Why Data Centers Are Suddenly Everywhere
All of these data centers are not showing up by accident. They are the physical response to a change in how the internet is used.
What is a hyperscaler? The 10,000 foot view
A hyperscaler is defined by its scale, control, and consistency, not by branding or marketing. These organizations build and run compute infrastructure
TCP-AO for BGP: What it is and what is does
TCP Authentication Option (TCP-AO) comes in. It is defined in RFC 5925 and exists to protect TCP sessions from spoofing and reset attacks.
BGP Traffic Engineering for Regional ISPs: Practical Control Without the Pain
Traffic rarely flows where you expect. BGP picks the “best” path, but that does not always mean the fastest or cheapest one.
Dust cover for Ethernet in outdoor or dusty environments
As many of you know, I have recently dove headfirst into the 3D printing world. One of the things I came across was these little “dust covers” for Ethernet. https://makerworld.com/en/models/2065227-ethernet-dust-cover The jury is still out on how much dust and the like these will keep out, but thats not the intriguing thing about them. Let’s … Read more
Cambium PMP Release 25.0 replaced by Release 25.0.1
From Cambium This email is to inform you that within the next ~24 hours, Cambium expects to release a new 25.0.1 as a replacement for 25.0. Cambium became aware of a longstanding issue for potential javascript execution on log pages. 25.0 was also discovered to have a bug with Technician level user access being allowed … Read more
The three pillars of Data Center design
For network engineers, data center design goes beyond switches and routers. The goal is to create an environment where failures are predictable and repeatable, not just to ensure basic functionality.
When Competence Is Unnoticed: Navigating the Phase of Professional Invisibility
Effective network engineering is intentionally unobtrusive. When systems remain stable, support tickets are not generated. If routing functions correctly, inquiries are absent. When redundancy operates as intended, disruptions are imperceptible.
Preseem Video from ISPAmerica 2026
In this interview, Dan discusses how Preseem helps wireless and fiber operators worldwide improve network quality of experience and streamline operations. The conversation covers how AI is being integrated into customer support roles to help non-technical staff handle complex tasks more effectively. Dan shares insights on current market trends for 2026, emphasizing AI’s natural application … Read more
BGP troubleshooting for the network operator
I recently wrote an article called “The Mess we call BGP. I received several questions about how I go about monitoring BGP and knowing how traffic flows. More importantly, to know when it goes wrong and how to deal with it. In this post, I will go over some of the philosophies, tools, and methods … Read more
My 49″ widescreen monitor experience
Being a geek, I am always looking for new ways to improve my setup. Most of what I work on these days are ISP networks. Over the years, I have tried many different monitor setups. The latest iteration of my setup has replaced my 34″ Acer curved widescreen and a dell side car rotated 90 … Read more
Interconnection, Peering, and Internet Exchanges: A Technical Deep Dive
If you’ve ever wondered how the capital I Internet actually works, you’re not alone! At its core, the Internet is a network of networks, and the way these networks connect has a big impact on the speed, cost, and reliability of our online lives. In this post, I’ll walk you through the basics of interconnection, … Read more