+ <xs:element ref="tns:cloud-region" minOccurs="0"/>
+ <xs:element ref="tns:generic-vnf" minOccurs="0"/>
+ <xs:element ref="tns:l3-network" minOccurs="0"/>
+ <xs:element ref="tns:logical-link" minOccurs="0"/>
+ <xs:element ref="tns:p-interface" minOccurs="0"/>
+ <xs:element ref="tns:physical-link" minOccurs="0"/>
+ <xs:element ref="tns:pserver" minOccurs="0"/>
+ <xs:element ref="tns:pnf" minOccurs="0"/>
+ <xs:element ref="tns:service-instance" minOccurs="0"/>
+ <xs:element ref="tns:tenant" minOccurs="0"/>
+ <xs:element ref="tns:vserver" minOccurs="0"/>