Cisco Nexus 9516 data center switch aces a grueling high-density stress test

Cisco Nexus 9516 data center switch aces a grueling high-density stress test
How many ports are enough at the core of the data center? How does 1,024 sound?That’s the configuration we used to assess Cisco Systems’ Nexus 9516 data center core switch. In this exclusive Clear Choice test, we assessed the Cisco data center core switch with more than 1,000 50G Ethernet ports. That makes this by far the largest 50G test, and for that matter the highest-density switch test, Network World has ever published.As its name suggests, the Nexus 9516 accepts up to 16 N9K-X9732C-EX lin…
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Top network monitoring software and visibility tools

Top network monitoring software and visibility tools
Networking performance monitoring and diagnostics (NPMD) software, whether running as an independent appliance or embedded in networking equipment, can help stave off productivity issues for internal corporate users as well as those interacting with the network from the outside.But with ever-increasing traffic on corporate networks, users attempting to optimize connections to the cloud and new Internet of Things devices bombarding the network, enterprises and network performance monitoring vend…
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What SDN is and where it’s going?

What SDN is and where it’s going?
Forrester analyst Andre Kindness says a lot of clients ask him how they should think about software-defined networking (SDN), which has been heralded for years as the next great thing in the industry.SDN – which is an architecture approach, not a specific product - has traditionally been thought of as virtualizing data center networks. This typically means separating the management of the control plane of network devices from the underlying data plane that forwards network traffic. Using a sof…
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Bluetooth devices could soon have mesh networking capabilities

Bluetooth devices could soon have mesh networking capabilities
Bluetooth is about to get some significant new mesh networking capabilities -- and the best bit is, you may not need new hardware to benefit from them.Mesh networking will make it simpler to connect sensors across industrial sites, or to create smart home or building automation networks. Rather than wasting energy shouting to be heard by a distant gateway, devices will be able to whisper to their neighbors, asking them to pass messages.It will offer a new way for devices to join the Internet of…
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Predictive analytics: Your key to preventing network failures

Predictive analytics: Your key to preventing network failures
Identifying and pinpointing potential network failures and performance issues has long been a matter of educated guesswork, but an emerging generation of predictive analytics tools promises to bring greater accuracy to network reliably forecasts, allowing staff to address and remedy specific issues even before they can even begin affecting network operations.Predictive analytics is a game-changer, giving CIOs the ability to literally look into the future. "There is a growing need for networks t…
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Cisco's M5 UCS servers take intent-based approach to data center

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It's not the server -- it's the system. That's the word from Cisco as it rolls out its new, M5 generation Unified Computing System rack and blade servers, triggered by Intel's release of the Xeon Scalable Processor platform.Cisco's new servers use the Xeon Scalable processors -- unveiled Tuesday in New York -- to fuel performance as well as increase server density and throughput.  But the value in the UCS product family lies in how the hardware works with configuration management and optimizati…
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What is hyperconvergence?

What is hyperconvergence?
Hyperconvergence is an IT framework that combines storage, computing and networking into a single system in an effort to reduce data center complexity and increase scalability. Hyperconverged platforms include a hypervisor for virtualized computing, software-defined storage, and virtualized networking, and they typically run on standard, off-the-shelf servers. Multiple nodes can be clustered together to create pools of shared compute and storage resources, designed for convenient consumption. T…
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Intel tightens data-center grip with Xeon Scalable Processor platform

Intel tightens data-center grip with Xeon Scalable Processor platform
Make no mistake: Intel's Xeon Processor Scalable Family, based on the company's Skylake architecture, is about much more than revving up CPU performance. The new processor line is essentially a platform for computing, memory and storage designed to let data centers -- groaning under the weight of cloud traffic, ever-expanding databases and machine-learning data sets -- optimize workloads and curb operational costs.In order to expand the market for its silicon and maintain its de facto processor…
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What’s the difference between SDN and NFV?

What’s the difference between SDN and NFV?
What’s the difference between SDN and NFV? | ITworld Thank youYour message has been sent.SorryThere was an error emailing this page. Credit: Thinkstock ");});try{$("div.lazyload_blox_ad").lazyLoadAd({threshold:0,forceLoad:false,onLoad:false,onComplete:false,timeout:1500,debug:false,xray:false});}catch(exception){console.log("error loading lazyload_ad "+exception);}}); SDN, NFV & VNF are among the alphabet soup of terms in the networking industry that have emerged in rece…
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Does MU-MIMO really expand Wi-Fi system capacity?

Does MU-MIMO really expand Wi-Fi system capacity?
MU-MIMO enables multiple client stations to receive unique but simultaneous transmissions from a single access point (AP).Until this advance, each associated station had to wait its turn via the normal contention process and subject to whatever vendor class/quality-of-service mechanisms might be implemented, available, and applied in a given installation.Importantly, most clients, and especially highly mobile clients like handsets and tablets, are typically limited to only one or two MIMO stre…
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