Learning OpenStack Networking - Third Edition

Creating a sub-port

Sub-ports should be associated with networks that will be tagged using 802.1q VLAN encapsulation inside the instance. Sub-ports are then associated with a trunk and correspond to tagged sub-interfaces within the guest operating system. With the openstack client, create a sub-port with the following attributes:

• Name: child-p0c1
• Network: RED_NET

The following command can be used:

openstack port create --network RED_NET child-p0c1 

The output will resemble the following:

Like any other port, when a sub-port is created, Neutron dynamically assigns a MAC address. However, when creating VLAN sub-interfaces inside an instance, ...