separate cfg files

Change-Id: I8fef56706583e10d3ca2aa77a7cfc1aba48168f3
diff --git a/tools/test/topos/tofino-demo-hosts.json b/tools/test/topos/tofino-demo-hosts.json
new file mode 100644
index 0000000..c9e23b3
--- /dev/null
+++ b/tools/test/topos/tofino-demo-hosts.json
@@ -0,0 +1,30 @@
+{
+  "hosts": {
+    "3c:fd:fe:a6:e7:08/-1": {
+      "basic": {
+        "latitude": 28,
+        "ips": [
+          "10.0.0.1"
+        ],
+        "locations": [
+          "device:tofino:11/180"
+        ],
+        "longitude": -113,
+        "name": "h1"
+      }
+    },
+    "3c:fd:fe:a6:e7:09/-1": {
+      "basic": {
+        "latitude": 28,
+        "ips": [
+          "10.0.0.2"
+        ],
+        "locations": [
+          "device:tofino:12/180"
+        ],
+        "longitude": -93,
+        "name": "h2"
+      }
+    }
+  }
+}