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September 24, 2021
18:54
Cisco patches three critical holes in IOS XE software
» ‎ Network World

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Cisco has patched three critical security holes in its IOS XE software that's used across a variety of its core routers and switches.

The three critical warnings are part of a big release of 32 security alerts, many of which are IOS XE-related, including firewall, SD-WAN and wireless access vulnerabilities.
Linux security: Cmd provides visibility, control over user activity
Of the critical patches, the worst is a weakness in the Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers; it's rated as a 10 out of 10 on the Common Vulnerability Scoring System (CVSS).

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12:00
Intel: Under attack, fighting back on many fronts
» ‎ Network World

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At first glance, Intel doesn’t look like a company under siege. In its last fiscal year, it recorded $77.8 billion in sales and $20 billion in profit. Its market capitalization is $220 billion as of mid-September 2021.

And yet it is. When you’re the leader, all your competition is gunning for you. Intel is wrestling with a loss of leadership in manufacturing and process nodes, it’s losing share to a very resurgent AMD, an unrelenting Nvidia is challenging Intel for AI dominance, the Atom processor failed spectacularly against Arm in the mobile market, and it’s on its third CEO in three years.
More about Intel:
But Intel revels in the competition. “Our success in so many markets makes us targets for lots of companies,” said Lisa Spelman, corporate vice president and general manager of the Xeon and memory group. “So it’s not a surprise that we have competitors that want a piece of that.”

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September 23, 2021
17:28
Nutanix offers virtual private cloud HCI, multicloud workload management
» ‎ Network World

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Nutanix is releasing enhancements to its AOS operating system and Era database-management service designed to make it easier for enterprises to manage data, workloads, and business-continuity security tools in hybrid cloud environments via software-defined networking capabilities

AOS and Era are both components of the Nutanix Cloud Platform. AOS 6, the new version of Nutanix's hyperconverged infrastructure (HCI) software, is designed to simplify network management across multiple clouds and enable enterprises to build virtual private clouds. Nutanix announced the updates at its .NEXT event this week.

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September 22, 2021
21:10
14 things you need to know about data storage management
» ‎ Network World

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When it comes to storing data, there is no ‘one-size-fits-all’ solution, so before you decide where or how to store your data, first understand the amount and type you have and why you need to store it.
How to make sure data that should be backed up gets backed up
So how do you formulate a sound data-storage management strategy? IDG asked dozens of storage and data management experts, which resulted in these top 14 suggestions regarding what steps you need to take to choose the right data storage solution(s) for your organization—and how you can better ensure your data is properly protected and retrievable.

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15:15
BrandPost: Zero Trust Implementation is a Marathon, Not a Sprint
» ‎ Network World

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Although no one wants to say the quiet part out loud, security isn't easy. If it were, there wouldn't be so many successful cyberattacks. Virtually everyone agrees that the concepts behind the zero-trust security model make sense. Instead of assuming anyone or anything that has gained access to the network can be trusted, assume the opposite. Nothing can be trusted anywhere, whether outside or inside the network perimeter.

Zero trust sounds great on paper, but organizations have been slow to implement it. According to a recent ESG report, "The State of Zero trust Security Strategies," only 13% of organizations have strong adherence to zero-trust principles and 54% have been working on zero trust for less than two years. Although 74% are very familiar with the concepts, 76% expect zero trust to be complex to implement.

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0:40
Weekly internet health check, US and worldwide
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The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

Get regularly scheduled insights by signing up for Network World newsletters

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0:39
Lenovo extends TruScale as-a-service model to its entire portfolio
» ‎ Network World

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Lenovo is expanding its TruScale pay-per-use model to cover all its data-center products—servers, storage—and client-side devices—laptops, tablets.

This transition to a fully integrated, end-to-end, as-a-service model is part of the company’s “One Lenovo” strategy of providing its entire portfolio of clients and servers as a fully managed, on-premises cloud environment through TruScale leasing.

One Lenovo simply means laptops and desktops will be sold along with data-center products together all under one sales program. Lenovo will launch a new channel program in 2022 to encompass the One Lenovo strategy.

The everything-as-a-service announcement came at the company’s virtual Lenovo Tech World 2021 event

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0:13
How to add virtual-machine drive space in Microsoft Server Hyper-V
» ‎ Network World

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Virtualization is an essential part of modern IT infrastructure that presents many routine management tasks to sysadmins, among them increasing virtual hard-drive space when necessary. In my line of work, because of expanding log files, scaling for growing processes, and new tasks for existing servers, this is something I do at least once a month.

Here’s how to do it in a Microsoft Server Hyper-V hypervisor running Windows Server 2016 using either Hyper-V Manager or Failover Cluster Manager.

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September 21, 2021
0:46
Looking at your Linux system's network interface with ethtool
» ‎ Network World

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The ethtool utility on Linux allows you to view and change some of your network-driver and interface-card settings, especially for wired devices. These include their speed, whether the interface uses auto-negotiation, and whether it runs in half- or full-duplex mode. Ethtool also provides an easy way to view or troubleshoot your network interface.

More than likely, ethtool is already available on your Linux system. However, to check, you can use one or both of these commands:
```
$ which ethtool
/usr/sbin/ethtool
$ sudo ethtool —version
ethtool version 5.13
```
To get a sense of how this utility can control settings, run a command like the one below. The -h means “help”. You’ll likely find yourself looking at 10 pages or so of syntax like what is shown here.

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0:44
Tape backup as a defense vs. ransomware
» ‎ Network World

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Tape is definitely not the best choice for primary recovery, but it does have features that make it a credible option for restoring systems and data that have fallen victim to ransomware without having to pay the ransom.

The cloud has many more upsides than tape as a recovery tool in general, but there are circumstances where tape should be seriously considerd, and ransomware recovery is one of them.
How to choose the best NVMe storage array When cloud’s not good enough
Using the cloud for ransomware recovery—or not—has become somewhat of a religious discussion in many circles. Choosing the cloud offers many positive things, including cost, speed, and immediate availability—all great advantages when responding to a ransomware attack.

