neutron-lib/releasenotes/notes/port-resource-request-cb520...

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---
features:
- The new extension ``port-resource-request`` adds the ``resource_request``
attribute to port responses. This attribute enables Neutron to communicate
to Nova resources needed by the port, such as physnet, VNIC type and
bandwidth. If the port requested by Nova boot has the ``resource_request``
attribute, then the Nova Scheduler will try to allocate the VM in a host
that can satisfy those requirements.