5.5

Add an External Network
Add an external network to register vSphere network resources for vCloud Director to use. You can create
organization virtual datacenter networks that connect to an external network.
Prerequisites
A vSphere port group is available. If the port group uses VLAN, it can use only a single VLAN. Port groups
with VLAN trunking are not supported.
VMware recommends using an auto-expanding static port group.
Procedure
1 Click the Manage & Monitor tab and click External Networks in the left pane.
2 Click the Add Network button.
3 Select a vCenter Server and a vSphere port group and click Next.
4 Type the network settings and click Next.
5 Type a name and optional description for the network and click Next.
6 Review the network settings and click Finish.
What to do next
You can now create an organization virtual datacenter network that connects to the external network.
Network Pools
A network pool is a group of undifferentiated networks that is available for use in an organization virtual
datacenter to create vApp networks and certain types of organization virtual datacenter networks.
A network pool is backed by vSphere network resources such as VLAN IDs, port groups, or cloud isolated
networks. vCloud Director uses network pools to create NAT-routed and internal organization virtual
datacenter networks and all vApp networks. Network traffic on each network in a pool is isolated at layer 2
from all other networks.
Each organization virtual datacenter in vCloud Director can have one network pool. Multiple organization
virtual datacenters can share the same network pool. The network pool for an organization virtual
datacenter provides the networks created to satisfy the network quota for an organization virtual
datacenter.
A VXLAN network pool is created when you create a provider virtual datacenter. In most cases, this is the
only network pool you will need.
VXLAN Network Pools
vSphere VXLAN networks are based on the IETF draft VXLAN standard. These networks support the local-
domain isolation equivalent to what is vSphere isolation-backed networks support.
When you create a provider virtual datacenter, a VXLAN network pool is created in vCloud Director. When
you use this network pool, VXLAN virtual wires are created in vCenter Server. Most configurations do not
require network pools beyond the VXLAN network pool.
This pool is given a name derived from the name of the containing provider virtual datacenter and attached
to it at creation. You cannot delete or modify this network pool. You cannot create a VXLAN network pool
by any other method. If you rename a provider virtual datacenter, its VXLAN network pool is automatically
renamed.
Chapter 2 Adding Resources to vCloud Director
VMware, Inc. 21