I have been working in the telecom sector since the early days of fixed access networks, MPLS-based packet cores, GSM, 3G, 4G/LTE, and now the latest wave—5G & AI enhancement. A common question I hear from peers is: “What’s really new in 5G for voice calls, SMS, or even mobile apps?” The reality is that 5G’s true potential goes far beyond consumer voice and data services. While end-users will experience…
Month: September 2025
Deep Dive into Kubernetes Networking with Calico
In my previous blog http://bit.ly/4nwff22 , I explored how MACVLAN is implemented using Multus. Building on that foundation, let’s now dive deeper into the internals of Kubernetes networking. Coming from a background in Packet/MPLS data networks and telecom-grade IP networking, my perspective naturally aligns with telco-style architectures. Over the years, I’ve transitioned into cloud-native technologies, and this blog reflects how I analyze Kubernetes networking through the lens of a telecom…
Multus with MACVLAN in a Kubernetes Cluster
A hands-on walkthrough of installing Multus with MACVLAN, types of CNI, how MACVLAN works, and practical demo outputs. Contents My Lab Setup Installing Multus with MACVLAN Types of CNI Plugins How MACVLAN Works Static IPs Across Nodes Multus/NAD Error & Fix Creating the NetworkAttachmentDefinition Deploying Pods with MACVLAN Verification Benefits & Drawbacks of MACVLAN My Lab Setup I have a single master node and two worker nodes. The master manages the cluster, while…