📥 Go to to download your FREE 27-page roadmap today! 🌐 Visit for blog posts, networking tips, and to sign up for the newsletter. 📚 Coming soon: Full networking courses, labs, quizzes, PDFs, and more! 🟥 SUBSCRIBE: Unlock the full potential of OSPF with this deep dive into Multi-Area OSPF Deployment. In this tutorial, I simply explain how to design and configure a scalable OSPF network using multiple areas. Learn about OSPF Area Border Routers (ABRs), Autonomous System Boundary Routers (ASBRs), and how inter-area traffic flows through Area 0. We’ll walk through a practical configuration using router IDs and redistribution, and we'll interpret the resulting routing tables. 💬 Like, share, and subscribe for more simplified telecom and networking tutorials. Don't forget to hit the bell icon! ☑️ Chapter list: ============================================ 00:00 Intro 00:36 Anatomy of an OSPF Area 02:18 OSPF Area Rules 03:20 Preparing the Topology 04:12 OSPF Configuration 06:12 Verification 09:45 Summary 🟩 Related Videos and Links: =============================================== Basic OSPF configuration on Cisco IOS - OSPF Playlist - 🟦 About ============================================== Welcome to telecomTech, where telecom and networking technologies... are simply explained! I’m Lazarus, a telecom professional with over 25 years of experience in network design, architecture, and telecom technologies. Over my career, I’ve led major projects, trained professionals, and helped countless individuals earn certifications and advance their careers. My goal is to make networking and telecom concepts clear, practical, and engaging—the way I wish they were taught when I started learning! Whether you’re a student, a professional growing your skills, or you're preparing for certification exams such as Cisco, telecomTech is here to guide you. Every video is crafted to help you solve real-world challenges with confidence and curiosity. Join me as we explore telecom and networking as a lifelong passion, not just as a job. Let’s make this journey of growth and discovery together! #ospf #routing #multiarea #networking #telecomtech