Explore multi-cluster and multi-mesh patterns in this 32-minute conference talk by Christian Posta from Solo.io. Dive into the challenges and solutions for adopting service meshes across multiple clusters and meshes, including federating identity, unified observability, and policy development. Learn about different patterns such as flat network across pods, controlled gateways, and separate networks. Discover how Envoy serves as the backbone for multi-cluster communication federation, offering features like request hedging, retry budgets, and zone-aware routing. Examine various configurations including shared control planes with flat or separate networks, and separate control planes with separate networks. Gain insights applicable to Istio, Linkerd, and App Mesh implementations.