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September 20, 2021
12:00
Supermicro updates one-socket server line
» ‎ Network World

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For the longest time, single-socket servers were the bottom of the server hierarchy, using "server" chips weaker than what you might find on a desktop. There were even servers that used the Atom processor. These were departmental servers doing the most menial of tasks, like file and print serving.

But that's changing. Driven by high-core-count processors, and no doubt a desire to reduce costs, single-socket servers are getting some hefty workloads. AMD has led the way on this with its 32-core and 64-core EPYC processors that can do more with one chip than what a five-year-old dual-socket server can do. Dell has the servers available.

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September 16, 2021
23:28
Cisco forecasts a bright future for network, app, hybrid work technologies
» ‎ Network World

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In a wide-ranging Investor Day conference Cisco executives outlined what they described as a $900 billion total market of high-level technology targets the networking giant expects to be a dominant force in developing toward in the next four years.

Those targets include the six areas Cisco has been building toward for the past couple years, including agile networks, optimized applications, hybrid work, the Internet of the future, end-to-end security and edge networking capabilities but also other areas such as cloud security, hybrid cloud, IoT and more.
The 10 most powerful companies in enterprise networking 2021
“We have built a portfolio designed for the modern world, and driven compelling new innovation from Cisco Plus and the Webex Suite to Silicon One and Secure X just a few examples of key technologies that we have provided over the past few years,” said Chuck Robbins, Cisco CEO.

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18:32
Palo Alto shapes SASE package for hybrid enterprises
» ‎ Network World

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Palo Alto Networks has bolted together its SD-WAN and security technologies to offer an integrated, cloud-based, secure-access service edge (SASE) offering aimed at simplifying distributed enterprises.

Called Prisma SASE, the package brings together the company’s core Prisma Access package of cloud-based, next-generation security gateways with its Prisma SD-WAN technology it got when it bought CloudGenix for $420 million last year.

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16:57
BrandPost: How to Design Your Wireless Network for Wi-Fi 6E
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By Peter Thornycroft, Office of the CTO at Aruba, a Hewlett Packard Enterprise company.

For most organizations, whether designing a wireless network for a greenfield deployment or augmenting an existing one to accommodate 6Hz, there are several factors to consider for Wi-Fi 6E. Any discussion of how to introduce Wi-Fi 6E and the 6GHz band will depend on specifics on the ground, including existing switches, cabling, and priority locations…and most importantly, the access points (APs) themselves.
Aruba

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12:00
DHCP: How to work with user classes on Windows
» ‎ Network World

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Whether in an existing network or a new one, there is an aspect of design that cannot be skipped: deciding if handing out IP addresses will be dynamic (automatic) or manual (one-by-one) or—the most common—a combination of the two.

By choosing to distribute them dynamically you are choosing to use a dynamic">[https:] host configuration protocol (DHCP) service somewhere on your network, and there can be some tricks to that regardless of what server you use. For this discussion, I will describe how to use user classes on a Windows DCHP Server to specify a range of IP addresses and to assign range-specific DHCP options.

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11:00
What to expect from SASE certifications
» ‎ Network World

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Secure access service edge (SASE) is a network architecture that rolls SD-WAN and security into a single, centrally managed cloud service that promises simplified WAN deployment, improved security, and better performance.

According to Gartner, SASE’s benefits are transformational because it can speed deployment time for new users, locations, applications and devices as well as reduce attack surfaces and shorten remediation times by as much as 95%.

With the pandemic, adoption of SASE has been on an upward swing. A June report from Sapio Research, commissioned by Versa Networks, finds 34% of companies are already using SASE, and another 30% plan to in the next six to 12 months.

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September 15, 2021
17:49
Juniper enables Mist to handle network-fabric management
» ‎ Network World

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Juniper Networks is embracing an open campus-fabric management technology supported by other major networking vendors and at the same time making it simpler to use by removing much of the manual work it can require.

The company is adding Ethernet VPN-Virtual Extensible XLAN (EVPN-VXLAN) support to its Mist AI cloud-based management platform let customers streamline network operations.

EVPN-VXLAN separates the underlying physical network from the virtual overlay network offering integrated Layer 2/Layer 3 connectivity as well as programmability, automation and network segmentation among other features. The open technology is offered in a variety of forms by most networking vendors including Cisco, Arista, Aruba and others.

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September 14, 2021
23:39
IBM ships high-density tape drives based on lastest spec
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IBM announced the general availability of the industry’s first magnetic tapes and drives based on the LTO-9 Ultrium specification for massive data capacity and resilience.

The Linear Tape-Open (LTO) 9 spec features a 50% improvement in capacity over LTO-8, which translates to 18TB native capacity, or 45TB after data is compressed. Fujifilm and Sony announced media last month, but IBM is the first with a drive.

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19:23
BrandPost: The Post-Pandemic Data Center: Trends to Watch
» ‎ Network World

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While the unprecedented global pandemic has paused our lives for more than a year and a half now, it has not slowed the massive digitization of data, often referred to as digital transformation, that is now a primary challenge as businesses evolve their digital strategies.

Digitization of the enterprise, and the resulting digital services, are rapidly increasing requirements for larger technology stacks to store, compute, analyze and connect the data. Supporting this is the Valuates Report, which projects the global data center market for power will increase from $15 billion in 2020 to $21.5 billion by 2026.

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17:13
BrandPost: Zero Trust, UTM, and Best-of-Breed SASE – Without Compromise!
» ‎ Network World

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In today’s cloud-first world, the WAN and network security are more intertwined than ever before. To realize the full promise of digital transformation, work from anywhere, and the Secure Access Service Edge (SASE) model, enterprises must transform both their WAN and security architectures to support business applications hosted and accessed from anywhere, by anyone authorized to access them, and from any device.

