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New: CI/CD in Networking Resource Page

Over the years I wrote a dozen blog posts describing various aspects of using CI/CD in network automation. These blog posts are now collected in the new CI/CD in Networking page that also includes links to related podcasts, webinars, and sample network automation solutions.

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Full Stack Journey 076: Going Deep On Public Key Infrastructure

We all use certificates and certificate authorities every day, so in episode 76 Scott takes a deep dive on Public Key Infrastructure (PKI) with Linda Ikechuwku of Smallstep Labs. We discuss how PKI and certificates work, revocation options, pros and cons of DIY PKI, and more.

The post Full Stack Journey 076: Going Deep On Public Key Infrastructure appeared first on Packet Pushers.

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Full Stack Journey 076: Going Deep On Public Key Infrastructure

We all use certificates and certificate authorities every day, so in episode 76 Scott takes a deep dive on Public Key Infrastructure (PKI) with Linda Ikechuwku of Smallstep Labs. We discuss how PKI and certificates work, revocation options, pros and cons of DIY PKI, and more.

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Arista embraces routing

Arista Networks has taken its first direct step into WAN routing with new software, hardware and services, an enterprise-class system designed to link critical resources with core data-center and campus networks.The package, called the Arista WAN Routing System ties together three new components—enterprise-class routing hardware, software for its CloudVision management platform called Pathfinder, and the ability to set up neutral peering points called Transit Hubs. This trio enables setting up carrier-neutral and cloud-adjacent facilities to provide self-healing and path-optimization links across core, aggregation, and cloud networking interconnects, according to Doug Gourlay, vice president and general manager of Arista’s Cloud Networking Software group in a blog about the new package.To read this article in full, please click here

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Arista embraces SD-WAN

Arista Networks has taken its first direct step into WAN routing with new software, hardware and services, an enterprise-class system designed to link critical resources with core data-center and campus networks.The package, called the Arista WAN Routing System ties together three new components—enterprise-class routing hardware, software for its CloudVision management platform called Pathfinder, and the ability to set up neutral peering points called Transit Hubs. This trio enables setting up carrier-neutral and cloud-adjacent facilities to provide self-healing and path-optimization links across core, aggregation, and cloud networking interconnects, according to Doug Gourlay, vice president and general manager of Arista’s Cloud Networking Software group in a blog about the new package.To read this article in full, please click here

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Oracle ties up with Nvidia to offer AI supercomputing service

Oracle is partnering with Nvidia to offer a new AI supercomputing service, dubbed DGX Cloud and available immediately, using Oracle Cloud Infrastructure's Supercluster.“OCI has excellent performance. They have a two-tier computing fabric and management network," Nvidia CEO Jensen Huang said during his keynote at the company’s annual GTC conference on Tuesday.Nvidia is working with other cloud providers to provide similar services, but Oracle is its first partner to go live with an offering. "Nvidia's CX7 along with Oracle’s non-blocking remote direct access memory (RDMA) forms the computing fabric," Huang said. "And Bluefield 3 will be the infrastructure processor for the management network. The combination is a state-of-the-art DGX AI supercomputer that can be offered as a multitenant cloud service.”To read this article in full, please click here

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Oracle ties up with Nvidia to offer AI supercomputing service

Oracle is partnering with Nvidia to offer a new AI supercomputing service, dubbed DGX Cloud and available immediately, using Oracle Cloud Infrastructure's Supercluster.“OCI has excellent performance. They have a two-tier computing fabric and management network," Nvidia CEO Jensen Huang said during his keynote at the company’s annual GTC conference on Tuesday.Nvidia is working with other cloud providers to provide similar services, but Oracle is its first partner to go live with an offering. "Nvidia's CX7 along with Oracle’s non-blocking remote direct access memory (RDMA) forms the computing fabric," Huang said. "And Bluefield 3 will be the infrastructure processor for the management network. The combination is a state-of-the-art DGX AI supercomputer that can be offered as a multitenant cloud service.”To read this article in full, please click here

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Are Network Operations Teams the Unsung Heroes of Security?

With IT teams overworked and understaffed, enterprises must embrace automation to ensure efficient and secure network operations.

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Protected: NSX Multi-Tenancy Journey

The post Protected: NSX Multi-Tenancy Journey appeared first on Network and Security Virtualization.

