diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_1_addInstance.json b/web/gui/src/test/_karma/ev/dualHomed/ev_1_addInstance.json
new file mode 100644
index 0000000..daf074b
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_1_addInstance.json
@@ -0,0 +1,15 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "127.0.0.1",
+    "ip": "127.0.0.1",
+    "online": true,
+    "ready": true,
+    "uiAttached": true,
+    "switches": 2,
+    "labels": [
+      "127.0.0.1",
+      "127.0.0.1"
+    ]
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_2_addDevice_01.json b/web/gui/src/test/_karma/ev/dualHomed/ev_2_addDevice_01.json
new file mode 100644
index 0000000..c30ea6b
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_2_addDevice_01.json
@@ -0,0 +1,19 @@
+{
+  "event": "addDevice",
+  "payload": {
+    "id": "of:0000000000000001",
+    "type": "switch",
+    "online": true,
+    "master": "127.0.0.1",
+    "labels": [
+      "",
+      "of:0000000000000001",
+      "of:0000000000000001"
+    ],
+    "props": {
+      "managementAddress": "192.168.36.101",
+      "protocol": "OF_13",
+      "channelId": "192.168.36.101:55710"
+    }
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_3_addDevice_02.json b/web/gui/src/test/_karma/ev/dualHomed/ev_3_addDevice_02.json
new file mode 100644
index 0000000..2fde4a6
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_3_addDevice_02.json
@@ -0,0 +1,19 @@
+{
+  "event": "addDevice",
+  "payload": {
+    "id": "of:0000000000000002",
+    "type": "switch",
+    "online": true,
+    "master": "127.0.0.1",
+    "labels": [
+      "",
+      "of:0000000000000002",
+      "of:0000000000000002"
+    ],
+    "props": {
+      "managementAddress": "192.168.36.101",
+      "protocol": "OF_13",
+      "channelId": "192.168.36.101:55712"
+    }
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_4_addLink_1to2.json b/web/gui/src/test/_karma/ev/dualHomed/ev_4_addLink_1to2.json
new file mode 100644
index 0000000..3ce5e3a
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_4_addLink_1to2.json
@@ -0,0 +1,14 @@
+{
+  "event": "addLink",
+  "payload": {
+    "id": "of:0000000000000001/2-of:0000000000000002/2",
+    "type": "direct",
+    "expected": false,
+    "online": true,
+    "linkWidth": 1.2,
+    "src": "of:0000000000000001",
+    "srcPort": "2",
+    "dst": "of:0000000000000002",
+    "dstPort": "2"
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_5_addLink_2to1.json b/web/gui/src/test/_karma/ev/dualHomed/ev_5_addLink_2to1.json
new file mode 100644
index 0000000..ad4562e
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_5_addLink_2to1.json
@@ -0,0 +1,14 @@
+{
+  "event": "addLink",
+  "payload": {
+    "id": "of:0000000000000002/2-of:0000000000000001/2",
+    "type": "direct",
+    "expected": false,
+    "online": true,
+    "linkWidth": 1.2,
+    "src": "of:0000000000000002",
+    "srcPort": "2",
+    "dst": "of:0000000000000001",
+    "dstPort": "2"
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_6_addHost_to1.json b/web/gui/src/test/_karma/ev/dualHomed/ev_6_addHost_to1.json
new file mode 100644
index 0000000..6a234a6
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_6_addHost_to1.json
@@ -0,0 +1,23 @@
+{
+  "event": "addHost",
+  "payload": {
+    "id": "00:00:00:00:00:01/None",
+    "type": "endstation",
+    "cp": {
+      "device": "of:0000000000000001",
+      "port": 1
+    },
+    "allCps": [
+      {
+        "device": "of:0000000000000001",
+        "port": 1
+      }
+    ],
+    "labels": [
+      "10.0.0.1",
+      "10.0.0.1",
