Ftp configuration, Ftp overview, Introduction to ftp – H3C Technologies H3C SecPath F1000-E User Manual
Page 131: Operation of ftp
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FTP Configuration
This chapter includes these sections:
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Displaying and Maintaining FTP
FTP Overview
Introduction to FTP
The File Transfer Protocol (FTP) is an application layer protocol for sharing files between server and client
over a TCP/IP network.
FTP uses TCP ports 20 and 21 for file transfer. Port 20 is used to transmit data, and port 21 to transmit
control commands. Refer to RFC 959 for details of FTP basic operation.
FTP transfers files in two modes:
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Binary mode: transfers files as raw data, like .app, .bin, and .btm files.
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ASCII mode: transfers files as text, like .txt, .bat, and .cfg files.
Operation of FTP
FTP adopts the client/server model. Your device can function either as the client or as the server (as
shown in
).
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When the device serves as the FTP client, a user can telnet to it from a PC, and then execute the ftp
command to establish a connection to the remote FTP server on the PC to upload/download files
to/from the PC.
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When the device serves as the FTP server, a user can FTP to the device from a PC that runs the FTP
client and upload/download files to/from the device.
Figure 1 Network diagram for FTP
When the device serves as the FTP client, you need to perform the following configuration: