diff --git a/lib/extension/networkMap.js b/lib/extension/networkMap.js
index 90afdfe78..51d57839d 100644
--- a/lib/extension/networkMap.js
+++ b/lib/extension/networkMap.js
@@ -42,6 +42,7 @@ class NetworkMap {
 
     graphviz(zigbee, topology) {
         let text = 'digraph G {\nnode[shape=record];\n';
+        let devStyle = '';
 
         zigbee.getDevices().forEach((device) => {
             const labels = [];
@@ -67,8 +68,17 @@ class NetworkMap {
             // Add the device status (online/offline)
             labels.push(device.status);
 
+            // Shape the record according to device type
+            if (device.type == 'Coordinator') {
+                devStyle = 'style="bold"';
+            } else if (device.type == 'Router') {
+                devStyle = 'style="rounded"';
+            } else {
+                devStyle = 'style="rounded, dashed"';
+            }
+
             // Add the device with its labels to the graph as a node.
-            text += `  "${device.ieeeAddr}" [label="{${labels.join('|')}}"];\n`;
+            text += `  "${device.ieeeAddr}" [`+devStyle+`, label="{${labels.join('|')}}"];\n`;
 
             /**
              * Add an edge between the device and its parent to the graph
@@ -76,7 +86,8 @@ class NetworkMap {
              * due to not responded to the lqi scan. In that case we do not add an edge for this device.
              */
             topology.filter((e) => e.ieeeAddr === device.ieeeAddr).forEach((e) => {
-                text += `  "${device.ieeeAddr}" -> "${e.parent}" [label="${e.lqi}"]\n`;
+                const lineStyle = (e.lqi==0) ? `style="dashed", ` : ``;
+                text += `  "${device.ieeeAddr}" -> "${e.parent}" [`+lineStyle+`label="${e.lqi}"]\n`;
             });
         });