I get asked this question all the time. It is indeed a great question. I previously posted an answer to this FAQ in 2017 – you can look at that here. I often point folks who ask to that post, but they claim it is ancient history. But is it? So I decided to not […]
If I want to get into Networking, what should I learn in 2025? Read More »
If you are new to Ansible, I suggest you read our article that defines Ansible, and shows you how to set up an Ansible lab environment to test and learn in. You can also read my article on real world use cases for Ansible right here. One of those use cases is Compliance Testing. Let’s
Two Ansible Network Compliance Examples Read More »
Load balancing in data networking is the process of distributing network traffic or workloads across multiple resources—such as servers, links, or devices—to: It’s commonly used in: Here is a structured list of the load balancing algorithms used in data networking, across Layer 4, Layer 7, and routing scenarios: 1. Round Robin 2. Weighted Round Robin
Load Balancing in Data Networks Read More »
Ansible is widely used in data networking for automating configuration, management, and compliance across diverse network devices. We published an article on what this tool is, and how you can set up a lab environment for learning this tool that you can read here. Here are real-world examples of Ansible use cases in data networking:
Real World Use Cases for Ansible in Networking Read More »
Here are my favorite books on the subject of IPv6 for reference and study. Please support us by selecting these links: Did I miss one? Let me know. Also, if you want to see my top 10 books for general networking – look here. Comments are welcomed below from registered users. You can also leave
IPv6 Books for Reference and Study Read More »
In this post, I want to document the fundamental algorithms built into TCP. Keep in mind that these have changed over time in an attempt to make TCP more effective with faster and larger capacity connections of todays Internet. See our post on TCP “versions” here. TCP uses several key algorithms to manage connection setup/teardown,
Hi everyone! As many of you who have attended my conference presentations and Wi-Fi classes know, I spend time talking about the correct way of troubleshooting Wi-Fi networks. Power cycling or rebooting is NOT a first step. Here’s why: lets say you are having issues of some kind (slow speed, connectivity issues, can’t reach certain
Our Comprehensive Wi-Fi Troubleshooting Guide Read More »
In this tutorial I am going to make you a pro at using and leveraging the Wireshark TCP Graphing tools. As many of you who have taken my Wireshark Courses know, I am a big fan of visualizing what is going on in a given packet capture or conversation. My #2 troubleshooting step is to
Zero to Hero with Wireshark TCP Graphs: A Tutorial Read More »
Below is a great TCP Analysis Flags Cheat Sheet for Wireshark. These are essentially Display Filters. They are all included in our TCP troubleshooting profile you can find here. Analysis Flags/Display filter Trigger Impact/Meaning/Notes tcp.analysis.ack_lost_segment A segment that is not in the trace has been acknowledged Indicates that not all packets have been recorded or a route has been flapped tcp.analysis.duplicate_ack The receiver
Wireshark TCP Analysis Flags Cheat Sheet Read More »
It’s graduation time. Congrats to all of you graduating!!! It seems that every year around this time someone will ask this great question. In my day, the answer was simple: none! Not anymore. If you’re interested in pursuing a degree in Network Engineering (what I call Network Science) and related technologies, several universities across the
Where can I get a degree in Network Engineering? Read More »
The following commands are like a cheat sheet of essential Windows repair commands. DO NOT USE THESE UNLESS YOU KNOW WHAT YOU ARE DOING. RESEARCH EVERY ONE OF THESE COMMANDS BEFORE EXECUTING. BACK UP YOUR SYSTEM PROPERLY. Command Purpose sfc /scannow Scans and Repairs corrupted or missing system files with the System File Checker (see
Windows Essential Repair Commands Read More »
Great question. The short answer is Yes – Starlink supports IPv6. Starlink is fully dual stack when it comes to IPv4 and IPv6 addressing. It is IPv6 capable and supports native IPv6 connectivity across all its routers, kit versions, and service plans. This includes the allocation of a /56 IPv6 prefix via DHCPv6 Prefix Delegation
Does Starlink Support IPv6? Read More »
Carrier-Grade NAT (CGNAT), also known as Large Scale NAT (LSN), is a network technology used by Internet Service Providers (ISPs) to extend the usability of the limited IPv4 address space by sharing a small pool of public IPv4 addresses among many customers. Why CGNAT Exists How CGNAT Works Technical Characteristics Challenges/Problems with CGNAT Alternatives to
Moore’s Law is an observation made by Gordon E. Moore, co-founder of Intel, in 1965. He noted that: The number of transistors on a microchip doubles approximately every two years, while the cost of computers is halved. This effectively meant exponential growth in computing power and a decrease in relative cost over time. So where
Was Moore Correct in “Moore’s Law”? Read More »
Ever wonder what it takes to network an industry showcase like ShowNet? ShowNet is a large-scale demonstration network built annually since 1994. It showcases cutting-edge networking technologies and provides stable internet connectivity throughout the exhibition floor. Over 400 engineers from academia and industry collaborate to design, deploy, and operate this network, utilizing over $80 million
What it Takes to Network ShowNet Read More »
