Example Concept: A service mesh like Istio or Linkerd introduces a sidecar proxy alongside each microservice instance, which intercepts and manages all incoming and outgoing network traffic. This setup enables advanced traffic management features such as load balancing, retries, and circuit breaking, as well as security enhancements like mutual TLS authentication and end-to-end encryption. Additionally, it provides deep observability through metrics, logs, and tracing, facilitating better monitoring and troubleshooting of service interactions.