NETFLOW_V9_MAX_RESERVED_FLOWSET
*p++ = htons(NETFLOW_V9_MAX_RESERVED_FLOWSET + NETFLOW_V9_FLOW_V4_L4);
*p++ = htons(NETFLOW_V9_MAX_RESERVED_FLOWSET + NETFLOW_V9_FLOW_V6_L4);
fsh.id = htons(NETFLOW_V9_MAX_RESERVED_FLOWSET + flow_type);