@param src - Source IP address
@param dst - Destination IP address, can be multicast
@param mcast_sw_if_index - Interface for multicast destination
@param src - Source IP address
@param dst - Destination IP address, can be multicast
@param mcast_sw_if_index - Interface for multicast destination
@param vni - The VXLAN Network Identifier, uint24
@param sw_ifindex - Ignored in add message, set in details
*/
@param vni - The VXLAN Network Identifier, uint24
@param sw_ifindex - Ignored in add message, set in details
*/