Zero Trust: Securing the Edge by Application, User/Device Identity, and Role-Based Context

With the increase in cloud applications, mobile devices, remote workers, and IoT-connected devices, enterprises must align their security policies based on business intent while also striving for consistency. Aruba ClearPass integration with the Aruba EdgeConnect SD-WAN edge platform augments application intelligence with the user and device identity and role information. The additional identity-based context enables fine-grained segmentation and consistent security policy enforcement that can be enforced network-wide, from the edge to the cloud, while also accelerating troubleshooting and problem resolution.

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12:00
Managing and monitoring swap space on Linux
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Most of us don't often think about swap space unless we run into a problem on our systems that suggests we don't have enough. Even so, viewing and gauging the adequacy of swap space on a system is not overly complicated, and knowing what's normal for your system can help you spot when something is wrong. So let's check out some commands that can help you look into your swap space. But first, let's review some fundamentals.
What swap space is and how it's used
Swap space is disk space that acts something like an extension of memory. It gets used when the system's physical memory (RAM) is full and the system needs more memory resources. It's called "swap" because the system will move some inactive pages in memory into the swap space so that it can accommodate more data in RAM. In other words, it provides a way to free up RAM on a busy system.

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September 13, 2021
23:33
BrandPost: While Remote Work is Here to Stay, Temporary Solutions Must Go
» ‎ Network World

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For many organizations, empowering employees to continue to work from home after the pandemic, at least part of the time, is part of their new normal. There are plenty of reasons for this. First, employees overwhelmingly prefer the flexibility and work-life balance that work-from-anywhere (WFA) provides. And second, a new study from Stanfordshows that productivity increased a jaw-dropping 47% YoY in 2020, with most of that gain led by remote workers. And at the same time, many organizations have realized significant savings due to reduced costs associated with a dark physical campus.

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18:03
Gartner: IT skills shortage hobbles cloud, edge, automation growth
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Gartner says the current paucity of skilled IT workers is foiling the adoption of cloud, edge computing, and automation technologies.

In its "2021-2023 Emerging Technology Roadmap" based on surveying 437 global firms, Gartner found that IT executives see the talent shortage as the most significant barrier to deploying emerging technologies, including compute infrastructure and platform services, network security, digital workplace, IT automation, and storage.

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12:00
VMware CEO looks to accelerate enterprise multicloud expansion
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Since he helped build the highly successful ship that is VMware, it is widely expected the company’s CEO Raghu Raghuram, appointed in June, won’t rock that boat too much, at least in the near term.
VMware
Raghuram is credited with helping build and grow the company’s core virtualization and multicloud business as well as its software-defined data center strategy. VMware also credits Raghuram with driving partnerships with Dell Technologies and hyper-scaler customers.

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12:00
Lenovo and VMware partner for resilient edge servers
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VMware and Lenovo have collaborated on edge computing systems, with the goal of making them more robust and resilient.
Tech Spotlight: Edge Computing
- 4 essential edge computing use cases (Network World)
- Edge computing's epic turf war (CIO)
- Securing the edge: 5 best practices (CSO)
- Edge computing and 5G give business apps a boost (Computerworld)
- Amazon, Google, and Microsoft take their clouds to the edge (InfoWorld)
As part of the deal, Lenovo's Infrastructure Solutions Group (ISG) will pre-load VMware's edge software on its ThinkSystem SE350 Edge servers, a pair of ruggedized servers designed specifically for edge deployments. This includes vSphere, vSan, and Tanzu.

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September 10, 2021
22:54
What is MPLS: What you need to know about multi-protocol label switching
» ‎ Network World

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The thing about MPLS is that it’s a technique, not a service — so it can deliver anything from IP VPNs to metro Ethernet. It's expensive, so with the advent of SD-WAN enterprises are trying to figure how to optimize its use vs. less expensive connections like the internet

Did you ever order something online from a distant retailer and then track the package as it makes strange and seemingly illogical stops all over the country.

That’s similar to the way IP routing on the Internet works. When an internet router receives an IP packet, that packet carries no information beyond a destination IP address. There is no instruction on how that packet should get to its destination or how it should be treated along the way.

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22:42
BrandPost: IT Scalability as a Competitive Advantage
» ‎ Network World

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The global pandemic waxes and wanes, but it has not slowed the massive digitization of data, often referred to as digital transformation, that is now challenging large enterprises and government organizations that are attempting to deploy new digital strategies. Since 2016, the digital transformation phenomena have generated 90% of the world’s data and this astonishing growth shows no sign of slowing.

Digital transformation is rapidly increasing requirements for larger technology stacks to store, compute, analyze and connect the data. All of this requires more power as evidenced by the Valuates Report, which projects the global data center market for power increasing 43% from $15 billion in 2020 to $21.5 billion by 2026.

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22:06
BrandPost: The Post-COVID Digital Transformation of the Data Center
» ‎ Network World

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In the early days of the digital era, data centers were mysterious buildings shrouded in secrecy. They were huge, stark buildings billowing steam and looming in the distance. And the secrecy is understandable when you consider that for the enterprises using them, their IT operations within these buildings were the “crown jewels” supporting their businesses.

While some enterprises chose to build and manage their own data centers, others have chosen to outsource their IT environment to third-party, multi-tenant colocation data centers for their shared resources and economies of scale. Those early centers were considered quite simple. They provided the secure data center space, power and connectivity (ping, power and pipe) for companies to outsource their IT environment.

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20:07
Palo Alto launches an enterprise-grade security pack for remote workers
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Palo Alto Networks has rolled out a Wi-Fi based package that the company says provides remote workers with enterprise-class security features.