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Counting and modifying lines, words and characters in Linux text files

Linux includes some useful commands for counting when it comes to text files. This post examines some of the options for counting lines and words and making changes that might help you see what you want.Counting lines Counting lines in a file is very easy with the wc command. Use a command like that shown below, and you'll get a quick response.$ wc -l myfile 132 myfile What the wc command is actually counting is the number of newline characters in a file. So, if you had a single-line file with no newline character at the end, it would tell you the file has 0 lines,The wc -l command can also count the lines in any text that is piped to it. In the example below, wc -l is counting the number of files and directories in the current directory.To read this article in full, please click here

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Counting and modifying lines, words and characters in Linux text files

Linux includes some useful commands for counting when it comes to text files. This post examines some of the options for counting lines and words and making changes that might help you see what you want.Counting lines Counting lines in a file is very easy with the wc command. Use a command like that shown below, and you'll get a quick response.$ wc -l myfile 132 myfile What the wc command is actually counting is the number of newline characters in a file. So, if you had a single-line file with no newline character at the end, it would tell you the file has 0 lines,The wc -l command can also count the lines in any text that is piped to it. In the example below, wc -l is counting the number of files and directories in the current directory.To read this article in full, please click here

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Build Your K8s Environment For The Real World Part 1 – Day Zero Ops

When you’re designing a Kubernetes environment, whether it’s small or large, there are a few things that you must think about prior to writing the code to deploy the cluster or implementing the GitOps Controller for all of your Continuous Delivery needs. First, you must plan. Planning is the most important phase. In blog one […]

The post Build Your K8s Environment For The Real World Part 1 – Day Zero Ops appeared first on Packet Pushers.

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BrandPost: Wi-Fi Location-based Services: How Did We Get Here?

By: Dorothy Stanley, Fellow and Head, Wireless Standards Strategy, Aruba, a Hewlett Packard Enterprise company.Wi-Fi systems are so ubiquitous indoors that location-based services are a natural extension. Retail analytics, indoor navigation, and high-value asset tracking (such as medical devices in health care) are a just a few of the use cases that organizations are deploying using Wi-Fi location-based services to improve business outcomes. In this post, I’ll delve into the evolution of Wi-Fi location-based services and give you a preview of where the standards are taking us and how your organization can take advantage of them.To read this article in full, please click here

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Heavy Strategy 43 Is The IT Team In The Service, Project or Product Business

Differences between project (disruption, replacement), service (smooth, continuous) and product (updates, changes) mean that process and people have very different approach to technology management and operations.

The post Heavy Strategy 43 Is The IT Team In The Service, Project or Product Business appeared first on Packet Pushers.

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HS043 Is The IT Team In The Service, Project or Product Business

Differences between project (disruption, replacement), service (smooth, continuous) and product (updates, changes) mean that process and people have very different approach to technology management and operations.

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HPE to acquire OpsRamp to boost GreenLake capabilities

Hewlett Packard Enterprise (HPE) has announced its intent to acquire OpsRamp, an IT operations management (ITOM) services provider, for an undisclosed sum as it looks to boost its GreenLake capabilities.ITOM software and services are used to manage enterprise IT — monitoring capacity, performance and availability of infrastructure as well as computing, networking, and application resources.San Jose-headquartered OpsRamp, which was founded in 2014 by Raju Chekuri and Varma Kunaparaju, offers an AIOps platform that specializes in monitoring, automating and managing IT infrastructure, cloud resources, workloads and applications for hybrid and multicloud environments.  To read this article in full, please click here

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Modernizing the WAN from Client to Cloud

The evolution of WAN architectures has historically paralleled that of application architectures. When we primarily connected terminals to mainframes, the WAN architecture was largely point-to-point links connecting back to data center facilities. As traffic converged to remove OpEx-intensive parallel network structures, the WAN evolved to architectures that enabled site-to-site connectivity in a full mesh or configurable mesh and then enabled multi-tenancy for carrier cost optimization.

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External Links on Spine Switches

A networking engineer attending the Building Next-Generation Data Center online course asked this question:

What is the best practice to connect DC fabric to outside world assuming there are 2 spine switches in the fabric and EVPN VXLAN is used as overlay? Is it a good idea to introduce edge (border) switches, or it is better to connect outside world directly to the spine?

As always, the answer is “it depends,” this time based on:

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External Links on Spine Switches

A networking engineer attending the Building Next-Generation Data Center online course asked this question:

What is the best practice to connect DC fabric to outside world assuming there are 2 spine switches in the fabric and EVPN VXLAN is used as overlay? Is it a good idea to introduce edge (border) switches, or it is better to connect outside world directly to the spine?

As always, the answer is “it depends,” this time based on:

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The Networking RFCs: To read or not to read?

I see this question rather often asked on various social media. A post on Twitter a few days ago triggered this little blog post and I deeply appreciate the poster. The question was simple “Is it really necessary for an engineer to know or understand the key RFC numbers?”. Some of the engineers I work […]

The post The Networking RFCs: To read or not to read? appeared first on Packet Pushers.