>$ istioctl dashboard prometheus</code></pre><p>In Prometheus, you can view the values for the TCP metrics. First, select Graph and enter the a metric such as: <code>istio_tcp_connections_opened_total</code>, <code>istio_tcp_connections_closed_total</code>, <code>istio_tcp_received_bytes_total</code>, or <code>istio_tcp_sent_bytes_total</code>. Lastly, click Execute. The data will contain entries such as:</p><pre><code class=language-plain data-expandlinks=true data-repo=istio>istio_tcp_connections_opened_t