Called Okyo Garde, the bundle incuds Wi-Fi-6-based hardware and mobile application-security software that includes threat-intelligence updates, and sells the hardware and software to enterprises as a customizable subscription. The package also offers malware and ransomware prevention, phishing protection, infected device detection, and suspicious-activity monitoring and control, the company said.
Linux security: Cmd provides visibility, control over user activity
Workers’ homes are becoming enterprise “branches of one” with multiple devices without IT teams or a deep set of cybersecurity protections, yet they face the same threat landscape as any enterprise, said Mario Queiroz, executive vice president of Palo Alto Networks. Threat actors may even see them as more vulnerable and therefore attractive entry points into the corporate network, Queiroz said.

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18:31
Cisco adds specializations to its CCNP cert
» ‎ Network World

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Cisco’s network certification lineup underwent a major overhaul last year, and one of the big changes is that specialization options appear at the professional level with the Cisco Certified Network Professional (CCNP).

Before Cisco rearchitected its certifications, there were 10 concentrations associated with Cisco Certified Network Associate (CCNA), Cisco’s foundational certification. As of last year, the CCNA no longer has different tracks. It’s focused on networking fundamentals, and there’s only one exam.

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August 27, 2021
16:25
Comcast grabs SD-WAN specialist Masergy
» ‎ Network World

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Comcast is certainly serious about boosting its corporate networking business. Or the cord cutters are really causing some damage. Maybe both. Either way, Comcast Business just announced plans to acquire privately-held Masergy Communications, an SD-WAN and cloud-based security specialist.

Comcast is a public company, but Masergy is not, so terms of the deal were not disclosed. Masergy was acquired by private equity firm Berkshire Partners in 2016.

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August 26, 2021
12:00
A closer look at two newly announced Intel chips
» ‎ Network World

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Our initial look at Intel’s Architecture Day focused on the new Xeons and IPU processors. Now we’ll get into the fine details, as well as look at other upcoming technologies.
Sapphire Rapids
Intel’s upcoming next-generation Xeon is codenamed Sapphire Rapids and promises a radical new design and gains in performance. One of its key differentiators is its modular SoC design. The chip has multiple tiles that appears to the system as a monolithic CPU and all of the tiles communicate with each other, so every thread has full access to all resources on all tiles.

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August 24, 2021
22:57
Linux turns 30
» ‎ Network World

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Something happened back in 1991 that dramatically changed the future of computing. Linus Torvalds, a Finnish-American software engineer, released the Linux kernel and the second version of the GNU General Public License (GPLv2). Had this not happened, a good portion of the technology we use today would not be what it is .

It all started on August 25^th of that year when Torvalds announced in a usenet post that he was working on a free OS and that it would be ready within a few months. He also said it “won’t be big and professional like gnu,” but that wasn’t exactly how things turned out!
The GPL
The beauty of the Gnu GPL was that, instead of restricting what users can do with the Linux kernel, it maximized their rights. Richard Stallman, GNU founder, referred to these rights as the four freedoms of free software: the freedom to run, copy, study/improve, and distribute. This was akin to turning the function of a license inside out.

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12:00
Choosing and changing your Linux shell
» ‎ Network World

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There are quite a few shells on Linux system and more that can be easily added. This post examines some of the more popular shells, how they differ and the files that contribute to their configuration.

The default shell on most Linux systems is bash. Unless you make an effort, any user accounts added to the system will be assigned bash as their login shell. Bash has been around since 1989 and was meant to replace the Bourne shell (sh). In fact, if you take a look at /bin/sh, you'll probably find that it's nothing more than a symbolic link to /bin/bash.
```
$ ls -l /bin/sh
lrwxrwxrwx. 1 root root 4 Jan 25  2021 /bin/sh -> bash
```
Summarizing your command-line usage on Linux
```
 
```
Popular Shells
Some of the best and most popular shells include:

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12:00
How to choose the best NVMe storage array
» ‎ Network World

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Storage will never be as fast as system memory--that’s just the nature of system architecture. But thanks to NVMe (nonvolatile memory express), SSDs can deliver such blazingly fast performance, the penalty of “going to disk” tends to be miniscule.

NVMe encompasses a family of specifications for how software talks to storage. It works over a number of transport methods, including PCI Express, RDMA, and TCP. Storage arrays that support the NVMe standard are the sports cars of storage, exposing super-fast storage media more directly and efficiently than any other mainstream method allows.

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4:21
Weekly internet health check, US and worldwide
» ‎ Network World

Tags: [edit]

The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

Get regularly scheduled insights by signing up for Network World newsletters

To read this article in full, please click here
August 23, 2021
18:29
Intel shifts to multiarchitecture model
» ‎ Network World

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There was a time when Intel was all-x86, all the time, everywhere.

Not anymore.

Last week Intel held its annual Architecture Day with previews of multiple major upcoming architectures beyond x86. For once, it’s not hyperbole when they say these are some of the “biggest shifts in a generation.”
CEO Gelsinger shakes up Intel
And it’s not just architectures or just more and faster cores, it’s new designs, whole new ways of doing things. Instead of just packing more cores onto a smaller die, Intel is switching to a new hybrid architecture that adds low-energy-draw cores, similar to what some ARM chip makers have been doing for years on mobile devices.

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12:00
Schneider Electric joins the hardware-as-a-service movement
» ‎ Network World

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French data-center hardware giant Schneider Electric is the latest OEM to jump on the on-demand leasing program hardware, in this case the company’s American Power Conversion line of uninterruptible power supplies (UPS).

The primary beneficiaries are channel partners, but the user comes out ahead as well. This is similar to the on-premises leasing model used by Hewlett Packard Enterprise, Dell Technologies, Lenovo, Cisco, and more. Rather than make a massive up-front purchase, you lease the gear and pay monthly for actual use.

The deal is for channel partners to pair APC Smart-UPS solutions with its monitoring and dispatch services to create their own service offering. Schneider says this partnership will allow channel partners to offer more visibility and front-end maintenance across their customers’ dispersed UPS systems.

