4. Networking Examples : 4.7 VCDNI-Backed Organization Network : 4.7.1 Background
   
4.7.1 Background
A network pool is an object in vCloud that creates and manages isolated networks using vSphere port groups. The vSphere port groups can be pre-provisioned in vSphere or created dynamically by vCloud as needed for organization or vApp networks.
The following types of network pools are available in vCloud Director:
*VXLAN (dynamically created vSphere port groups)
*VLAN-backed (dynamically created vSphere port groups)
*vCloud Network Isolation-backed (dynamically created vSphere port groups)
*vSphere port group-backed (manually created vSphere port groups)