code: def enable_lldp(self, port_name, is_ncb=True, is_nb=False):
          
          reply = None
          if is_ncb:
              reply = self.run_lldptool(["-L", "-i", port_name, "-g", "ncb",
                                         "adminStatus=rxtx"])
          elif is_nb:
              reply = self.run_lldptool(["-L", "-i", port_name, "-g", "nb",
                                         "adminStatus=rxtx"])
          else:
              LOG.error("Both NCB and NB are not selected to "
                        "enable LLDP")
              return False
          if reply is None:
              return False
          exp_str = "adminstatus=rxtx"
          if exp_str in reply.replace(" ", "").lower():
              return True
          else:
              return False
docs: Function to enable LLDP on the interface.