Capacity Planner Version 2.0 Released

Modern Wi-Fi networks are complex beasts. Despite all the fancy new features in products, the technology is only becoming more complex and the demands on the network are only growing. Wi-Fi is the most heavily used method to transport user data today, eclipsing cellular and LAN traffic volumes according to multiple reports from analysis firms including Cisco, Ofcom, Mobidia, Ovum, and others. Meanwhile, the technical complexity contained within the IEEE 802.11 standard results in a technical document that is over 3,200 pages long!  This means deploying a network right is no easy task.

One of the most difficult aspects to get right when deploying a Wi-Fi network is understanding capacity requirements. It is not sufficient enough to use rule-of-thumb guidelines based on number of clients per access point or number of access points per square foot/meter since they often result in networks that do not adequately meet actual end-user demands and perform poorly. More rigor is required while maintaining simplicity of use so that most network administrators can be confident of a successful outcome.

Essential to wireless network performance and capacity planning is understanding the interaction between access point capabilities, network configuration, client device capabilities, and the RF Continue reading

Tempered Networks makes it HIP to connect the unconnectable

IP networks were originally designed to be fairly simple. There’s a source and a destination address, and the network devices use this information to perform some fancy calculations—and magically, things connect. But as the internet has grown and more endpoints have been connected, networking has become a black magic. Since it’s impossible to give every device its own unique IP address, the clever folks at networking companies came up with an assortment of workarounds, such as being able to NAT (network address translation) non-routable, private addresses. And as we’ve added more dynamic environments, such as private and public cloud, defining policy based on addresses or ranges has become unsustainable. To read this article in full or to leave a comment, please click here

Tempered Networks makes it HIP to connect the unconnectable

IP networks were originally designed to be fairly simple. There’s a source and a destination address, and the network devices use this information to perform some fancy calculations—and magically, things connect. But as the internet has grown and more endpoints have been connected, networking has become a black magic. Since it’s impossible to give every device its own unique IP address, the clever folks at networking companies came up with an assortment of workarounds, such as being able to NAT (network address translation) non-routable, private addresses. And as we’ve added more dynamic environments, such as private and public cloud, defining policy based on addresses or ranges has become unsustainable. To read this article in full or to leave a comment, please click here

$10 off TP-Link AC1200 Wi-Fi Range Extender Powerline Edition – Deal Alert

The AC1200 is a wifi range extender that transmits its signal through your home wiring via your wall outlets, so walls and floors won't slow it down. Game online and watch HD movies in any room. The powerline adapter is simple to use -- it sets up in minutes, plugs into any power outlet, works with all routers, and up to 16 can be added to the same network, making it easy to expand your Wi-Fi across your home. Right now the price on this highly rated wifi extender will be reduced $10 to $99.99 in your shopping cart when you "clip" a special coupon.  See this deal now on Amazon.To read this article in full or to leave a comment, please click here

$10 off TP-Link AC1200 Wi-Fi Range Extender Powerline Edition – Deal Alert

The AC1200 is a wifi range extender that transmits its signal through your home wiring via your wall outlets, so walls and floors won't slow it down. Game online and watch HD movies in any room. The powerline adapter is simple to use -- it sets up in minutes, plugs into any power outlet, works with all routers, and up to 16 can be added to the same network, making it easy to expand your Wi-Fi across your home. Right now the price on this highly rated wifi extender will be reduced $10 to $99.99 in your shopping cart when you "clip" a special coupon.  See this deal now on Amazon.To read this article in full or to leave a comment, please click here

Transforming the Internet Society’s web presence

Have you struggled to find information on our current website? Have you found it difficult to know what actions you can take on important issues such as connecting the unconnected and building trust on the Internet?

You are not alone.

In one of the most visible and important changes we are making this year, we are working hard on giving our website a deep refresh.  We are building it to be a direct vehicle for action. We are redesigning it from the ground up to help us achieve our objective of connecting everyone, everywhere to a globally connected, trusted Internet. 

It will look different, it will feel different, it will be more accessible and will be more aligned with this strategic goal. 

James Wood

Multi-site Active-Active Solutions with NSX-V and F5 BIG-IP DNS

I’ve written several prior blogs on multi-site solutions with NSX-V discussing topics such as fundamentals, design options, multi-site security, and disaster recovery; see below links to review some of the prior material. In this post, I’ll discuss how VMware NSX-V and F5 BIG-IP DNS (prior known as F5 GTM) can be used together for Active/Active solutions where an application is spanning multiple sites and site-local ingress/egress for the application is desired. F5 offers both virtual and physical appliances; in this post I demonstrate using only the virtual (VE) F5 appliances. Big thanks to my friend Kent Munson at F5 Networks for helping with the F5 deployment in my lab and for providing some of the details to help with this blog post. This is the first of several blog posts to come on this topic.  Continue reading

All Of Ethan’s Podcasts And Articles For May 2017

Packet Pushers Community Blog

Packet Pushers News

Packet Pushers Weekly Podcast

Datanauts Podcast

Priority Queue Podcast

Citizens of Tech Podcast

Video

CentOS Atomic Host Customization Using cloud-init

Back in early March of this year, I wrote a post on customizing the Docker Engine on CentOS Atomic Host. In that post, I showed how you could use systemd constructs like drop-in units to customize the behavior of the Docker Engine when running on CentOS Atomic Host. In this post, I’m going to build on that information to show how this can be done using cloud-init on a public cloud provider (AWS, in this case).

