On the ‘net: The Tradeoffs of Information Hiding

I recently joined Ethan Banks for a Packet Pushers episode around the trade offs of hiding information in the control plane. This was a terrific show; you can listen to it by clicking on the link below.

Today on the Priority Queue, we’re gonna hide some information. Oh, like route summarization? Sure, like route summarization. That’s an example of information hiding. But there’s much more to the story than that. Our guest is Russ White. Russ is a serial networking book author, network architect, RFC writer, patent holder, technical instructor, and much of the motive force behind the early iterations of the CCDE program.

BiB 047: Arrcus ArcOS Competes With Cisco, Juniper, Arista

Arrcus is a startup that’s built a modern network operating system for the disaggregated networking market. They are running on $15M of Series A funding, and as of 16-July-2018, they have emerged from stealth. In this briefing, Arrcus shared some of the details behind ArcOS, their core product offering.

The post BiB 047: Arrcus ArcOS Competes With Cisco, Juniper, Arista appeared first on Packet Pushers.

IDG Contributor Network: The 5 pillars of cloud data management

As more and more businesses adopt cloud services, seizing on the latest software tools and development methodologies, the lines between them are blurring. What really distinguishes one business from the next is its data.Much of the intrinsic value of a business resides in its data, but we’re not just talking about customer and product data, there’s also supply chain data, competitor data, and many other types of information that might fall under the big data umbrella. Beyond that there are a multitude of smaller pieces of data, from employee records to HVAC system logins, that are rarely considered, but are necessary for the smooth running of any organization. And don’t forget about source code. Your developers are using cloud-based repositories for version control of application code. It also needs to be protected.To read this article in full, please click here

Network Break 193: Broadcom Acquires CA; Intel Picks Up eASIC

Take a Network Break! Broadcom raised eyebrows with its $18.9 billion bid for CA Technologies, and Intel gets in the acquisition game by buying eASIC.

Viptela founders raise big bucks from VCs for a mysterious new venture, BP renews its interest in in-sourced IT, and ZTE moves closer to restarting major operations.

Tech support scammers leverage suspiciously accurate knowledge about Dell customers, PC sales are up, and Blue Origin says it will start taking customers to space in 2019.

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Show Links:

Broadcom Is Getting Desperate – Seeking Alpha

Broadcom: Crazy Like A Fox, Continue reading

Additive Loops with Ansible and Jinja2

I don’t know if “additive” is the right word, but it was the best word I could come up with to describe the sort of configuration I recently needed to address in Ansible. In retrospect, the solution seems pretty straightforward, but I’ll include it here just in case it proves useful to someone else. If nothing else, it will at least show some interesting things that can be done with Ansible and Jinja2 templates.

First, allow me to explain the problem I was trying to solve. As you may know, Kubernetes 1.11 was recently released, and along with it a new version of kubeadm, the tool for bootstrapping Kubernetes clusters. As part of the new release, the Kubernetes community released a new setup guide for using kubeadm to create a highly available cluster. This setup guide uses new functionality in kubeadm to allow you to create “stacked masters” (control plane nodes running both the Kubernetes components as well as the etcd key-value store). Because of the way etcd clusters work, and because of the way you create HA control plane members, the process requires that you start with a single etcd node, then add the second node, and Continue reading

Converting and manipulating image files on the Linux command line

Most of us probably know how wonderful a tool Gimp is for editing images, but have you ever thought about manipulating image files on the command line? If not, let me introduce you to the convert command. It easily coverts files from one image format to another and allows you to perform many other image manipulation tasks as well -- and in a lot less time than it would take to make these changes uses desktop tools. Let's look at some simple examples of how you can make it work for you.Converting files by image type Coverting an image from one format to another is extremely easy with the convert command. Just use a convert command like the one in this example:To read this article in full, please click here

Taking the temperature of IoT for healthcare

The Internet of Things (IoT) is full of promises to transform everything from transportation to building maintenance to enterprise security. But no field may have more to gain than the healthcare industry. Healthcare providers and device makers are all looking to the IoT to revolutionize the gathering of healthcare data and the delivery of care itself.But while many of those benefits are already becoming reality, others are still on the drawing board. Two very different IoT healthcare stories crossed by desk this month — taken together they provide a surprisingly nuanced picture of healthcare IoT.[ For more on IoT, see tips for securing IoT on your network and our list of the most powerful internet of things companies. | Get regularly scheduled insights by signing up for Network World newsletters. ] Smart bandages still in prototype First, I was excited to hear about the development of advanced prototypes of “smart bandages.” Developed by researchers at Tufts University using flexible electronics, these smart bandages not only monitor the conditions of chronic skin wounds, but they also use a microprocessor to analyze that information to electronically deliver the right drugs to promote healing. By tracking temperature and pH of Continue reading

The Week in Internet News: Startup Finds a Way to Glue Fiber to Roadways

Why don’t we glue it in the road? A technology startup has patented a way to integrate broadband fiber to blacktop, reports Motherboard. The patented technique, inspired by dentistry, uses a blend of resins to stick fiber optic cables to roads.

