux, iOS, and Android and be bundled with the VMware SD-WAN package.“Post pandemic secure remote access is obviously important, and all of the challenges that led IT to deploy SD-WAN in the first place, like simplicity of management at scale, automation, visibility, and network error correction, are amplified as people work from home,” said Craig Connors, vice president and general manager of SASE Business at VMware. “The software client will bring all of that SD-WAN technology right to your desktop or mobile phone and leapfrog legacy remote access VPNs via a cloud-native, cloud-delivered package.”To read this article in full, please click here

BrandPost: Aruba Wi-Fi 6E: A Slam Dunk for The Golden State Warriors and Its Fans

By: Gayle Levin, Senior Product Marketing Manager at Aruba, a Hewlett Packard Enterprise company.The most successful NBA franchise in the past decade, the Golden State Warriors, is not only innovating on the basketball court by winning four NBA titles in the past seven seasons, they are also leading the game of technological innovation. The franchise became the first in North America to install the latest generation of Wi-Fi technology, Wi-Fi 6E, at a live entertainment venue, Chase Center, in San Francisco, Calif. To read this article in full, please click here

Nvidia tests: DPUs can cut power needed by servers

The chip maker says tests of its BlueField-2 data-processing units (DPU) in servers results in significant power savings over servers that don’t use the specialized chips to offload tasks from the CPUs.The DPUs, or SmartNICs, take on certain workloads—packet routing, encryption, real-time data analysis—leaving the CPU free to process data. But Nvidia says they can also reduce power consumption.The four tests involved running similar workloads on servers with and without DPUs, and Nvidia concluded that even with the additional power draw by the DPUs, overall power consumption by the servers dropped.To read this article in full, please click here

Nvidia tests: DPUs can cut the power servers use

The chip maker says tests of its BlueField-2 data-processing units (DPU) in servers results in significant power savings over servers that don’t use the specialized chips to offload tasks from the CPUs.The DPUs, or SmartNICs, take on certain workloads—packet routing, encryption, real-time data analysis—leaving the CPU free to process data. But Nvidia says they can also reduce power consumption.The four tests involved running similar workloads on servers with and without DPUs, and Nvidia concluded that even with the additional power draw by the DPUs, overall power consumption by the servers dropped.To read this article in full, please click here

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