arted</a>), you need to
change the CA using one of the methods described in
<a href=/v1.8/docs/tasks/security/cert-management/>certificate management</a>. Changing the
CA typically requires reinstalling Istio. The installation instructions
below may have to be altered based on your choice of CA.</div></aside></div><h2 id=next-steps>Next steps</h2><p>You&rsquo;re now ready to install an Istio mesh across multiple clusters. The
particular steps will depend on your requirements for network and
control plane to