Major spending to fix IoT security: The Internet of Things security market will grow to US$6 billion by 2023, with spending to rise 300 percent between 2018 and 2023, according to Juniper Research. However, poor long-term device support and little fear of ramifications will keep security spending on connected homes lagging behind other markets, the research firm says.

Data breaches cost big bucks: The average cost of a data breach is $3.86 million, up more than 6 percent from last year, according to a study from IBM and the Ponemon Institute. Compromised organizations took 197 days to identify a breach and an additional 69 days to contain it, reports IT Pro. A data breach cost organizations an average of $148 per lost or stolen record.

AI takes over the world: About three-quarters of all consumers have interacted with artificial intelligence systems, reports ComputerWeekly.com. A Capgemini survey of 10,000 consumers found, however, that more than half of consumers prefer Continue reading

Free Webinars and Videos Are Now Easier to Spot

Another summer break project: replacing the stars next to webinar names in descriptions of various technology areas (example: Data Center) with something more useful. Turns out that marking the webinar title as being Free or having Free items works really well.

Bonus feature: clicking on show free content shows you the content available with free subscription.

During the summer break, I’m publishing blog posts about the projects I’m working on. Regular blog posts will return in autumn.

Extreme faces challenges, girds for future networking battles

Extreme Networks is contending for greater influence from the data center to the network edge, but it has some obstacles to overcome.The company is still grappling with how to best integrate, use and effectively sell the technologies it has acquired from Avaya and Brocade in the past year, as well as incorporate and develop its own products to do battle in the cloud, mobile and edge computing environments of the future. Remember, too, that Extreme bought wireless player Zebra Technologies in 2016 for $55 million.[ Now see: The hidden cause of slow internet and how to fix it.] In terms of results that Wall Street watches, Extreme Networks grew revenue 76% to $262 million in its recent fiscal third quarter. According to Extreme, those gains were fueled mostly by growth from its acquisitions and around an 8% growth in its own products. To read this article in full, please click here

Extreme faces challenges, girds for future networking battles

Extreme Networks is contending for greater influence from the data center to the network edge, but it has some obstacles to overcome.The company is still grappling with how to best integrate, use and effectively sell the technologies it has acquired from Avaya and Brocade in the past year, as well as incorporate and develop its own products to do battle in the cloud, mobile and edge computing environments of the future. Remember, too, that Extreme bought wireless player Zebra Technologies in 2016 for $55 million.[ Now see: The hidden cause of slow internet and how to fix it.] In terms of results that Wall Street watches, Extreme Networks grew revenue 76% to $262 million in its recent fiscal third quarter. According to Extreme, those gains were fueled mostly by growth from its acquisitions and around an 8% growth in its own products. To read this article in full, please click here

Extreme faces challenges, girds for future networking battles

Extreme Networks is contending for greater influence from the data center to the network edge, but it has some obstacles to overcome.The company is still grappling with how to best integrate, use and effectively sell the technologies it has acquired from Avaya and Brocade in the past year, as well as incorporate and develop its own products to do battle in the cloud, mobile and edge computing environments of the future. Remember, too, that Extreme bought wireless player Zebra Technologies in 2016 for $55 million.[ Now see: The hidden cause of slow internet and how to fix it.] In terms of results that Wall Street watches, Extreme Networks grew revenue 76% to $262 million in its recent fiscal third quarter. According to Extreme, those gains were fueled mostly by growth from its acquisitions and around an 8% growth in its own products. To read this article in full, please click here

IETF 102, Day 1: IETF arrive à Montréal

Tomorrow sees kickoff of the Working Groups sessions at IETF 102 in Montreal, Canada, we’re bringing you daily blog posts highlighting the topics of interest to us in the ISOC Internet Technology Team. Monday is an important day, with meetings of the TLS, 6MAN and SIDROPS Working Groups, along with two other IoT related groups.

6MAN commences at 09.30 EDT/UTC-4, and has six new drafts up for discussion covering IPv6 Neighbor Discovery Extensions for Prefix Delegation, IPv6 VPNs, ICMPv6, OAM in Segment Routing Networks with an IPv6 Data plane, allowing low or zero valid lifetimes to be accepted in Router Advertisement Prefix Information Options where it’s known that there can only be one router on the link; as well as introducing a new IPv6 ‘unrecognised’ option for ICMPv6 that conveys whether an underlying network can transmit IPv6 packets.

There are also three working group sponsored drafts, adopted from the last meeting. Privacy Extensions for Stateless Address Autoconfiguration in IPv6 describes an extension that causes nodes to generate global scope addresses from interface identifiers that change over time; IPv6 Segment Routing Header specifies how a node can steer a packet through a controlled set of instructions (segments) by prepending an SR header Continue reading

Cerberus For Schema Validation

Cerberus is a lightweight python library that can be used to validate the correct data is being supplied to configuration management tools such as Ansible and Salt or perhaps even Jinja directly. Along with having many useful built in features, Cerberus also makes it relatively straight...
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