--- a
+++ b/examples/FatTreeTopology/FatTreeTopology.ned
@@ -0,0 +1,70 @@
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+// 
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see http://www.gnu.org/licenses/.
+// 
+// Author: Kewin Rausch <kewin.rausch@create-net.org>
+// Description: Provides a small DC example using RINA.
+
+package rina.examples.FatTreeTopology;
+
+import rina.CS.*;
+import rina.DAF.IRM.ConnectionTable;
+import rina.DIF.EFCP.DTCP.*;
+
+
+network FatTreeTopology
+{
+    @display("bgb=975,618");
+
+    submodules:
+
+        AS1: InteriorRouter2Int {
+            @display("p=267,96");
+        }
+        AS2: InteriorRouter2Int {
+            @display("p=667,96");
+        }
+        TOR1: InteriorRouter4Int {
+            @display("p=267,268");
+        }
+        TOR2: InteriorRouter4Int {
+            @display("p=667,268");
+        }
+
+        Server1: Host1AP {
+            @display("p=185,441");
+        }
+        Server2: Host1AP {
+            @display("p=349,441");
+        }
+        Server3: Host1AP {
+            @display("p=585,441");
+        }
+        Server4: Host1AP {
+            @display("p=749,441");
+        }
+
+    connections:
+
+        AS1.medium[0] <--> TOR1.medium[0];
+        AS1.medium[1] <--> TOR2.medium[0];
+
+        AS2.medium[0] <--> TOR1.medium[1];
+        AS2.medium[1] <--> TOR2.medium[1];
+
+        Server1.medium <--> TOR1.medium[2];
+        Server2.medium <--> TOR1.medium[3];
+
+        Server3.medium <--> TOR2.medium[2];
+        Server4.medium <--> TOR2.medium[3];
+}