istio.io/content/help/faq/distributed-tracing/how-distributed-tracing-works.md

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How does distributed tracing work with Istio?	0

Istio integrates with distributed tracing systems in two different ways: Envoy-based and Mixer-based tracing integrations. For both tracing integration approaches, applications are responsible for forwarding tracing headers for subsequent outgoing requests.

You can find additional information in the Istio Distributed Tracing (Jaeger, LightStep, Zipkin) Tasks and in the Envoy tracing docs.