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Category Archives for "Networking"

Practical Python For Networking: 4.3 – SMS Alerting – First Example – Video

This lesson walks through the first example script for setting up SMS alerting. Course files are in a GitHub repository: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s the founder of Network Automation Nerds and has written the books Mastering Python […]

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Privacy And Networking Part 2: Legal And Ethical Privacy

Given the arguments from the first article in this series, if privacy should be and is essential—what does the average network engineer do with this information? How does privacy impact network design and operations? To answer this question, we need to look at two other questions. First, what is private information, precisely? The network carries […]

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Practical Python For Networking: 4.2 – SMS Alerting – Python SDK And Environmental Variables – Video

This lesson describes how to install the Python SDK for Twilio so you can build SMS alerts. You can find the packages for this lesson in the GitHub repository that accompanies this course: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts/tree/master/4_Packages Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s […]

The post Practical Python For Networking: 4.2 – SMS Alerting – Python SDK And Environmental Variables – Video appeared first on Packet Pushers.

Everything Is Better with a GUI (even netsim-tools)

Some people think that everything is better with Bluetooth. They’re clearly wrong; according to the ancient wisdom of product managers working for networking vendors, everything is better with a GUI.

Now imagine adding network topology visualizer and GUI-based device access with in-browser SSH to an intent-based infrastructure-as-code virtual network function labbing tool. How’s that for a Bullshit Bingo winner1?

Read more …

Everything Is Better with a GUI (even netlab)

Some people think that everything is better with Bluetooth (or maybe it’s AI these days). They’re clearly wrong; according to the ancient wisdom of product managers working for networking vendors, everything is better with a GUI.

Now imagine adding network topology visualizer and GUI-based device access with in-browser SSH to an intent-based infrastructure-as-code virtual network function labbing tool. How’s that for a Bullshit Bingo winner1?

Read more …

Deloitte and VMware announce cloud-services practice

Consulting giant Deloitte has expanded its long-standing partnership with VMware to create the Deloitte VMware Distributed Cloud (DVDC) practice, designed to help clients moderninze their applications and migrate to the cloud.Monty Bhatia, vice president of Global Systems Integrators at VMware said via email there are no new services or products coming from the alliance, just the creation of the practice within Deloitte, which brings in existing capabilities from Deloitte with a broader portfolio of VMware Cross-Cloud services. [ Get regularly scheduled insights by signing up for Network World newsletters. ]To read this article in full, please click here

Creating a quick calculation function on Linux

Anytime you're planning to do a lot of calculations on a Linux system, you can use the power of bash to create a quick function and then use it repeatedly to do the calculations for you. In this post, we'll look at how this trick works and what you need to be aware of to ensure that your calculations are correct.Let's start with this mathematical function as an example:$ ? () { echo "$*" | bc ; } Troubleshooting your bash scripts in Linux   This command sets up a function that will pass the values and mathematical operators that you provide as arguments to the bc calculator command. Note that to call the function, you simply type a "?" followed by the arguments. In the first example below, the arguments are 1, followed by the multiplication character "*", followed by a 2, a "+" sign and a 3. The result is 5.To read this article in full, please click here

Creating a quick calculation function on Linux

Anytime you're planning to do a lot of calculations on a Linux system, you can use the power of bash to create a quick function and then use it repeatedly to do the calculations for you. In this post, we'll look at how this trick works and what you need to be aware of to ensure that your calculations are correct.Let's start with this mathematical function as an example:$ ? () { echo "$*" | bc ; } Troubleshooting your bash scripts in Linux   This command sets up a function that will pass the values and mathematical operators that you provide as arguments to the bc calculator command. Note that to call the function, you simply type a "?" followed by the arguments. In the first example below, the arguments are 1, followed by the multiplication character "*", followed by a 2, a "+" sign and a 3. The result is 5.To read this article in full, please click here

Microsoft shifts SONiC network operating system development to the Linux Foundation

The enhancement and adoption of SONiC, the open-source network operating system, could accelerate now that its development has been given over to the the Linux Foundation, experts say.Software for Open Networking in the Cloud had been overseen by Microsoft, which has now ceded that role to the Linux Foundation. [ Get regularly scheduled insights by signing up for Network World newsletters. ] The shift could result in the scale and use of the NOS grow as the foundation provides a trusted hub for over 450,000 developers to code, manage and advance open technology projects.To read this article in full, please click here

Microsoft shifts SONiC development to the Linux Foundation

The enhancement and adoption of SONiC, the open-source network operating system, could accelerate now that its development has been given over to the the Linux Foundation, experts say.Software for Open Networking in the Cloud had been overseen by Microsoft, which has now ceded that role to the Linux Foundation. [ Get regularly scheduled insights by signing up for Network World newsletters. ] The shift could result in the scale and use of the NOS grow as the foundation provides a trusted hub for over 450,000 developers to code, manage and advance open technology projects.To read this article in full, please click here

DMVPN vs MPLS VPN

DMVPN – Dynamic Multipoint VPN and MPLS VPN are two of the most popular VPN mechanisms. In this post, we will look at DMVPN vs MPLS VPN comparison, from many different aspects. At the end of this post, you will be more comfortable positioning these private VPN mechanisms.

DMVPN vs MPLS VPN

When we compare the two protocols, we look at many different aspects. For this comparison, I think very first we should say that DMVPN is a Cisco preparatory tunnel-based VPN mechanism but MPLS VPN is standard-based, RFC 2547, non-tunnel based VPN mechanism. Although, whether MPLS LSP is a tunnel or not is an open discussion in the networking community, we won’t start that discussion here again.

DMVPN and MPLS VPN over the Internet

Another important consideration for MPLS VPN vs DMVPN is, that DMVPN can be set up over the Internet but MPLS VPN works over private networks, Layer 2 or Layer 3 based private networks. DMVPN tunnels can come up over the Internet and inside the tunnels routing protocols can run to advertise the Local Area Networks subnets.

But MPLS requires Private network underlay.

DMVPNN vs MPLS

Figure – DMVPN Networks can run over Internet or Private Networks 

 

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How SASE uses AI

Secure access service edge, or SASE, combines networking and security into a cloud-based service, and it’s growing fast. According to Gartner projections, enterprise spending on SASE will hit almost $7 billion this year, up from under $5 billion in 2021. Gartner also predicts that more than 50% of organizations will have strategies to adopt SASE by 2025, up from less than 5% in 2020.To read this article in full, please click here

What is Ethernet?

Ethernet is one of the original networking technologies, having been invented nearly 50 years ago. And yet, because of the simplicity by which the communications protocol can be deployed and its ability to incorporate modern advancements without losing backwards compatibility, Ethernet continues to reign as the de facto standard for computer networking.At its core, Ethernet is a protocol that allows computers (from servers to laptops) to talk to each other over wired networks that use devices like routers, switches and hubs to direct traffic. Ethernet works seamlessly with wireless protocols, too.Its ability to work within almost any environment has led to its universal adoption around the world. This is especially true because it allows organizations to use the same Ethernet protocol in their local area network (LAN) and their wide-area network (WAN). That means that it works well in data centers, in private or internal company networks, for internet applications and almost anything in between. It can even support the most complex forms of networking, like virtual private networks (VPNs) and software-defined networking deployments.To read this article in full, please click here

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