1ftp-download-stress01 2 Verify the ftp server or the kernel is not down after a ftp client 3 requests large data via IPv4/IPv6 4 5ftp-download-stress02 6 Verify the ftp server or the kernel is not down after many ftp 7 clients request data over IPv4/IPv6 asynchronously for a long time 8 9ftp-upload-stress01 10 Verify the ftp server or the kernel is not down after a ftp client 11 uploads a large data via IPv4/IPv6 12 13ftp-upload-stress02 14 Verify the ftp server or the kernel is not down after many ftp clients 15 uploads data over IPv4/IPv6 asynchronously for a long time 16