some simple fixes
some simple fixes

mgerola/OpenVirteX,gauravsingh0110/ovx_vsdn,opennetworkinglab/OpenVirteX,mgerola/OpenVirteX,mgerola/OpenVirteX,opennetworkinglab/OpenVirteX,gauravsingh0110/ovx_vsdn,opennetworkinglab/OpenVirteX,gauravsingh0110/ovx_vsdn