s>Extension providers</h2><p><a href=/v1.24/docs/reference/config/istio.mesh.v1alpha1/#MeshConfig-ExtensionProvider>Extension providers</a> are defined in <code>MeshConfig</code>, and allow defining the configuration for a trace backend. Supported providers are OpenTelemetry, Zipkin, SkyWalking, Datadog and Stackdriver.</p><h2 id=building-applications-to-support-trace-context-propagation>Building applications to support trace context propagation</h2><p>Although Istio proxies can automatically send spans, ex