loadgen-parts.dot

digraph G {

subgraph cluster_client {
    label = "client machine"
    loadGen -> ag_solo
    loadGen [ label="loadGen\n(node.js)"]
}

ag_solo -> RPC

subgraph cluster_0 {
    label="chain"
    RPC
}

RPC [label="RPC\n(sentry OK)"]
}

loadgen-parts.svg

<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><!-- Generated by graphviz version 2.40.1 (20161225.0304)
 --><!-- Title: G Pages: 1 --><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="158pt" height="303pt" viewBox="0.00 0.00 158.00 303.26">
<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 299.2626)">
<title>G</title>
<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-299.2626 154,-299.2626 154,4 -4,4"/>
<g id="clust1" class="cluster">
<title>cluster_client</title>
<polygon fill="none" stroke="#000000" points="21,-115.6313 21,-287.2626 129,-287.2626 129,-115.6313 21,-115.6313"/>
<text text-anchor="middle" x="75" y="-270.6626" font-family="Times,serif" font-size="14.00" fill="#000000">client machine</text>
</g>
<g id="clust2" class="cluster">
<title>cluster_0</title>
<polygon fill="none" stroke="#000000" points="8,-8 8,-107.6313 142,-107.6313 142,-8 8,-8"/>
<text text-anchor="middle" x="75" y="-91.0313" font-family="Times,serif" font-size="14.00" fill="#000000">chain</text>
</g>
<!-- loadGen -->
<g id="node1" class="node">
<title>loadGen</title>
<ellipse fill="none" stroke="#000000" cx="75" cy="-225.0469" rx="46.4496" ry="29.3315"/>
<text text-anchor="middle" x="75" y="-229.2469" font-family="Times,serif" font-size="14.00" fill="#000000">loadGen</text>
<text text-anchor="middle" x="75" y="-212.4469" font-family="Times,serif" font-size="14.00" fill="#000000">(node.js)</text>
</g>
<!-- ag_solo -->
<g id="node2" class="node">
<title>ag_solo</title>
<ellipse fill="none" stroke="#000000" cx="75" cy="-141.6313" rx="41.1529" ry="18"/>
<text text-anchor="middle" x="75" y="-137.4313" font-family="Times,serif" font-size="14.00" fill="#000000">ag_solo</text>
</g>
<!-- loadGen&#45;&gt;ag_solo -->
<g id="edge1" class="edge">
<title>loadGen-&gt;ag_solo</title>
<path fill="none" stroke="#000000" d="M75,-195.4028C75,-187.1976 75,-178.3109 75,-170.1701"/>
<polygon fill="#000000" stroke="#000000" points="78.5001,-170.0178 75,-160.0179 71.5001,-170.0179 78.5001,-170.0178"/>
</g>
<!-- RPC -->
<g id="node3" class="node">
<title>RPC</title>
<ellipse fill="none" stroke="#000000" cx="75" cy="-45.4156" rx="58.7262" ry="29.3315"/>
<text text-anchor="middle" x="75" y="-49.6156" font-family="Times,serif" font-size="14.00" fill="#000000">RPC</text>
<text text-anchor="middle" x="75" y="-32.8156" font-family="Times,serif" font-size="14.00" fill="#000000">(sentry OK)</text>
</g>
<!-- ag_solo&#45;&gt;RPC -->
<g id="edge2" class="edge">
<title>ag_solo-&gt;RPC</title>
<path fill="none" stroke="#000000" d="M75,-123.5339C75,-112.7955 75,-98.7356 75,-85.5076"/>
<polygon fill="#000000" stroke="#000000" points="78.5001,-85.1568 75,-75.1568 71.5001,-85.1569 78.5001,-85.1568"/>
</g>
</g>
</svg>

editable source?
https://bit.ly/37VJmLx