ng the visibility of destination rules in a particular namespace doesn&rsquo;t
guarantee the rule is used. Exporting a destination rule to other namespaces enables you to use it
in those namespaces, but to actually be applied during a request the namespace also needs to be
on the destination rule lookup path:</p><ol><li>client namespace</li><li>service namespace</li><li>the configured <code>meshconfig.rootNamespace</code> namespace (<code>istio-system</code> by default)</li></ol><p>For example, consider the