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August 20, 2021
15:33
Attack that defeats AMD chip security possible, unlikely
» ‎ Network World

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AMD likes to crow about how its Epyc server processors can encrypt the content of virtal machines while they’re in operation so they are secure and isolated, preventing other VMs on the processor from accessing the encrypted contents.

Well, researchers from the Technical University of Berlin have found a weakness in that feature, known as Secure Encrypted Virtualization (SEV), and published a theoretical attack that defeats the protection.

The paper ”One Glitch to Rule Them All: Fault Injection Attacks Against AMD’s Secure Encrypted Virtualization” details how the researchers succeeded in mounting a voltage fault-injection attack.

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August 19, 2021
23:43
BrandPost: Managing Quality of Experience for Work-from-Anywhere Employees with SD-WAN and ZTNA
» ‎ Network World

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Just over a year ago, organizations were grappling with transitioning their traditional workforce to a work-from-home model. This included moving critical resources to the cloud, ensuring every employee had access to essential business applications, and securing communications between the home office and the corporate network. But today, most of those same organizations are undergoing another shift. But instead of returning to the traditional pre-pandemic work model, they are looking to accommodate a new work-from-anywhere (WFA) approach.

There are many reasons why a WFA strategy is quickly becoming the new norm. Many workers prefer working from home, and there are few technical reasons why they should not be able to do so. Productivity rates and work satisfaction scores are consistently high because many workers appreciate the work-life balance that remote work, even part of the time, offers. And for the savvy company, there are numerous logistical and financial advantages that can be realized by reducing brick and mortar overhead.

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20:12
Cisco: Product sales jump, so do some prices
» ‎ Network World

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Cisco’s 4Q and year-end financial reports highlight growth in many categories that are important to enterprise customers including wireless, campus switching, routing and security products.

CEO Chuck Robbins said that the company’s fourth quarter boasts the strongest product-order growth rate the company has seen in over a decade, citing a 30% product order growth year on year, and more than 17% order growth versus pre-COVID Q4 fiscal 19 product bookings.
The 10 most powerful companies in enterprise networking 2021
“In Q4, we saw double-digit revenue growth in campus switching, Catalyst 9000, high-end routing, wireless, and in our Zero Trust solutions, along with strength in our security endpoint portfolio. We also had a very strong adoption of our Acacia optical solutions,” Robbins said.

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August 18, 2021
22:59
Top SD-WAN vendors and how they got there
» ‎ Network World

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Even in the midst of the pandemic, revenues from SD-WAN grew 18.5% from 2019 to 2020, and is expected to grow another 26.5% this year, according to IDC.

In the research firm’s forthcoming Worldwide SD-WAN Infrastructure Forecast, IDC projects compound annual growth of 18.9% through 2025, when total revenues will top $7 billion.
SD-WAN buyers guide: Key questions to ask vendors
“We expected to see a significant drop due to the pandemic, dragging the growth rate down to at least single digits,” said Brandon Butler, Senior Research Analyst, Enterprise Networks at IDC, but the rise of cloud computing and the need to connect enterprises to cloud-based resources including video conferencing applications offset the slowdown caused by a newly remote workforce.

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12:01
Marvell buys Innovium for cloud data-center expertise
» ‎ Network World

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Network-acceleration processors are becoming as popular as CPUs, and the latest big buy is Marvell Technology acquiring Innovium, a provider of networking solutions for cloud and edge data centers.

Marvell already has an extensive portfolio of Ethernet switches, and it recently acquired Inphi, a high-speed electro-optics leader for cloud data centers and carrier networks. Now comes the Innovium purchase.

Innovium’s Teralynx switching architecture is said to deliver ultra-low latency, high performance, power-optimized telemetry--critical in cloud-scale data centers. The Teralynx family of switches range from 1T/s to 25.6T/s of programmable switches with support for 10G to 800G while offering lower latency and the largest on-chip buffers, resulting in the best application performance.

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12:00
Weekly internet health check, US and worldwide
» ‎ Network World

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The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

Get regularly scheduled insights by signing up for Network World newsletters

To read this article in full, please click here
August 17, 2021
23:14
5 things you need to know about pay-per-use hardware
» ‎ Network World

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Pay-per-use hardware models such as HPE GreenLake and Dell Apex are designed to deliver cloud-like pricing structures and flexible capacity to on-premises data centers.
And interest is growing as enterprises look for alternatives to buying equipment outright for workloads that aren’t a fit for public-cloud environments.

The concept of pay-per-use hardware has been around for more than a decade, but the buzz around it is growing, said Daniel Bowers, a former senior research director at Gartner. “There’s been a resurgence of interest in this for about four years, driven a lot by HPE and its GreenLake program.”

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19:30
BrandPost: SASE: SD-WAN First or Security First?
» ‎ Network World

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In our SASE video series, we’ve explored WAN and security architecture transformation with SASE. We’ve described how the right SASE architecture enables enterprises to ensure direct and secure access to cloud-hosted applications and services for users, regardless of location or the devices used to access them. We’ve talked about how IoT requires security considerations that SASE doesn’t completely address. And we’ve articulated that the overall business driver to transform WAN and security architectures to SASE is to deliver the best application quality of experience for users.

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12:00
Are you ready for the 3G sunset?
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All good things must come to an end, and that includes the 3G network that has been around since the late aughts. Telcos are supporting and building out vastly superior 5G networks, and they don’t want to spend time and money maintaining older technologies that aren’t used much.

Removing older 3G towers makes space for 5G equipment and simplifies network management. Plus, some 3G spectrum can be used for 4G data, although 3G can’t be used for 5G, and 4G still has some years left.
How to deploy 802.1x for Wi-Fi using WPA3 enterprise
Verizon is cutting off 3G on Dec. 31, 2022; AT&T is turning off its 3G network in February 2022; and T-Mobile has multiple dates in 2022 for the various networks it manages since it is a mix of T-Mobile and Sprint legacy networks as a result of their merger.

