Learning OpenStack Networking - Third Edition

Booting an instance with a trunk

Now that the trunk has been created and associated with a parent and sub-port, an instance can be booted and attached only to the parent port. Since a VIF is not being created for the subinterface(s), there's no need to attach them at boot. Logic within Neutron will associate traffic from sub-interfaces inside the instance with the parent interface.

The following OpenStack command syntax can be used to boot the instance with a parent port attached:

openstack server create \--image <image> \--flavor<flavor> \--key-name <keypair name> \--nic port-id=<parent port> \<name>