Explore the buzz surrounding Cilium, CNCF's most widely adopted CNI, in this informative 31-minute conference talk. Dive into the bytecode behind Cilium's evolution from a simple networking CNI to a comprehensive solution covering observability and security. Learn about Cilium's core functionalities, including network policy, kube proxy replacement, and bandwidth management. Discover why and how Alibaba Cloud integrated Cilium as their CNI. Gain insights into the observability and security capabilities provided by Hubble and Tetragon. Explore Cilium's future direction and potential developments. Combining theoretical knowledge with hands-on production experience, acquire a strong understanding of Cilium's contributions to networking, observability, and security in cloud native environments.