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Next Generation Cognitive Networking

Just a decade ago, public cloud titans Amazon Web Services and Microsoft Azure Cloud, became synonymous with elastic scaling, and software provisioning through APIs. This was a phenomenon that didn’t exist within closed legacy systems.

Private clouds, by contrast, saw the relevance of enterprise customers recreating an infrastructure based on public cloud principles operating at a smaller scale. In an ideal world, both clouds would allow application developers to create and choose where to deploy applications without trade-offs. Arista pioneered technology development in this cloud networking category and today with Covid-19 restrictions driving millions of users to work-from-home, there are tremendous pressures on network access and bandwidth.

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Arista Bakes AI Into WiFi Software

Cognitive WiFi provides visibility into WiFi users’ experience and initiates root cause analysis...

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Deploying IPv6 in Public Clouds is Easy

One of the hands-on exercises in our Networking in Public Cloud Deployments online course asks the attendees to deploy a full-blown virtual networking solution with a front-end (web) server in a public subnet, and back-end (database) server in a private subnet.

The next (optional) exercise asks them to add IPv6 to the mix for a full-blown dual-stack deployment.

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On Duplicates

Packet duplication wastes bandwidth and can lead to significant network performance degradation or even outages.

In multicast routing, packets are replicated by the network, so there is always a fundamental risk of duplicate traffic. Special safeguards exist to avoid …

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On this 50th Earth Day, We Are Using The Internet To Change The World

50 years ago when the first Earth Day happened, the networks that would later form the Internet were only beginning.

20 years later, when Earth Day 1990 turned the celebration into a global event, the World-Wide Web existed only as a single website in Switzerland.

Today, the Internet is our lifeline. In a world locked down by coronavirus, the Internet is how we connect. It is how we communicate, collaborate, and create together. It is how we work and how we play. And on this Earth Day 2020, we will use the Internet to celebrate the 50th anniversary.

Each and every day, we are using the Internet to respond to climate change and other environmental issues:

• Scientists are collaborating and sharing their knowledge. They are finding new solutions and creating new programs.
• Projects are crowdsourcing vast amounts of data from regular people around the world (ex. Earth Challenge 2020)
• We are sharing ideas and learning from each other.
• Policy makers are learning what works in other regions.
• We are avoiding unnecessary travel and reducing our carbon footprint.
• Activists are joining in global movements.
• We are seeing that what affects someone in one part of the world may affect us Continue reading

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Coding Packets the 11ty Edition

Last year I migrated codingpackets.com to a rails stack hosted on a digital ocean droplet. You can read about that here. I really love rails and was completely happy with that choice however, I am tired of managing infrastructure for what is essentially a static site. Therefore I decided...

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Coding Packets the 11ty Edition

The story of how and why I migrated codingpackets.com to 11ty.

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T-Systems Taps Juniper for Managed SD-WAN

Juniper claims its technology will provide customers with a cost-effective alternative to MPLS,...

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The GPU “Expanse”: HPC Acceleration for the Masses

In the early days of GPU-accelerated supercomputers, accelerators were installed with the mission of delivering ultra-high performance for a few select codes. …

The GPU “Expanse”: HPC Acceleration for the Masses was written by Nicole Hemsoth at The Next Platform.

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Daily Roundup: Cisco, Google SD-WAN Soars

Cisco, Google drove SD-WAN to the cloud; Commvault sued competitors Cohesity and Rubrik; and IBM...

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Glassdoor: COVID-19 hits 1 in 5 IT job openings in a single month

In the space of one month, the number of available IT jobs dropped by 20% across the U.S., according to the recruiting site Glassdoor, about on par with the avarage loss across all job oppenings.The data came from Glassdoor’s economic research unit and was part of a broader analysis of all U.S. industries. All told, the number of job openings between March 9 and April 6 dropped to 4.8 million, a 20.5% decline.[Get regularly scheduled insights by signing up for Network World newsletters.] Sixty percent of employers have reduced job openings since March 9, with almost one in four pulling all of their job postings.To read this article in full, please click here

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The Next IBM Platform, Revisited

When IBM announced that it was acquiring Red Hat for $34 billion eighteen months ago, one of the things we said that Big Blue needed most and would get from taking over – but not messing with – the world’s largest commercial open source software company was a coherent story that it could tell to its customers about how IBM, which more than any other company helped define data processing, was still relevant to the future. …

The Next IBM Platform, Revisited was written by Timothy Prickett Morgan at The Next Platform.

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Pulumi Supercharges Its Code Bridge

The vendor's 2.0 update includes testing and infrastructure provisioning capabilities that its CEO...

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Designing On-Prem Kubernetes Networks for High Availability

Designing and maintaining networks is hard.  When deploying Kubernetes in your on-prem data center, you will need to answer a basic question: Should it be an overlay network on top of an existing network, or should it be part of an existing network? The Networking options table provides guidelines to choose the right type of networking based on various factors. If you decide to use native peering (pre-dominant option for on-prem), you will have to configure the network to ensure availability in the event of network outage (ex. Cable disconnected, TOR switch failure etc.). We cover a typical L3 highly-available network design in this post.

A cluster spans multiple racks. In an L3 deployment, these racks have different CIDR ranges. So the nodes in different racks should be able to talk to each other. Referring to the diagram below, that traffic goes through the network fabric. If you want to build out such a lab for your own learning, here is the example.

If you have a leaf-spine fabric with a single TOR (top-of-rack, or leaf switch), then that TOR becomes a point of failure for the entire rack. If all the master nodes are on the same Continue reading

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SAP Axes 2-Headed CEO Structure

Long-time executive and short-time co-CEO Jennifer Morgan is set to leave the company on April 30....

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IBM Capped by COVID-19 Pandemic, Red Hat Helps

IBM CEO Arvind Krishna told financial analysts that “in the last few weeks we faced a shift in...

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Dell Combats COVID-19 With $9B Financing

The Payment Flexibility Program offers customers 0% interest financing with no down payment and up...

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Commvault Sues Cohesity, Rubrik for Patent Infringement

“The unauthorized use of our patented technology by Rubrik and Cohesity forces us to compete...

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Is enterprise security broken?

Deploying independent endpoint or network security separately is coming to a rapid – and much-needed -- end. If you want to stay secure longer-term, focus on unifying your security products now.

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Full Stack Journey 041: Talos Builds An Open-Source OS For Kubernetes

Today's Full Stack Journey examines the Talos open source project, which is aimed at building a fit-for-purpose OS designed expressly for running Kubernetes. My guests are Tim Gerla and Andrew Rynhard of Talos Systems. We discuss the goals of this project, the problems they aim to solve, and more.