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11:59
How password hashing works on Linux
» ‎ Network World

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You may know that passwords are hashed on Linux systems, and the hashes are stored in the restricted access /etc/shadow file. But did you know that you can also determine the hash method that was used and report the number of days since a password was last changed from this file as well?

To look at a user record in the /etc/shadow file, run a command like this:
```
$ sudo grep nemo /etc/shadow
```
You should see a line that looks something like this:
```
nemo:$6$FVYIIgcEcObSsUcf$FsSBlV9soVt.Owbd4xnvhlZzjx73ZBQQBT0WM
yah6qcdnH91tBf9C4EaYbRtr7jKGETP/TwBNjyrDFqhvK0NV1:18698:7:90:7
:::
```
Viewing and configuring password aging on Linux
```
 
```
In spite of how long that line is, it's quite easy to parse. The first two fields in the lines of this colon-separated file store:

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August 16, 2021
17:21
Are enterprises loving managed services?
» ‎ Network World

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There's a lot in networking that never measures up to the hype, so maybe it's good that this is balanced sometimes by areas where the hype falls far short of reality. Managed services is one of those things.

It always seems to be bubbling just below the surface of attention, and yet it may be the most important topic in networking today. I had a chance to chat with 59 enterprises that were involved with or launching managed-service projects and another 118 who had no current managed-service projects. I'll summarize what I found here.
SD-WAN buyers guide: Key questions to ask vendors
All of these enterprises had been aware of managed services for at least 20 years, and all but 31 had considered them at one point or another. Interestingly, 141 of the 177 total enterprises believe that MPLS VPNs are a form of managed service, and when I dug into this, the response was that “managed services” are about reducing the user's management burden. VPNs do that, so they're a sort-of-managed service.

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12:00
Tech Resume Library: 27 downloadable templates for IT pros
» ‎ Network World

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A well-crafted resume will attract recruiters, HR pros and hiring managers, but getting it just right is a daunting task. To jump start the process, Insider Pro has assembled this collection of real resumes revamped by professional resume writers. (Watch this space for new templates.)
August 13, 2021
18:54
Cisco to buy Epsagon for application, microservice management
» ‎ Network World

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Cisco is looking to bolster its enterprise application management suite by buying cloud-based application-performance firm Epsagon for $500M.

Founded in 2017, the Israel-based Epsagon develops cloud-based application monitoring software focused on scrutinizing cloud microservices and applications.
The benefits of converged network and application performance management
Businesses are adopting cloud-native technologies, microservices, and containerized components on a large scale while leveraging an extensive web of traditional components, third-party services and application programming interfaces, wrote Liz Centoni, Cisco’s chief strategy officer and general manager, applications, in a blog about the acquisition.

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August 12, 2021
23:09
Private 5G as a service is now a thing
» ‎ Network World

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A private 5G platform designed to offer the latest-generation licensed wireless technology to enterprise users as a service was announced today by Japanese telecom giant NTT.

The company said its private 5G-as-a-service platform, which it calls P5G, would use CBRS, 4G/5G frequencies available as public licenses, and sub-6GHz bands in the US to provide businesses with their own 5G networks. The company said also that its platform is highly flexible, working with a wide variety of software standards and networking partners to ensure availability around the country.

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22:37
Atos reportedly trying to dump on-prem consulting business
» ‎ Network World

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Just months after it was considering buying DXC Technology, Atos is reportedly looking to sell some of its legacy business operations, including its data-center and communications businesses. If true, it’s a further sign that the on-prem consulting business is falling out of favor.

Bloomberg reported on Tuesday that Atos is exploring a sale of its legacy information technology business, including some outsourcing operations. One day later, Atos CEO Elie Girard said during its earnings call with analysts that the company is definitely looking to make some kind of changes to its businesses.

To read this article in full, please click here
22:14
Juniper touts cloud-ready data center, AI, automation
» ‎ Network World

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Enterprise networks are focused on buying full-stack offerings that include key software components such as management, automation and AI but also routing, switching and security rather than a piecemeal approach.

That trend is being driven by a post-COVID rethinking of network architecture but also the need to simplify the network and access to cloud resources, says Juniper Networks’ chief operating officer Manoj Leelanivas.
SD-WAN buyers guide: Key questions to ask vendors Juniper Networks
Manoj Leelanivas

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August 11, 2021
22:54
5 steps for modernizing enterprise networks
» ‎ Network World

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The business value of the network has never been higher, and this is driven by digital transformation as borne out businesses accelerating their digital initiatives by as much as seven years due to the pandemic. This is had a profound impact on the enterprise network as most of the enabling technologies such as cloud, mobility and IoT are network centric.

This intense focus on digital transformation has exposed many flaws with legacy networks. They are rigid, require intensive manual processes, and lack the agility and intelligence to meet the demands of digital business. Organizations need to make network modernization a priority if they are to maximize their investments in other technologies. Here are five steps that all businesses should consider when modernizing the network.

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12:00
ITRenew and Vapor IO partner for edge infrastructure and connectivity
» ‎ Network World

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ITRenew and Vapor IO are teaming up on an enterprise service that's designed to bring performance and affordability to edge computing.

ITRenew, which I've written about before, specializes in acquiring used data-center gear from hyperscale vendors, refurbishing it, and selling it to data-center operators for much less than new equipment would cost.

Up until now, ITRenew focused on enterprise data-center customers. Now it's eyeing the edge through its partnership with Vapor IO, which specializes in colocation, networking and interconnection services.

To read this article in full, please click here
August 10, 2021
17:54
Working around a memory leak in Cisco Cat 9000 switches
» ‎ Network World

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Cisco Catalyst 9000 Series switches have become the switch of choice for many enterprises, including the environment that I work in, where Cisco Catalyst 9300 24- and 48-port switches running Gibraltar-16.12.3 code had become the standard for the access layer when more than 12 ports were needed.

