3Com 4200G 12-Port, Руководство по настройке

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38
FTP
AND
TFTP C
ONFIGURATION
FTP Configuration
Introduction to FTP FTP (File Transfer Protocol) is commonly used in IP-based networks to transmit files.
Before World Wide Web comes into being, files are transferred through command
lines, and the most popular application is FTP. At present, although E-mail and Web
are the usual methods for file transmission, FTP still has its strongholds.
As an application layer protocol, FTP is used for file transfer between remote server
and local host.
An Ethernet switch provides the following FTP services:
■
FTP Client
A switch can operate as an FTP client, through which you can access files on FTP
servers. In this case, you need to establish a connection between the switch and
your PC through a terminal emulation program or Telnet and then execute the
ftp
X.X.X.X command on your PC. (X.X.X.X is the IP address of an FTP server.)
■
FTP Server
A switch can also operate as an FTP server to provide file transmission services for
FTP clients. You can log into a switch operating as an FTP server by running an FTP
client program on your PC to access files on the FTP server. In this case, the FTP
server must be configured with an IP address.
Figure 105 Network diagram for FTP configurations
Table 288 describes the operations needed when a switch operates as an FTP client.
Table 288 Configurations needed when a switch operates as an FTP client
Device Configuration Default Description
Switch Run the ftp command
directly to log into a
remote FTP server — To log into a remote FTP server, you need
to provide the user name and password.
FTP server Have an FTP server
application run and the
corresponding operations
performed, such as
usernames, passwords,
and permissions to assess
files/directories. — —
Switch
PC
Network
Network
Switch
PC
Network
Network