The TCP state diagram (source: RFC 793) with hover support. Uses tipsy JS and CSS for the tooltip.
// Create a new directed graph
var g = new dagreD3.graphlib.Graph().setGraph({});
// States and transitions from RFC 793
var states = {
CLOSED: {
description: "represents no connection state at all.",
style: "fill: #f77"
},
LISTEN: {
description: "represents waiting for a connection request from any " +
"remote TCP and port."
},
"SYN SENT": {
description: "represents waiting for a matching connection " +
"request after having sent a connection request."
},
"SYN RCVD": {
description: "represents waiting for a confirming connection " +
"request acknowledgment after having both received and sent a " +
"connection request."
},
ESTAB: {
description: "represents an open connection, data received " +
"can be delivered to the user. The normal state for the data " +
"transfer phase of the connection.",
style: "fill: #7f7"
},
"FINWAIT-1": {
description: "represents waiting for a connection termination " +
"request from the remote TCP, or an acknowledgment of the " +
"connection termination request previously sent."
},
"FINWAIT-2": {
description: "represents waiting for a connection termination " +
"request from the remote TCP."
},
"CLOSE WAIT": {
description: "represents waiting for a connection termination " +
"request from the local user."
},
CLOSING: {
description: "represents waiting for a connection termination " +
"request acknowledgment from the remote TCP."
},
"LAST-ACK": {
description: "represents waiting for an acknowledgment of the " +
"connection termination request previously sent to the remote " +
"TCP (which includes an acknowledgment of its connection " +
"termination request)."
},
"TIME WAIT": {
description: "represents waiting for enough time to pass to be " +
"sure the remote TCP received the acknowledgment of its " +
"connection termination request."
}
};
// Add states to the graph, set labels, and style
Object.keys(states).forEach(function(state) {
var value = states[state];
value.label = state;
value.rx = value.ry = 5;
g.setNode(state, value);
});
// Set up the edges
g.setEdge("CLOSED", "LISTEN", { label: "open" });
g.setEdge("LISTEN", "SYN RCVD", { label: "rcv SYN" });
g.setEdge("LISTEN", "SYN SENT", { label: "send" });
g.setEdge("LISTEN", "CLOSED", { label: "close" });
g.setEdge("SYN RCVD", "FINWAIT-1", { label: "close" });
g.setEdge("SYN RCVD", "ESTAB", { label: "rcv ACK of SYN" });
g.setEdge("SYN SENT", "SYN RCVD", { label: "rcv SYN" });
g.setEdge("SYN SENT", "ESTAB", { label: "rcv SYN, ACK" });
g.setEdge("SYN SENT", "CLOSED", { label: "close" });
g.setEdge("ESTAB", "FINWAIT-1", { label: "close" });
g.setEdge("ESTAB", "CLOSE WAIT", { label: "rcv FIN" });
g.setEdge("FINWAIT-1", "FINWAIT-2", { label: "rcv ACK of FIN" });
g.setEdge("FINWAIT-1", "CLOSING", { label: "rcv FIN" });
g.setEdge("CLOSE WAIT", "LAST-ACK", { label: "close" });
g.setEdge("FINWAIT-2", "TIME WAIT", { label: "rcv FIN" });
g.setEdge("CLOSING", "TIME WAIT", { label: "rcv ACK of FIN" });
g.setEdge("LAST-ACK", "CLOSED", { label: "rcv ACK of FIN" });
g.setEdge("TIME WAIT", "CLOSED", { label: "timeout=2MSL" });
// Create the renderer
var render = new dagreD3.render();
// Set up an SVG group so that we can translate the final graph.
var svg = d3.select("svg"),
inner = svg.append("g");
// Set up zoom support
var zoom = d3.zoom()
.on("zoom", function() {
inner.attr("transform", d3.event.transform);
});
svg.call(zoom);
// Simple function to style the tooltip for the given node.
var styleTooltip = function(name, description) {
return "<p class='name'>" + name + "</p><p class='description'>" + description + "</p>";
};
// Run the renderer. This is what draws the final graph.
render(inner, g);
inner.selectAll("g.node")
.attr("title", function(v) { return styleTooltip(v, g.node(v).description) })
.each(function(v) { $(this).tipsy({ gravity: "w", opacity: 1, html: true }); });
// Center the graph
var initialScale = 0.75;
svg.call(zoom.transform, d3.zoomIdentity.translate((svg.attr("width") - g.graph().width * initialScale) / 2, 20).scale(initialScale));
svg.attr('height', g.graph().height * initialScale + 40);text {
font-weight: 300;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serf;
font-size: 14px;
}
.node rect {
stroke: #333;
fill: #fff;
}
.edgePath path {
stroke: #333;
fill: #333;
stroke-width: 1.5px;
}
.node text {
pointer-events: none;
}
/* This styles the title of the tooltip */
.tipsy .name {
font-size: 1.5em;
font-weight: bold;
color: #60b1fc;
margin: 0;
}
/* This styles the body of the tooltip */
.tipsy .description {
font-size: 1.2em;
}