 the labels mentioned
<a href=/v1.16/docs/reference/config/metrics/>here</a> are available in the generated metrics.
When the server workload is out of the mesh, server workload metadata is still
distributed to client sidecar, causing client side metrics to have server workload
metadata labels filled.</p></li><li><p><strong>TCP metadata exchange requires mTLS</strong>
TCP metadata exchange relies on the <a href=/v1.16/docs/tasks/observability/metrics/tcp-metrics/#understanding-tcp-telemetry-collection>Istio