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DCS-3950 series Ethernet switch manual
Host IP Address: 10.1.1.1 192.168.1.189
Server IP Address: 10.1.1.2 192.168.1.101
FTP(1) or TFTP(2): 1 2
Network interface configure OK.
[Boot]:
Step 4:
Enable FTP/TFTP server in the PC. For TFTP, run TFTP server program; for FTP, run FTP
server program. Before start downloading upgrade file to the switch, verify the connectivity
between the server and the switch by ping from the server. If ping succeeds, run ‘load’
command in the BootROM mode from the switch; if it fails, perform troubleshooting to find
out the cause. The following is the configuration for the system update image file.
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entry = 0x10010
size = 0x1077f8
Step 5:
Execute ‘write nos.img’ in BootROM mode. The following saves the system update image
file.
[Boot]: writeimg
Programming...
Program OK.
Step 6:
After successful upgrade, execute ‘run’ command in BootROM mode to return to CLI
configuration interface.
5.5.2 FTP/TFTP Upgrade
5.5.2.1 Introduction to FTP/TFTP
FTP(File Transfer Protocol)/TFTP(Trivial File Transfer Protocol) are both file transfer
protocols that belonging to fourth layer(application layer) of the TCP/IP protocol stack,
used for transferring files between hosts, hosts and switches. Both of them transfer files in
a client-server model. Their differences are listed below.
FTP builds upon TCP to provide reliable connection-oriented data stream transfer
service. However, it does not provide file access authorization and uses simple
authentication mechanism (transfers username and password in plain text for
authentication). When using FTP to transfer files, two connections need to be established
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