Network Engineering Manager | Architecting Resilient Backbone and Datacenter Solutions | 25+ years designing Internet edge, EVPN/VXLAN fabrics, and Segment Routing infrastructures. Creator of BGP Atlas (bgp-atlas.net).
Physical Layer
We need to talk about the most dangerous comfort blanket in enterprise IT: Dual Homing. If you spend enough time in this industry, you will eventually file a Root Cause Analysis for a total blackout on a "fully redundant" backbone. We do not talk about these incidents publicly.
Physical Layer
Your contract says you have two separate paths. Your routing table shows two distinct IS-IS adjacencies formed over independent circuits, with the LSDB confirming unique paths to the remote site. Your logical diagrams look flawless, and your auditor just happily checked the box for high availability. Then a guy in
Leadership
Following my recent piece on the Cook vs. Chef Paradox, many of you asked: "Herve, if the career ladder is broken, how do you actually build a kitchen that scales? How do you turn a junior into a Chef?" Management isn't about presiding over a dashboard;
Leadership
We keep saying we can't find "real" Network Engineers. We look for those who have a genuine passion for the "why" behind the packets, yet finding them has become incredibly difficult. Is the passion gone? I don't think so. I think the
Network Fundamentals
(The "Set and Forget" Trap That is Killing Your Uptime) We need to talk about the "dirty little secret" in many production networks: the static route. In the early days of a network build, they are seductive. They are easy to understand, quick to configure, and
DDoS Defense
The following blueprint is not a theoretical lab exercise or a "cloud-native" wish list. It is a methodology honed over years of managing a sovereign enterprise backbone where we own our Autonomous System (AS), our IPs, and our compute rather than relying on public cloud abstraction. This approach
DDoS Defense
A note before we begin: What follows is my perspective forged from decades of operational scars. It's not gospel - it's one engineer's hard-won opinion. Take what's useful to you and feel free to challenge the rest. I stood in the war