Although I haven’t really blogged about it, I’d already taken the information in that first post and written some Ansible playbooks to do the same thing (see here for more information). Thus, one could use Ansible to do this when running CentOS Atomic Host on a public cloud provider. However, much like the original post, I wanted to find a very “cloud-native” way of doing this, and cloud-init seemed like a pretty good candidate.

All in all, it was pretty straightforward—with one significant exception. As I was testing this, I ran into an issue where the Docker daemon wouldn’t start after cloud-init had finished. Convinced I’d done something wrong, I kept going over the files, testing and re-testing (I’ve been working on this, off Continue reading

CentOS Atomic Host Customization Using cloud-init

Back in early March of this year, I wrote a post on customizing the Docker Engine on CentOS Atomic Host. In that post, I showed how you could use systemd constructs like drop-in units to customize the behavior of the Docker Engine when running on CentOS Atomic Host. In this post, I’m going to build on that information to show how this can be done using cloud-init on a public cloud provider (AWS, in this case).

Although I haven’t really blogged about it, I’d already taken the information in that first post and written some Ansible playbooks to do the same thing (see here for more information). Thus, one could use Ansible to do this when running CentOS Atomic Host on a public cloud provider. However, much like the original post, I wanted to find a very “cloud-native” way of doing this, and cloud-init seemed like a pretty good candidate.

All in all, it was pretty straightforward—with one significant exception. As I was testing this, I ran into an issue where the Docker daemon wouldn’t start after cloud-init had finished. Convinced I’d done something wrong, I kept going over the files, testing and re-testing (I’ve been working on this, off Continue reading

CentOS Atomic Host Customization Using cloud-init

Back in early March of this year, I wrote a post on customizing the Docker Engine on CentOS Atomic Host. In that post, I showed how you could use systemd constructs like drop-in units to customize the behavior of the Docker Engine when running on CentOS Atomic Host. In this post, I’m going to build on that information to show how this can be done using cloud-init on a public cloud provider (AWS, in this case).

Although I haven’t really blogged about it, I’d already taken the information in that first post and written some Ansible playbooks to do the same thing (see here for more information). Thus, one could use Ansible to do this when running CentOS Atomic Host on a public cloud provider. However, much like the original post, I wanted to find a very “cloud-native” way of doing this, and cloud-init seemed like a pretty good candidate.

All in all, it was pretty straightforward—with one significant exception. As I was testing this, I ran into an issue where the Docker daemon wouldn’t start after cloud-init had finished. Convinced I’d done something wrong, I kept going over the files, testing and re-testing (I’ve been working on this, off Continue reading

22% off APC Back-UPS 600VA 7-outlet Uninterruptible Power Supply (UPS) with USB Charging Port – Deal Alert

The new APC Back-UPS BE600M1 provides instant battery power to your critical electronics when the power goes out, keeping you connected and available both personally and professionally. Designed specifically to enhance the features that matter most to you, including more runtime, more battery backup outlets, and a USB port for charging convenience, the BE600M1 is also smaller and lighter than the previous model. APC's BE600M1 offers guaranteed surge and lightning protection for attached devices.  When the power goes out, the APC BE600M1 will power critical devices including home networking equipment; allowing you to maintain your internet connection. This allows you to work productively, avoid the loss of valuable data, and safely shut down equipment. It currently averages 4.5 out of 5 stars from over 4,400 people on Amazon (read reviews), where its list price of $74.99 has been reduced 22% to $58.73.To read this article in full or to leave a comment, please click here

22% off APC Back-UPS 600VA 7-outlet Uninterruptible Power Supply (UPS) with USB Charging Port – Deal Alert

The new APC Back-UPS BE600M1 provides instant battery power to your critical electronics when the power goes out, keeping you connected and available both personally and professionally. Designed specifically to enhance the features that matter most to you, including more runtime, more battery backup outlets, and a USB port for charging convenience, the BE600M1 is also smaller and lighter than the previous model. APC's BE600M1 offers guaranteed surge and lightning protection for attached devices.  When the power goes out, the APC BE600M1 will power critical devices including home networking equipment; allowing you to maintain your internet connection. This allows you to work productively, avoid the loss of valuable data, and safely shut down equipment. It currently averages 4.5 out of 5 stars from over 4,400 people on Amazon (read reviews), where its list price of $74.99 has been reduced 22% to $58.73.To read this article in full or to leave a comment, please click here

