+option version = "1.1.0";
+
+/** \brief Create or delete a VXLAN tunnel
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param is_add - Use 1 to create the tunnel, 0 to remove it
+ @param is_ipv6 - Use 0 for IPv4, 1 for IPv6
+ @param instance - optional unique custom device instance, else ~0.
+ @param src_address - Source IP address
+ @param dst_address - Destination IP address, can be multicast
+ @param mcast_sw_if_index - Interface for multicast destination
+ @param encap_vrf_id - Encap route table FIB index
+ @param decap_next_index - Name of decap next graph node
+ @param vni - The VXLAN Network Identifier, uint24
+*/