Triggers the INIC to force the NotAvailable state. 
- Parameters
- 
  
    | self | The instance |  | force | Is trueif the INIC shall force the network in NotAvailable state. Iffalsethe INIC shall no no longer force the network to NotAvailable state. |  | result_fptr | Optional result callback |  
 
- Returns
- Possible return values are shown in the table below. 
| Value | Description |  
| UCS_RET_SUCCESS | No error |  
| UCS_RET_ERR_BUFFER_OVERFLOW | No message buffer available |  
| UCS_RET_ERR_API_LOCKED | API is currently locked |  
| UCS_RET_ERR_NOT_INITIALIZED | UNICENS is not initialized |