Configuring external connection points of a virtual network function

You can specify external connection points of a virtual network function in the VNF descriptor, in the external_connections block.

To configure external connection points of the virtual network function:

1. Navigate to the topology in one of the following ways:
   • Start creating or editing a network service template.
   • Start creating or editing a network service.
2. In the topology, click the virtual network function for which you want to configure external connection points.

   The settings area is displayed in the lower part of the page. You can expand the settings area to fill the entire page by clicking the expand icon . By default, the Flavours tab is selected, which displays flavours.

3. Select the Connection points tab.

   This displays the external connection points of the virtual network function.

4. In the Type drop-down list, select how you want to assign an IPv4 prefix to the external connection point:
   • DHCP reservation to use DHCP to assign an IPv4 prefix to the external mount point. If you select this option, do the following:
     1. In the IP field, enter the IPv4 address that DHCP must assign to the external connection point.
     2. In the Mask field, enter the subnet mask that DHCP must assign to the external connection point.
   • AUTO to automatically assign an IPv4 prefix to the external connection point. Default value.
5. In the Description field, enter a brief description of the external connection point.
6. If you want to designate the connection point as the trunk port, select the Trunk check box. This check box is cleared by default.
7. In the upper part of the settings area, click Save to save virtual network function settings.