lity/metrics/querying-metrics/>Prometheus</a></li></ul><p>By default, Istio defines and generates a set of standard metrics (e.g.
<code>requests_total</code>), but you can also customize them and create new metrics.</p><h2 id=custom-statistics-configuration>Custom statistics configuration</h2><p>Istio uses the Envoy proxy to generate metrics and provides its configuration in
the <code>EnvoyFilter</code> at
<a href=https://github.com/istio/istio/blob/release-1.16/manifests/charts/istio-control/istio-discover