Step roughly divided into four steps:
1, before the upgrade preparation: about 5 minutes to check a variety of tools, software, adequacy
2, performing an upgrade: 1 takes about 30 minutes about 20 minutes to configure a cluster full board, 2 backup file, load the software version 3, restart equipment
3 to verify that the upgrade was successful: about 1 5 minutes, check the version 2 is correct, check the configuration is lost 3, check whether the normal start each board
4, perform a version rollback operation: it takes about 10 minutes to configure a cluster full board takes about 30 minutes to 1, the software version used when re-setting the next time the device is restarted 2, reboot the device
Preparation upgrade tool:
Before upgrade, you need the following tools:
L operation terminal may be a desktop or portable computer.
l cable, serial cable.
l If using FTP, TFTP, or SFTP way to upgrade, you need to prepare for FTP Server software, TFTP Server software or SFTP Server software.
Prepare the new version of the system software
Please contact the technology engineer or log http://support.huawei.com/enterprise website for the latest version of the system software.
Preparation latest patch file
1, by tftp software to download the upgrade package file to the switch
2, use the dir command, directory listing, where the extension cc that is the upgrade file, as shown in Figure 1-1-1.
3, important files backup CF card
CF card is an important document must be backed up before upgrading, including important documents: the configuration file, License files, Web files, before starting the upgrade system software and patch file. Backup files can be used for version rollback operation.
Check the remaining space of the CF card
dir
delete files cf card
file l use the delete command will be saved to the Recycle Bin, you can use the undelete command to restore files from the recycle bin, save the file to the Recycle Bin cfcard still take up space. reset recycle-bin command deletes all files in the Recycle Bin, the files will be permanently deleted and can not be restored.
l or use the delete / unreserved command to delete a file, the role of the command is equal to the delete command and then perform the reset recycle-bin command.
Upload (backup), the download is complete, the switch returns to quit configuration interface sequentially performed:
Startup System Software s5700si-v200r003c00spc300.cc-
SYS
upgrade the bootrom s5700si-v200r003c00spc300.cc Basic-
upgraded, FIG 2-1-3, FIG. As shown in 2-1-4. 
Figure 2-1-3
FIG 2-1-4
performed after (4) q, exit configuration mode, the switch performs reboot restart, 2-1-5 as shown in FIG.
Figure 2-1-5 reboot the switch
after (5) re-entering the system, perform dis ver, view the version, see the upgrade was successful, as shown in Figure 2-1-6.
Figure 2-1-6 to check the version
(6) Finally, delete the original file upgrade s5700si-v200r001c00spc300.cc
the Delete s5700si-v200r001c00spc300.cc
performed last save, save the settings, the upgrade is complete.