+      "00:00:00:00:00:01"
+    ],
+    "props": {}
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_7_updateDevice_01.json b/web/gui/src/test/_karma/ev/dualHomed/ev_7_updateDevice_01.json
new file mode 100644
index 0000000..214d10b
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_7_updateDevice_01.json
@@ -0,0 +1,28 @@
+{
+  "event": "updateDevice",
+  "payload": {
+    "id": "of:0000000000000001",
+    "type": "switch",
+    "online": true,
+    "master": "127.0.0.1",
+    "labels": [
+      "",
+      "SW-A",
+      "of:0000000000000001"
+    ],
+    "props": {
+      "managementAddress": "192.168.36.101",
+      "protocol": "OF_13",
+      "latitude": "43.37",
+      "name": "SW-A",
+      "locType": "geo",
+      "channelId": "192.168.36.101:55710",
+      "longitude": "-104.6572"
+    },
+    "location": {
+      "locType": "geo",
+      "latOrY": 43.37,
+      "longOrX": -104.6572
+    }
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_8_updateDevice_02.json b/web/gui/src/test/_karma/ev/dualHomed/ev_8_updateDevice_02.json
new file mode 100644
index 0000000..3fbb1d4
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_8_updateDevice_02.json
@@ -0,0 +1,28 @@
+{
+  "event": "updateDevice",
+  "payload": {
+    "id": "of:0000000000000002",
+    "type": "switch",
+    "online": true,
+    "master": "127.0.0.1",
+    "labels": [
+      "",
+      "SW-B",
+      "of:0000000000000002"
+    ],
+    "props": {
+      "managementAddress": "192.168.36.101",
+      "protocol": "OF_13",
+      "latitude": "38.5189",
+      "name": "SW-B",
+      "locType": "geo",
+      "channelId": "192.168.36.101:55712",
+      "longitude": "-109.2781"
+    },
+    "location": {
+      "locType": "geo",
+      "latOrY": 38.5189,
+      "longOrX": -109.2781
+    }
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/ev_9_moveHost.json b/web/gui/src/test/_karma/ev/dualHomed/ev_9_moveHost.json
new file mode 100644
index 0000000..195208c
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/ev_9_moveHost.json
@@ -0,0 +1,41 @@
+{
+  "event": "moveHost",
+  "payload": {
+    "id": "00:00:00:00:00:01/None",
+    "type": "endstation",
+    "cp": {
+      "device": "of:0000000000000001",
+      "port": 1
+    },
+    "prevCp": {
+      "device": "of:0000000000000001",
+      "port": 1
+    },
+    "allCps": [
+      {
+        "device": "of:0000000000000001",
+        "port": 1
+      },
+      {
+        "device": "of:0000000000000002",
+        "port": 1
+      }
+    ],
+    "labels": [
+      "Host-X",
+      "10.0.0.1",
+      "00:00:00:00:00:01"
+    ],
+    "props": {
+      "name": "Host-X",
+      "locType": "geo",
+      "latitude": "39.9444",
+      "longitude": "-91.7822"
+    },
+    "location": {
+      "locType": "geo",
+      "latOrY": 39.9444,
+      "longOrX": -91.7822
+    }
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/dualHomed/scenario.json b/web/gui/src/test/_karma/ev/dualHomed/scenario.json
new file mode 100644
index 0000000..a640d38
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/dualHomed/scenario.json
@@ -0,0 +1,22 @@
+{
+  "comments": [
+    "Single Host connected to two devices (Dual-Homed)."
+  ],
+  "title": "Dual-Homed Scenario",
+  "params": {
+    "lastAuto": 0
+  },
+  "description": [
+    "Simple sequence of events...",
+    "",
+    "1. add instance",
+    "2. add device [1]",
+    "3. add device [2]",
+    "4. add link [1] --> [2]",
+    "5. add link [2] --> [1]",
+    "6. add host (to [1])",
+    "7. update device [1]",
+    "8. update device [2]",
+    "9. move host (to include [2])"
+  ]
+}