Here's a /26 — Figure Out the Address Plan
I handed GitHub Copilot a /26 subnet and told it to plan IP addressing for a two-switch iBGP fabric with spine uplinks. Then we deployed it. Here's what happened.
Eric Marquez
Hey Copilot, Can You SSH Into a Switch?
What happens when you point an AI at two factory-fresh SONiC switches and say 'figure it out' — a real-world experiment in AI-assisted network discovery.
EVPN and VRFs: The Security Architecture Your Data Center Actually Needs
How EVPN with VRF isolation extends from the physical fabric to the Windows Hyper-V virtual switch — and why it's a real security upgrade over VLANs.
What Are VRFs and How They Work
A practical, no-nonsense guide to Virtual Routing and Forwarding (VRF) for engineers who know networking but haven't clicked with VRFs yet.
Future-Proofing Your Fabric: How BGP Unnumbered Makes IPv6 a Config Change, Not a Redesign
BGP unnumbered already uses IPv6 under the hood. Adding IPv6 routes to your fabric is activating one address family — not redesigning your network.
BGP Unnumbered: The Network Simplification You Didn't Know You Needed
How BGP unnumbered with loopback peering simplifies spine-leaf fabric operations at scale.
Building nrecon-mcp: From Idea to Design in One Night
The origin story of nrecon-mcp — an open-source MCP server that lets GitHub Copilot SSH into network devices and explore them autonomously — designed entirely in a single Copilot conversation.
When Git Gaslights You: The Line Ending Betrayal
That moment when git reset --hard does nothing and files stay modified. A deep dive into solving the Git line ending mystery that haunts cross-platform teams.
The Traffic Cone Should Have Been a Warning
A travel nightmare that started with a traffic cone on a hockey rink.
PowerShell Get-Clipboard: The Windows Alternative to Mac's pbpaste
Learn about PowerShell's Get-Clipboard command - the Windows equivalent to Mac's pbpaste for clipboard management.