neutron-lib/api-ref/source/v2/samples/ports/port-add-allowed-address-pairs-request.json

{
   "port" : {
        "allowed_address_pairs": [
            {
                "ip_address": "192.168.13.7",
                "mac_address": "fa:16:3e:09:1f:b2"
            }
        ]
   }
}