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Category Archives for "Networking"

Hey Dropbox, I Don’t Want The Bloat. Or the Constant Ads.

TL-DR: Dropbox is harassing me about new products. Combined with poor performance of their bloated app and enormous waisting of my disk space, I’m getting close to quitting. I want to use Dropbox to synchronise files between my various devices aka desktop, laptop, tablet and smartphone for quite some time. I like it enough to […]

The post Hey Dropbox, I Don’t Want The Bloat. Or the Constant Ads. appeared first on EtherealMind.

Upcoming Events and Webinars (October 2019)

The autumn 2019 webinar season is in full swing ;) We’re almost done with Azure Networking webinar (the last session will take place on October 10th) and the network automation course is nicely chugging along – a few weeks ago Matthias Luft talked about supply-chain security in open-source software and today we’ll enjoy the start with a single source of truth presentation by Damien Garros.

Dinesh Dutt is coming back on October 8th with another installment of EVPN saga, this time focused on running EVPN on Linux hosts, and on October 22nd Donald Sharp will tell us all about the underlying magic box – the Free Range Routing software.

But there are even more open-source goodies waiting for you: on October 15th we’ll have Pete Lumbis describing the new features Cumulus Linux got in the last year, including AutoBGP and AutoMLAG.

Most everything I mentioned above apart is accessible with Standard ipSpace.net Subscription, and you’ll need Expert Subscription to enjoy the automation course contents.

Enterprises tap edge computing for IoT analytics

IoT needs edge computing. The world is on pace to hit 41.6 billion connected IoT devices generating 79.4 zettabytes of data in 2025, according to research firm IDC. To make the most of that data, enterprises are investing in compute, storage and networking gear at the edge, including IoT gateways and hyperconverged infrastructure.To read this article in full, please click here

Matt Oswalt – Portfolio

Short Bio Matt Oswalt hails from Portland, OR, and focuses on the intersection of network infrastructure, automation, systems, and software engineering. He’s passionate about enabling engineers to evolve their careers to the next level, and sharing the bright spots that exist within the technology industry with the masses. You can often find him speaking at conferences or meetups about these topics, as well as writing about them on his blog (https://keepingitclassless.

The Bookshelf

I am a big fan of Audible for books. Every once in a while I have time and patience to read a physical book, but often times I find myself needing to do things like washing dishes, going on a long walk or drive, and Audible has made it so much easier for me to get back into “reading”. Since I started doing this, I’d like to share the books that I’ve been able to get through this way.

LF Edge Sharpens Its Focus With Baetyl, Fledge

China's Baidu donated the Baetyl seed code, while Dianomic contributed Fledge.

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EVPN-PIM: Anycast VTEPs

This is the second of the two part EVPN-PIM blog series exploring the feature and network deployment choices. If you missed part one, learn about BUM optimization using PIM-SM here.

Anycast VTEPs

Servers in a data-center Clos are typically dual connected to a pair of Top-of-Rack switches for redundancy purposes. These TOR switches are setup as a MLAG (Multichassis Link Aggregation) pair i.e. the server sees them as a single switch with two or more bonded links. Really there are two distinct switches with an ISL/peerlink between them syncing databases and pretending to be one.

The MLAG switches (L11, L12 in the sample setup) use a single VTEP IP address i.e. appear as an anycast-VTEP or virtual-VTEP.

Additional procedures involved in EVPN-PIM with anycast VTEPs are discussed in this blog.

EVPN-PIM in a MLAG setup vs. PIM-MLAG

Friend: “So you are working on PIM-MLAG?”
Me: “No, I am implementing EVPN-PIM in a MLAG setup”
Friend: “Yup, same difference”
Me: “No, it is not!”
Friend: “OK, OK, so you are implementing PIM-EVPN with MLAG?”
Me: “Yes!”
Friend: “i.e. PIM-MLAG?”
Me: “Well, now that you put it like that….……..NO, I AM NOT!! Continue reading

BrandPost: How many bytes to the gallon? The data challenge of autonomous vehicles

A few years ago, a blind man rode in a car in Austin, Texas. Normally, such a trip would not make national headlines. However, this blind man was alone in the car. That might sound like the set up for a joke, but it’s actually a pointer toward the future. The car was one of Google’s self-driving cars. After the ride, the gentleman exited the vehicle and entered history.That’s just one story in a never-ending stream of prognostication, commentary and “gee whiz” quips about the coming era of autonomous vehicles (AV). AVs are burning rubber in media of all kinds (you can find video of the blind man’s spin around the block here). Some of these stories address concerns about AVs and I don’t mean to discount them. Yet, AVs have an air of inevitability about them, don’t they? It’s not a question of “if” it happens, but “when.”To read this article in full, please click here

Oracle Slashes Data Cloud Workforce

Oracle reportedly cut 10% to 15% of its Data Cloud business unit this week amid its ongoing...

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Alibaba Unsheaths AI Chip, Goes Head-to-Head With AWS, Google

Alibaba said it developed a new chip for AI inference that speeds up machine learning tasks on its...

