XGS-5240-Series User Manual

Configuration Guide of XGS-5240-Series
73
-rw-r--r--11577853 Thu Jan 01 00:04:56 1970 a.img
-rw-r--r-- 4 Thu Jan 01 03:15:07 1970 board_web_language
-rw-r--r—11577853 Thu Jan 01 13:58:15 1970 nos.img
4 file(s), 0 dir(s)
Total size:31457280 bytes , files used size:23158571 bytes, free size:8298709 bytes
[Boot]:
2. boot command
Used to set the IMAGE file to run upon system start-up, and the configuration file to run upon
configuration recovery.
[Boot]: boot img nos.img primary
0 bytes written, 2704 bytes skipped.
flash:/nos.img will be used as the primary img file at the next time!
[Boot]: show boot-files
The primary img file : flash:/nos.img
The backup img file : flash:/nos.img
The startup-config file: NULL
[Boot]:
4.5.3 FTP/TFTP Upgrade
1.1.1.15 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 between the client and the server:
a management connection and a data connection. A transfer request should be sent by the
FTP client to establish management connection on port 21 in the server, and negotiate a data