def _get_spi(self):
return self.__spi<EOL>
Getter method for spi, mapped from YANG variable /interface/gigabitethernet/ipv6/interface_ospfv3_conf/authentication/ipsec_auth_key_config/spi (spi-value-type)

YANG Description: Security Parameter IndexThe SPI value in combination with the destination IP address and security protocol  uniquely identifies the Security Association for a datagram. The near-end and far-end values for the spi must be the same.