'Make a remote process call to update the dhcp port.'

def update_dhcp_port(self, port_id, port):

    cctxt = self.client.prepare(version='1.1')
    port = cctxt.call(self.context, 'update_dhcp_port', port_id=port_id, port=port, host=self.host)
    if port:
        return dhcp.DictModel(port)
