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Archived IT - Networks Articles
23 Jun 2017
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What Is Intent-Based Networking? [64466]
Network World, June 23rd 2017

"Cisco this week jumped head first into the intent-based networking market, saying the technology that uses machine learning and advanced automation to control networks could be a major shift in how networks are managed.

But what exactly is intent-based networking?..."
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21 Jun 2017
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SDN Application Examples Emerge As Sdn Continues To Mature [64463]
SearchSDN, June 21st 2017

"SDN can benefit more than data centers and cloud. SDN application examples show service providers, hospitals and IoT networks are using the technology as it continues to mature.

The question of whether software-defined networking is valuable only as a way to manage cloud environments or data centers is a valid one. SDN discussions often focus solely on details of how SDN controls a cloud, or on its benefits compared to traditional network protocols. After reading these descriptions, it's easy to believe that SDN is applicable only to clouds and large data centers..."
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21 Jun 2017
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VDI Planning: The Network Perspective [64464]
NetworkComputing, June 21st 2017

"Make sure your network can support virtual desktops before deployment.

Virtual desktops can be a great way to easily deploy common desktop environments in a centrally managed way. But before you pull the trigger on a VDI rollout, you must look at all aspects of the infrastructure to determine if the network can support it. So often I hear conversations about VDI that focus on server hardware, licensing, and application integration. Yet very little time is spent investigating whether the network can support and scale the way VDI is designed to function.

In this blog, I'll look at VDI deployments from a network perspective and discuss out four key areas that could affect the usability of virtual desktops on day one or further down the road..."
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20 Jun 2017
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How WAN Design Is Changing [64462]
NetworkComputing, June 20th 2017

"Have you noticed that WAN design is changing? Well, I think it is, and I'd like to share my thoughts.

A little history

Old TDM networks used to be 'random' meshes of T1s, etc. Part of what drove the design was mileage-centric costs, so one would interconnect nearby sites and end up with a network that looked sort of like chicken wire fencing. Capacity planning was painful, as was multi-hops and latency. And the mesh-iness tended to aggregate traffic, thereby aggravating congestion and cost.

As Frame Relay then ATM came in, things gradually evolved to where they are today. We now tend to ignore distance, and just interconnect sites with MPLS or Metro Ethernet WAN 'clouds'..."
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13 Jun 2017
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9 Free Wi-Fi Stumbling And Surveying Tools [64252]
Network World, June 13th 2017

"Discover SSIDs, signal strength, channels, MAC addresses, security status and more...

Here are 9 tools that provide important details on known and unknown aspects of your Wi-Fi network. Each of these tools gives you the basic wireless details: SSIDs, signal strength, channels, MAC addresses and security status. Some can even reveal 'hidden' or non-broadcasted SSIDs, display the noise levels, or display statistics on successful and failed packets of your wireless connection. Two of the tools include Wi-Fi password cracking tools as well, useful for educational or penetration testing purposes..."
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12 Jun 2017
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Don't Be Left Behind by IPv6 deployment, ISOC Warns Enterprises [64273]
Network World, June 6h 2017

"Deployment of IPv6 is accelerating - but it's home and mobile users that are benefitting from the performance improvements first, a new report says ...

They have the resources, the expertise and, though they may not realize it, the need -- but it turns out that enterprises are often the ones that don't yet have IPv6.

That's the finding of the Internet Society its latest report on IPv6 deployment, published five years after the organization began a worldwide push to deploy the new addressing protocol and almost 20 years after the protocol was defined..."
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