--- a/src/lte/model/lte-rlc.h	Thu Oct 27 16:27:21 2011 +0200
+++ b/src/lte/model/lte-rlc.h	Fri Nov 04 13:29:20 2011 +0000
@@ -101,6 +101,8 @@
 
 
   // TODO MRE What is the sense to duplicate all the interfaces here???
+  // NB to avoid the use of multiple inheritance
+  
 protected:
   // Interface forwarded by LteRlcSapProvider
   virtual void DoTransmitPdcpPdu (Ptr<Packet> p) = 0;