es a new request, it:</p><ol><li>buffers incoming requests</li><li>triggers the <strong>Autoscaler</strong></li><li>redirects requests to the application after it has been scaled up, including retries and load-balancing (if needed)</li></ol><p>Once the application is up and running again, Knative restores the routing from <strong>Activator</strong> to the running application.</p><h2 id=mixer-adapter>Mixer adapter</h2><p>Mixer provides a rich intermediation layer between the Istio components and infrastructu