That was about two years ago, and a year or so after that we began receiving notifications from an onsite location that there were intermittent network outages and performance degradation at the site. This is an account of how we found workarounds to the problem until Cisco provided a permanent fix.
The 10 most powerful companies in enterprise networking 2021
We started troubleshooting the issue and found the following syslog messages that we had never seen before:

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17:53
Extreme targets SD-WAN services with Ipanema buy
» ‎ Network World

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With an eye toward reinforcing its cloud management business, Extreme Networks said it will acquire Ipanema’s SD-WAN business for about $73 million in cash.

Ipanema and its SD-WAN business has been owned by France-based network orchestration firm Infovista since 2015 and has approximately 400 customers, mostly in Europe. Its cloud-managed SD-WAN platform is designed to deliver different workloads and applications securely across conventional wide-area networks and multicloud service providers, according to the company.

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12:00
The 'Itanic'—Intel's ill-fated Itanium processor—finally sinks
» ‎ Network World

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After two decades of failure and endless jokes, the Intel Itanium is officially no more. Intel has finally stopped shipping its doomed-from-the-start 64-bit processor, two years after saying it would cease shipments.

Really, the end came some time ago. The last Itaniums were the 9000 series “Kittson,” which shipped in 2017. It’s a bane of technology firms to support technologies they would much rather ditch but can't due to customer investment, and for years Intel was obligated to support the paltry market that existed for Itanium.

To read this article in full, please click here
12:00
Using the Linux cut command to grab portions of lines from files
» ‎ Network World

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One surprisingly easy command for grabbing a portion of every line in a text file on a Linux system is cut. It works something like awk in that it allows you to select only what you want to see from files, enabling you to pull fields (regardless of the delimiter used), characters or bytes. To check on cut, you can ask about its version like this:
```
$ cut --version
cut (GNU coreutils) 8.32
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later < [https:] This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by David M. Ihnat, David MacKenzie, and Jim Meyering.
```
Selecting by field
To illustrate how the cut command works, we'll first run commands using a sample "cities" file that contains details of the largest cities in the US in a tab-separated format. The lines in this file look something like what is shown below:

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August 09, 2021
12:00
Network certs 2021: Significant raises for the right ones
» ‎ Network World

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COVID-19 kicked off one of the most disruptive economic periods since World War II, and companies scrambled to shift business processes to the cloud to meet escalating digital demands. In fact, companies digitized many activities at a rate 20% to 25% faster than previously thought possible, according to research from McKinsey & Company.

That acceleration has impacted the IT workforce: 85% of IT hiring managers say their hiring needs have changed, according to a survey by colocation provider INAP. This creates an opportunity for IT professionals who want to move ahead in their careers. Getting trained in key technologies can be a steppingstone not only to better pay but also to leadership jobs with more responsibilities.

To read this article in full, please click here
12:00
Real IT leadership: Selling the transformative dream
» ‎ Network World

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It's one thing to cook up a great new initiative, but making it happen requires powers of persuasion, solid partnerships, and access to genuine technical insight.
12:00
US IT job growth remains steady; 2021 poised for record hiring levels
» ‎ Network World

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For the second month in a row, IT jobs grew by more than 11,000 new positions, indicating the post-pandemic recovery is stabilizing.
August 05, 2021
18:21
Chip shortage has networking vendors scrambling
» ‎ Network World

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High-tech vendors continue to battle supply-chain problems and higher costs brought on by the current semiconductor shortage, according to statements made in the most recent round of earnings calls.

As Network World reported in May, COVID-19 triggered an explosion of the global remote workforce, which created extraordinary demand for new tech gear. It also forced the shutdown of processor plants. Restarting those plants and renewing supply chains to their pre-pandemic state will be a lengthy process, industry leaders warn.

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17:26
Ransomware recovery: Cloud is the way to go
» ‎ Network World

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If you’ve been attacked by ransomware, a fully automated, high-speed disaster recovery is the way to successfully avoid paying the ransom. Recovery is the second step in the two-step process after getting rid of the malware as described here.

There are three ways to affect a disaster recovery after a ransomware attack: a traditional recovery, an image-based recovery, or a cloud-based recovery. But the only way for most environments to afford automating a large-scale recovery is to recover in the cloud.
How to protect backups from ransomware Traditional disaster recovery
A traditional disaster recovery is one where you begin a traditional restore after you have suffered a loss—in this case, after you receive a ransom demand. It is still a traditional restore if you are restoring virtual machine images to a hypervisor platform such as VMware, Hyper-V, or KVM, or a hyperscaler such as AWS, Azure, or GCP. What makes it traditional is that you are waiting until the event happens to begin the restore. (As you will see later in this article, there are ways to restore the data before you need it.)

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August 04, 2021
0:21
BrandPost: Fueled by Innovation, Sustainability Moves Back to the Forefront
» ‎ Network World

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As the global pandemic gradually winds down, carbon emissions are again on the increase and sustainability is moving back to the forefront as a global concern. While data centers have played a pivotal role providing the digital infrastructure for the emerging global economy, digital transformation continues to increase the power required for today’s modern data center.

A Valuates Report projects the global data center market for power increasing from $15 billion in 2020 to $21.5 billion by 2026. For their part, data centers are becoming more responsible corporate citizens by increasing use of renewable energy. There is evidence: The market for green data centers is projected to grow from $49 billion in 2020 to $140 billion by 2026. The most astute data center providers now recognize how the altruistic nature of corporate sustainability can create value for investors and benefit society at the same time. As a result, innovation and creative sustainability programs are emerging in the US and abroad.

