Explore the foundations of routing and switching in scalable network infrastructures through this 16-minute conference talk. Delve into Layer 2 networking technologies and Layer 3 routing protocols, understanding their synergy and advanced concepts. Examine security considerations in network design and industry applications of these technologies. Discover future trends in networking, including automation and AI integration, as well as evolving security trends. Gain valuable insights and key takeaways for building robust and scalable network infrastructures in modern computing environments.