Folks dealing with micro-services would have probably heard about Mesh and how it has proved to be a critical component of the cloud native stack. Developers can focus on the business logic and communication capabilities can be achieved using Mesh.

Keys benefits we get from mesh are secure inter-service communication, traffic splitting, access control and observability.

Mesh is a mechanism build to manage communications, configure routing strategies (FQDN/Header based), helps configuring egress route timeouts, retries, building fail-over mechanism, etc between various individual services.

Istio is an open source implementation of Service Mesh developed by Google and internally works by deploying an extended version of Envoy as proxies to each micro-service.

What is Envoy ?It is an open source proxy designed for cloud native applications and in 2017 Envoy joined CNCF.
Envoy serves trillion of daily requests and has been adopted by thousands of renown organisations around the world.