To read this article in full, please click here
August 03, 2021
18:06
Juniper software triggers network response to threats
» ‎ Network World

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Juniper Networks continues to grow its enterprise cloud-security family with a new product that promises to protect application workloads in any cloud or on-premises environment.

The company rolled out Juniper Cloud Workload Protection package--a lightweight software agent that the company says controls application execution and monitors application behavior to help businesses spot and fix anomalies.
Backup lessons from a cloud-storage disaster
The idea is to provide protection from attackers looking to exploit application vulnerabilities, said Kate Adam, senior director of security product marketing for Juniper Networks.

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12:00
Computational storage startup Pliops launches flagship product
» ‎ Network World

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A startup called Pliops has emerged from stealth mode with a new way to do data processing. Rather than load data into main memory as is traditionally done, the Pliops technology offloads data and the application to a PCI Express card, and data is processed where it is stored, thus freeing up the CPU for other tasks.

It's called computational storage. The concept has been around for a while, but like so many technological ideas, it was ahead of its time. The technology needed to catch up to the concept. It could never be done with mechanical hard drives, and SSDs, too, needed to make gains. Recently, Samsung and Xilinx partnered to deliver a compute-on-storage SSD device that uses a Xilinx FPGA to offload the processing work.

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2:40
The many faces of awk
» ‎ Network World

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If you only use awk when you need to select specific fields from lines of text, you might be missing out on a lot of other services that the command can provide. In this post, we'll look at this simple use along with many other things that awk can do for you with enough examples to show you that the command is a lot more flexible than you might have imagined.
Plucking out columns of data
The easiest and most commonly used service that awk provides is selecting specific fields from files or from data that is piped to it. With the default of using white space as a field separator, this is very simple:

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August 02, 2021
20:40
BrandPost: Taking Zero Trust to the Edge
» ‎ Network World

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No one can deny that networks have changed. With the rise in remote working and multi-cloud adoption, the traditional idea of the enterprise perimeter has changed. The move to cloud and hybrid networks made traditional leased line networks used for routing traffic back to data centers less relevant. Now networks are distributed and complex with more edges. Instead of a data center as a hub of the network, now software-defined wide area networks (SD-WAN) are characterized by application-aware dynamic routing and security.

To save bandwidth and reduce latency, computation and data storage is being moved to the enterprise edge so it is as close to users as possible. But creating these additional network edges results in increased levels of complexity. Today's networks have edges from IoT edges, home edges, branch office edges, headquarters edges, enterprise data center edges, and a multitude of cloud edges.

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12:00
SSD prices expected to spike as Intel, AMD ship new server processors
» ‎ Network World

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Prices of enterprise-grade solid-state drives are likely to jump in the coming months, perhaps by as much as 15% over current SSD prices, says TrendForce, a Taiwanese market research firm that focuses on the memory market.

In a rare and no doubt unintentional move, Intel and AMD are on a path to begin shipping new processors at roughly the same time: Intel with its Ice Lake generation of Xeon processors and AMD with its Milan processors. You can expect HP Enterprise, Dell Technologies, Lenovo, Super Micro, and every other OEM to unleash a raft of servers at the same quarter as they usually do.

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June 10, 2021
23:46
Sunlight aims at more efficient virtualization
» ‎ Network World

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Virtualization software is dated and does not take full advantage of modern hardware, making it extremely power-inefficient and forcing data centers to overprovision hardware to avoid poor performance.

That’s the pitch of Sunlight, a virtualization-software vendor whose products take advantage of technologies that didn’t exist when Xen, KVM, VMware and Hyper-V were first developed.
[Get regularly scheduled insights by signing up for Network World newsletters.]
“The cloud infrastructure or virtualization stacks have been designed and built 15 to 20 years ago,” said Kosten Metreweli, chief strategy officer of Sunlight. “So the big problem here is that back then, I/O, and particularly storage, was really slow. So fast forward, and we now have NVMe storage, which pushes millions of IOPS from a single device, which is orders of magnitude better than was possible just a few years ago.”

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22:57
Cisco upgrades intent-based-networking performance, security, analytics
» ‎ Network World

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Cisco brought new features to its DNA Center network-control platform that promise to improve performance, management analytics and security for its enterprise network customers.

The new software features integration of a ThousandEyes agent that bulks-up the platform’s network-intelligence monitoring, a two-fold increase in the number of clients the system can support, and improved security and operational capabilities.
NaaS is the future but it's got challenges
DNA Center is the heart of Cisco’s intent-based networking strategy and is the vendor’s core-networking control platform supporting myriad services from analytics, network management and automation to assurance setting, fabric provisioning, and policy-based segmentation for wired and wireless enterprise networks.

To read this article in full, please click here
June 09, 2021
16:35
New NVMe spec brings new support for hard drives
» ‎ Network World

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The new NVM Express 2.0 has been released and with it a surprise: The non-volatile memory express protocol—best known for handling SSD speeds—is now offering full-blown support for traditional hard-disk drives.

This is quite unexpected because SSDs are orders of magnitude faster than traditional HDDs.
[ Read also: How to plan a software-defined data-center network ]
The first flash-based SSDs used SATA/SAS physical interfaces borrowed from existing hard drive-based enterprise server/ storage systems. However, none of these interfaces and protocols were designed for high-speed storage media and the SATA/SAS bus became a bottleneck for the much faster SSD.

To read this article in full, please click here
3:55
Weekly internet health check, US and worldwide
» ‎ Network World

Tags: [edit]

The reliability of services delivered by ISPs, cloud providers and conferencing services (a.k.a. unified communications-as-a-service (UCaaS)) is an indication of how well served businesses are via the internet.

ThousandEyes is monitoring how these providers are handling the performance challenges they face. It will provide Network World a roundup of interesting events of the week in the delivery of these services, and Network World will provide a summary here. Stop back next week for another update, and see more details here.

Get regularly scheduled insights by signing up for Network World newsletters

To read this article in full, please click here

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