3com 3C17501 Manual Do Utilizador

TFTP (Trivial File Transfer Protocol) is a simple file transfer protocol that is used 
without complex interaction between clients and servers. 

The client initiates a TFTP transmission. To download files, the client sends a read 
request packet to the TFTP server, receives the packet from the server, and sends 
the acknowledgement to the server. To upload files, the client sends a write 
request packet to the TFTP server, sends the data packet to the server, and receives 
the acknowledgement from the server. 

The Switch 8800 provides the functions of the TFTP client.

Before you upgrade:

■

Verify that there is a connection between the TFTP server and the Switch 8800 
(use the 

 command.)

■

Verify that the TFTP server is set up according to the manufacturer's instructions 
and that it is enabled and pointing to the correct directory.

To upgrade using TFTP:

1 Verify that you are logged in with super-user privileges.

2 From the Switch 8800 command line (in user view), TFTP the image file from the 

TFTP server to the Switch 8800 using the following command:

3 Set the boot parameters to specify the file to boot the system from, using the 

following command:

4 Reboot the system.

The following example illustrates this procedure:

<SW8800>tftp 192.168.25.210 get 88003.app

  Transfer file in binary mode. 

  Now begin to download file from remote tftp server, please wait... 

/

  TFTP:  5690749 bytes received in 376 second(s). 

  File downloaded successfully. 

<SW8800>boot boot-loader 88003.app

The specified file will be booted next time!

<SW8800>reboot

 This command will reboot the system. Continue? [Y/N] y

If the BootROM password of the switch is lost, contact your local support center, 
listed in Appendix B.