Tacker/neutron-port-attributes

= Neutron port attribute enhancement = NFV and ServiceVM need extensions/enhancements for neutron port. With this page, use cases/requirements are collected and then they will be broken down to actual blueprints and implemtations. For non-port related stuff, please refer to https://wiki.openstack.org/wiki/ServiceVM/neutron-and-other-project-items

Use case
Service VM implements some service, e.g., routing or VPN. That VM will then be connected to a number of Neutron Networks/Subnets in some tenant. To provide its service the VM must be able to FORWARD traffic (i.e., packets come in on one VM interface and same packets leave on another one).

Requirement
It must be possible to disable security groups on Neutron Ports used by a service VM. There exists an extension for this: https://github.com/openstack/neutron/blob/master/neutron/extensions/portsecurity.py However it is not implemented by the free plugins like ML2, Openvswitch etc.