R3204P16-HP Load Balancing Module System Maintenance Configuration Guide-6PW101

FTP configuration

NOTE:

The LB module supports FTP configuration only in the command line interfaces (CLIs).

FTP overview

Introduction to FTP

The File Transfer Protocol (FTP) is an application layer protocol used to share files between server and

client over a TCP/IP network.

FTP uses TCP ports 20 and 21. Port 20 is used to transmit data, and port 21 is used to transmit control

commands. For more information about FTP basic operations, see RFC 959.

FTP transfers files in the following modes:

• Binary mode: Transfers files as raw data, like .app, .bin, and .btm files.

• ASCII mode: Transfers files as text, like .txt, .bat, and .cfg files.

Operation of FTP

FTP adopts the client/server model. Your LB module can function either as the client or the server, as

shown in Figure 28.

• W

hen the LB module serves as the FTP client, a user can telnet to it from a PC, and execute the ftp

command to establish a connection to the remote FTP server on the PC to upload/download files

to/from the PC.

• When the LB module serves as the FTP server, a user can FTP to the LB module from a PC that runs

the FTP client and upload/download files to/from the LB module.

Figure 28 Network diagram for FTP

When the LB module serves as the FTP client, you need to perform the following configuration:

Table 19 Configuration when the LB module serves as the FTP client

Device Confi

uration

Remarks

LB (FTP client)

Use the ftp command to establish the

connection to the remote FTP server

If the remote FTP server supports anonymous

FTP, the LB module can log in to it directly; if

not, the LB module must obtain the FTP

username and password first to log in to the

remote FTP server.

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