diff --git a/tools/test/topos/tofino-demo-dev-21.json b/tools/test/topos/tofino-demo-dev-21.json
new file mode 100644
index 0000000..17d39f3
--- /dev/null
+++ b/tools/test/topos/tofino-demo-dev-21.json
@@ -0,0 +1,41 @@
+{
+  "devices": {
+    "device:tofino:21": {
+      "generalprovider": {
+        "p4runtime": {
+          "ip": "10.254.1.40",
+          "deviceKeyId": "p4runtime:device:tofino:21",
+          "port": 50051,
+          "deviceId": 0
+        }
+      },
+      "piPipeconf": {
+        "piPipeconfId": "tofino-tor-montara"
+      },
+      "ports": {
+        "1/0": {
+          "name": "1/0",
+          "speed": 100000,
+          "enabled": true,
+          "number": 128,
+          "removed": false,
+          "type": "copper"
+        },
+        "2/0": {
+          "name": "2/0",
+          "speed": 100000,
+          "enabled": true,
+          "number": 136,
+          "removed": false,
+          "type": "copper"
+        }
+      },
+      "basic": {
+        "name": "Spine 1",
+        "latitude": 41,
+        "driver": "tofino",
+        "longitude": -107
+      }
+    }
+  }
+}
\ No newline at end of file