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Category Archives for "Networking"

HTTP/3: the past, the present, and the future

HTTP/3: the past, the present, and the future

During last year’s Birthday Week we announced preliminary support for QUIC and HTTP/3 (or “HTTP over QUIC” as it was known back then), the new standard for the web, enabling faster, more reliable, and more secure connections to web endpoints like websites and APIs. We also let our customers join a waiting list to try QUIC and HTTP/3 as soon as they became available.

HTTP/3: the past, the present, and the future

Since then, we’ve been working with industry peers through the Internet Engineering Task Force, including Google Chrome and Mozilla Firefox, to iterate on the HTTP/3 and QUIC standards documents. In parallel with the standards maturing, we’ve also worked on improving support on our network.

We are now happy to announce that QUIC and HTTP/3 support is available on the Cloudflare edge network. We’re excited to be joined in this announcement by Google Chrome and Mozilla Firefox, two of the leading browser vendors and partners in our effort to make the web faster and more reliable for all.

In the words of Ryan Hamilton, Staff Software Engineer at Google, “HTTP/3 should make the web better for everyone. The Chrome and Cloudflare teams have worked together closely to bring HTTP/3 and QUIC from nascent standards to widely Continue reading

Volta Networks Virtualizes Routing on Edgecore White Boxes

Volta Networks aims to squeeze legacy vendors’ service provider business by bringing its virtual...

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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