🔹 "The pod’s fine."
🔹 "DNS works."
🔹 "Still… something’s wrong."

Sound familiar?

This article takes you through a modern, layered walk of Kubernetes networking — from Pod IPs to eBPF, from CNI to Ingress, and everything in between.

What you'll get:

• 🚦 How Pods get their IPs (and what to check when they don't)
• 🧱 CNI plug-ins compared: Calico, Cilium, Flannel, Multus, and more
• 🌐 Gateway API vs Ingress — what's replacing what
• 🔒 Service Mesh options that won’t melt your CPU
• 🛠️ My go-to checklist for debugging 90% of network issues in production

No fluff, no jargon — just tools, diagrams (if you want), and lived-through production advice.

📖 Read the deep dive here: https://medium.datadriveninvestor.com/follow-the-packet-a-2025-deep-dive-into-kubernetes-networking-layers-643c712f6e7b