de></td><td><code>LastValue</code></td><td>The number of streams currently connected.</td></tr><tr><td><code>istio_mcp_message_sizes_bytes</code></td><td><code>Distribution</code></td><td>Size of messages received from clients.</td></tr><tr><td><code>istio_mcp_reconnections</code></td><td><code>Sum</code></td><td>The number of times the sink has reconnected.</td></tr><tr><td><code>istio_mcp_recv_failures_total</code></td><td><code>Sum</code></td><td>The number of recv failures in the source.</td></tr><tr><t