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CloudGenix SD-WAN Arrives On Hypercore Networks

In a win for CloudGenix, Hypercore Networks today announced a partnership with the SD-WAN vendor to...

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Follow the Yellowbrick Data Road to Cloud Warehousing and DR

With the addition of its cloud offerings, Yellowbrick offers enterprise customers a platform to run...

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Qualcomm Waxes 5G Vision, Downplays Early Challenges

Qualcomm showcased its long history of innovation in wireless technology and contends that it’s...

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How a simpler mmWave architecture can connect IoT

Current wireless technologies, such as Wi-Fi, won’t provide enough support for the billions of internet of things (IoT) sensors and networks that are expected to come on stream in the next few years, say researchers. More speed, efficiency and bandwidth will be needed. Plus, the equipment must cost significantly less than existing gear, including upcoming 5G equipment.To address the issue, scientists at University of Waterloo are developing a stripped-down version of millimeter wave technology.“A growing strain will be placed on requirements of wireless networks,” the researchers say in an article announcing a new low-power, low-cost 5G network technology that it calls mmX. They say the technology is specifically geared towards IoT.To read this article in full, please click here

Network Neighborhood: Corporate Communications And The IT Community With Dana Iskoldski

On today's Network Neighborhood we talk with Dana Iskoldski, Corporate Communications Manager at BlueCat Networks. We discuss the role of corporate comms in tech, how the position straddles marketing and community engagement, and how Dana grapples with the natural skepticism of engineers.

The post Network Neighborhood: Corporate Communications And The IT Community With Dana Iskoldski appeared first on Packet Pushers.

Host, Docker, Swarm and Kubernetes monitoring

The open source Host sFlow agent incorporates technologies that address the challenges of microservice monitoring; leveraging recent enhancements to Berkeley Packet Filter (BPF) in the Linux kernel to randomly sample packets, and  Asynchronous Docker metrics to track rapidly changing workloads. The continuous stream of real-time telemetry from all compute nodes, transported using the industry standard sFlow protocol, provides comprehensive real-time cluster-wide visibility into all services and the traffic flowing between them.

The Host sFlow agent is available as pre-packaged rpm/deb files that can be downloaded and installed on each node in a cluster.
sflow {
collector { ip=10.0.0.70 }
docker { }
pcap { dev=docker0 }
pcap { dev=docker_gwbridge }
}
The above /etc/hsflowd.conf file, see Configuring Host sFlow for Linux via /etc/hsflowd.conf, enables the docker {} and pcap {} modules for detailed visibility into container metrics and network traffic flows, and streams telemetry to an sFlow collector (10.0.0.70). The configuration is the same for every node making it simple to install and configure Host sFlow on all nodes using orchestration software such as Puppet, Chef, Ansible, etc.

The agent is also available as the pre-build sflow/host-sflow image, Continue reading

Empowering More Gretas: Introducing the 2019 IGF Youth Ambassadors

When 16-year-old Swedish environmental activist Greta Thunberg burst onto the global scene a few months ago, people underestimated the power this young girl would have to raise awareness and rally the world around climate change. Today, she has become a fearless advocate, boldly speaking out and holding politicians to account for their lack of action on the climate crisis. We need more Gretas.

And they’re out there.

We’re proud to introduce 30 young changemakers who make up the 2019 cohort of the Internet Society’s IGF Youth Ambassadors Program. The group is made up of 15 women and 15 men from 21 countries. This cadre of young leaders are working on many of the pressing issues affecting the Internet globally.

In November, they’ll bring their drive for change to Berlin, Germany, to take part in the Internet Governance Forum (IGF). This is an annual multistakeholder forum for inclusive policy dialogue on shared principles, procedures, and programs that shape the evolution and use of the Internet. Although not an official decision-making body, the IGF remains an important forum. Many of the world’s experts in and advocates for the Internet gather there for discussion, networking, research sharing, and best practices from around the Continue reading

WARP is here (sorry it took so long)

WARP is here (sorry it took so long)
WARP is here (sorry it took so long)

Today, after a longer than expected wait, we're opening WARP and WARP Plus to the general public. If you haven’t heard about it yet, WARP is a mobile app designed for everyone which uses our global network to secure all of your phone’s Internet traffic.

We announced WARP on April 1 of this year and expected to roll it out over the next few months at a fairly steady clip and get it released to everyone who wanted to use it by July. That didn’t happen. It turned out that building a next generation service to secure consumer mobile connections without slowing them down or burning battery was… harder than we originally thought.

Before today, there were approximately two million people on the waitlist to try WARP. That demand blew us away. It also embarrassed us. The common refrain is consumers don’t care about their security and privacy, but the attention WARP got proved to us how wrong that assumption actually is.

This post is an explanation of why releasing WARP took so long, what we've learned along the way, and an apology for those who have been eagerly waiting. It also talks briefly about the rationale for why we Continue reading