This API is used to specify whether to delete a NIC when the BMS is deleted or the NIC is detached.

PUT /v1/{project_id}/baremetalservers/{server_id}/os-interface/{port_id}

Table 1 lists the parameters.

**Table 1** Parameter description
Parameter	Mandatory	Description
project_id	Yes	Specifies the project ID. For details about how to obtain the project ID, see Obtaining a Project ID.
server_id	Yes	Specifies the BMS ID. You can obtain the BMS ID from the BMS console or by calling the Querying BMSs (Native OpenStack API).
port_id	Yes	Specifies the BMS NIC ID.

Request parameters

Parameter	Mandatory	Type	Description
interface_attachment	Yes	Object	Specifies the attribute to be modified. For details, see Table 2.

**Table 2** **interface_attachment** field data structure description
Parameter	Mandatory	Type	Description
delete_on_termination	Yes	Boolean	Specifies whether to delete a NIC when the BMS is deleted or the NIC is detached.

Example request

{
    "interface_attachment" : {
        "delete_on_termination": false
    }
}

None

Normal values

Returned Values	Description
200	The request has been successfully processed.

For details about other returned values, see Status Codes.

Modifying Attributes of a BMS NIC