22% off APC Back-UPS 600VA 7-outlet Uninterruptible Power Supply (UPS) with USB Charging Port – Deal Alert

The new APC Back-UPS BE600M1 provides instant battery power to your critical electronics when the power goes out, keeping you connected and available both personally and professionally. Designed specifically to enhance the features that matter most to you, including more runtime, more battery backup outlets, and a USB port for charging convenience, the BE600M1 is also smaller and lighter than the previous model. APC's BE600M1 offers guaranteed surge and lightning protection for attached devices.  When the power goes out, the APC BE600M1 will power critical devices including home networking equipment; allowing you to maintain your internet connection. This allows you to work productively, avoid the loss of valuable data, and safely shut down equipment. It currently averages 4.5 out of 5 stars from over 4,400 people on Amazon (read reviews), where its list price of $74.99 has been reduced 22% to $58.73.To read this article in full or to leave a comment, please click here

Cumulus Linux and Ansible — now easier than ever

Back in November, Cumulus Networks unveiled NCLU, an interactive command-line interface for configuring switches running Cumulus Linux. NCLU was made to help networking experts drive Linux without having to learn its intricacies and quirks, and so far, it has been very successful. Network engineers are comfortable configuring devices interactively, so NCLU helps abstract the file-based nature of Linux to smooth out the learning curve.

Since I started working at Cumulus Networks over two years ago, I’ve noticed that most of our customers who are working with us for the first time fall neatly into two categories. The majority of our users are experienced network engineers with very little Linux knowledge, whereas a minority are Linux server power-users who may only know the basics of networking. Most of my colleagues at Cumulus are networking industry veterans who started off in the first category, while I fell into the latter. I’ve always been an automation-first developer who applies web-scale principles to everything I do, meaning that from the first day I started configuring Cumulus Linux, I was doing so with tools like Ansible. With the release of Ansible 2.3, I’m happy to report that Ansible now supports NCLU out of Continue reading

Worth Reading: These words should be banned

Client: “Our Big Data Rock Star ideated a cloud-based, scalable, native programmatic tool set that produced excellent learnings.” [Consultant]: “Well, it sounds like he took it to the next level … efforting 110% to craft a best practices, robust solution you can leverage, and it’s clearly out of the box thinking … but maybe you shouldn’t try to boil the ocean … it’s got a lot of moving parts and I’m not sure it’s something you want to take ownership of. … You might be accused of punching the puppy, so the optics are all wrong. We should probably put this in the parking lot.” —Shelly Palmer

The post Worth Reading: These words should be banned appeared first on rule 11 reader.

The problem with Linux packaging in large organizations

One of the challenges of implementing and utilizing Linux across a large organization—an organization where there are many different people with significantly different computing needs—is ... packaging.Seriously. Packaging is a big problem.Just as an example:Let's say you are in charge of IT for a 1,000-person organization. Your server needs dictate that you'll need (or at least likely want) a server-oriented Linux distribution with some sort of paid support contract. Easy enough. You can choose Red Hat Enterprise or SUSE Linux Enterprise. Server needs met.RELATED: Review: 5 open source alternatives for routers/firewalls But what about the marketing department? Does an enterprise-grade, server-focused distribution make sense for all of them? Probably not. Maybe you can standardize on one of the media production-focused distributions—or perhaps the community-driven sides of the enterprise distribution you already chose for your servers.To read this article in full or to leave a comment, please click here

IDG Contributor Network: Fashion meets technology: A new era in wearables evolution

Disclosure: I am employed by Qualcomm Technologies.Ten years from now, when we read about technology history, 2017 will be seen as a turning point in the evolution of wearables — when fashion met technology. Luxury brands used to think about novel fabrics, materials and designs when discussing technology advancements for their watches, glasses, hand bags and clothing. Now the minds behind the latest fashions consider the richness and responsiveness of their devices as well as the software user experience.Smartwatches are taking center stage in this convergence of style and technology. The arrival of fashion smartwatches began in 2015 with launches from such brands as Fossil, Michael Kors and Tag Heuer. This year, in the days leading up to Baselworld — the premier event for the world’s watch and jewelry industry, celebrating its 100th anniversary — we saw a plethora of smart timepiece announcements. At the show, there were smartwatch introductions from Diesel, Emporio Armani, Fossil, GC, Guess, Hugo Boss, Michael Kors, Misfit, Montblanc, Movado, Tag Heuer and Tommy Hilfiger.To read this article in full or to leave a comment, please click here

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