4     -          outbound      EDS
istio-egressgateway.istio-system.svc.cluster.local                               80        -          outbound      EDS
...
</code></pre><p>In order to debug Envoy you need to understand Envoy clusters/listeners/routes/endpoints and how they all interact.
We will use the <code>proxy-config</code> command with the <code>-o json</code> and filtering flags to follow Envoy as it determines where
to send a request from the <code>productpage</code> pod to the <code>reviews</code