Ftp Overview; Introduction To Ftp; Chapter 2 Ftp Configuration; Implementation Of Ftp - H3C S7500E Series Operation Manual

Operation Manual – File System Management
H3C S7500E Series Ethernet Switches

Chapter 2 FTP Configuration

When configuring FTP, go to these sections for information you are interested in:

FTP Overview

Configuring the FTP Client
Configuring the FTP Server
Displaying and Maintaining FTP
2.1 FTP Overview

2.1.1 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 transmits files in two modes:
Binary mode for program file transmission
ASCII mode for text file transmission

2.1.2 Implementation of FTP

FTP adopts the server/client model. Your device can function either as client or as
server (as shown in
When the device serves as the FTP client, a PC user first telnets or connects to
the device through an emulation program, then executes the ftp command to
establish the connection to the remote FTP server, and gain access to the files on
the server. If the remote FTP server supports anonymous FTP, the device can log
onto it directly; if not, the device must obtain FTP username and password first to
log onto the remote FTP server.
When the device serves as the FTP server, it must be configured with an IP
address so that a user running FTP client program can access it. For the sake of
security, the device does not support anonymous FTP. Therefore, you must use
an authenticated username and password. By default, authenticated users can
access the root directory of the device.
Figure 2-1). They work in the following way:
2-1
Chapter 2 FTP Configuration