).</p>
<pre><code class="language-yaml">apiVersion: networking.istio.io/v1
kind: DestinationRule
metadata:
  name: bookinfo-ratings
spec:
  host: ratings.prod.svc.cluster.local
  trafficPolicy:
    loadBalancer:
      simple: LEAST_REQUEST
  subsets:
  - name: testversion
    labels:
      version: v3
    trafficPolicy:
      loadBalancer:
        simple: ROUND_ROBIN
</code></pre>
<p><strong>Note:</strong> Policies specified for subsets will not take effect until
a route rule explicitly sends traffic to thi