Deep-Dive - Packet-level Debugging of Bridged and Non-bridged CNI Plugins

Dive into packet-level debugging of bridged and non-bridged CNI plugins in this 27-minute conference talk from KubeCon + CloudNativeCon. Explore the intricacies of troubleshooting Kubernetes connectivity issues through the lens of the Linux Network Stack. Learn how to use tcpdump effectively to trace packet trajectories, understand destination NAT'ing processes for different CNI plugins, and identify potential conflicts between network policies, routes, and iptables rules. Gain valuable insights into resolving complex networking challenges in Kubernetes environments, empowering DevOps teams to efficiently diagnose and solve connectivity problems without relying solely on networking teams.

Deep-Dive: Packet-level Debugging of Bridged and Non-bridged CNI Plugins - Jay Vyas & Sedef Savas