--- a
+++ b/src/CS/DC_VM.ned
@@ -0,0 +1,66 @@
+//
+// 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>
+//
+// NOTES:
+// This module describes a single VM in the DataCenter use-case.
+// Servers can be owned by only one Tenant per time.
+//
+// Colors of the IPC reflect the use case layers.
+// Link: https://wiki.ict-pristine.eu/wp2/d21/D21-Datnet-RINA
+
+package rina.CS;
+
+import rina.Common.Test;
+import rina.DAF.ApplicationProcess;
+import rina.DAF.DA.DIFAllocator;
+import rina.DIF.IPCProcess;
+import rina.DAF.IRM.IPCResourceManager;
+
+module DC_VM
+{
+    parameters:
+        @display("i=device/terminal;bgb=214,348");
+        @node;
+
+    gates:
+        inout medium;
+
+    submodules:
+        AP: ApplicationProcess {
+            @display("p=58,43");
+        }
+
+        difAllocator: DIFAllocator {
+            @display("p=156,43;i=,grey");
+        }
+
+        ipcResourceManager: IPCResourceManager {
+            @display("p=110,121");
+        }
+
+        TenantIPC: IPCProcess {
+            @display("p=110,211;i=,#0080FF");
+        }
+
+        ShimIPC: IPCProcess {
+            @display("p=110,293;i=,#800000");
+        }
+
+    connections allowunconnected:
+        ShimIPC.southIo++ <--> medium;
+        ShimIPC.northIo++ <--> TenantIPC.southIo++;
+}