Using tftp commands – Allied Telesis AT-WA7500 User Manual

Page 238

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9 - Additional Access Point Features

238

Using TFTP

Commands

TFTP commands are file transfer commands. An access point can act as
either a client or server in the TFTP environment. As a server, the access
point can service read and write requests from an access point client. As
a client, the access point can read files from and write files to any TFTP
server on the network. Both the client and server must operate in octet,
or 8-bit, mode.

When executing a script file, the access point retries TFTP client
commands get and put until the command is successfully completed. If
the first attempt fails, the access point retries after a one-minute delay.
With each successive failure, the retry time doubles until it reaches eight
minutes. Once this limit is reached, it remains at eight minutes until the
command is completed.

In general, TFTP client sessions should fail only if the server is not
responding either because it is busy serving other clients or because it
has not been started. In either case, the access point backoff algorithm
should prevent excessive network traffic when many access points are
trying to contact a TFTP server.

TFTP GET

Purpose: TFTP

client

requests a file from the TFTP

server.

Note

You must use the FE command to erase the segment before you
execute a TFTP GET command. If you do not erase the segment, you
may get a can’t write file error.

Syntax:

TFTP GET IPaddress foreignfilename

localfilename

where:

IPaddress is the IP address or DNS name of the server. You can use
an asterisk (*) here if you want to use the value in serveripaddress.

foreignfilename is the name of the file on the server. The filename
can contain directory path information and must be in the format
required by the server operating system. The file must already
have the appropriate file header before the transfer to the access
point.

localfilename is the name you wish to call the file on the access
point. The name must include a segment number or name
followed by a colon. An actual filename is optional. If only the
segment name is supplied, the filename is set equal to the
filename that is embedded in the file header on the server.

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