We have basically three types:
External Network: a portgroup on a switch (distributed, standard or Nexus). It is the vlan and ip segment (public or private) allocated physically
Organization Network: created automatically when create the Provider VDC, it´s only for organization use and could be one of three types:
1-direct connected to an external network
2-routed connected with a vShield Edge wich have two ip´s: one on the External Network side and one on the Organization Network to share the traffic between the vApp and the External Network
3-no connected to external network
vApp network: this network is created automatically when the vApp is created. The two functions are:
-No connected to Organization Network
-Routed connected to Organization Network
....On next post Part-1/2 will review more concepts like Fencing, Isolating or Routed networks.
