reviews</code> virtual service has a weight of 90% for the
<code>v1</code> subset.</p><p>This function is also helpful for other types of routing. For example, you can deploy
header-specific routing:</p><div><a data-skipendnotes=true style=display:none href=https://raw.githubusercontent.com/istio/istio/release-1.9/samples/bookinfo/networking/virtual-service-reviews-jason-v2-v3.yaml>Zip</a><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl apply -f @samples/bookinfo/networking/vir