policy decisions and extract
rich telemetry which can be sent to monitoring systems to provide information
about the behavior of the entire mesh.</p><p>The sidecar proxy model also allows you to add Istio capabilities to an
existing deployment without requiring you to rearchitect or rewrite code.</p><p>Some of the Istio features and tasks enabled by Envoy proxies include:</p><ul><li><p>Traffic control features: enforce fine-grained traffic control with rich
routing rules for HTTP, gRPC, WebSocket, and TCP t