Cisco Cisco Aironet 340 Ethernet Bridges Guia Do Utilizador

4.

The unit begins the file download. A message similar to the follow-

ing appears:

XMODEM: received 160450 bytes in 00:03:36; 800 bytes/

s transfer rate

After the loaded code for the new firmware is validated, the flash mem-
ory is programmed and the unit will restart with the new code.

The firmware consists of the boot block and the application code. Dur-
ing the firmware download, the application code is replaced, but the 
boot block is not.

When the unit powers up, the boot block checks the integrity of the 
application code. If it is valid, the boot block will execute the new firm-
ware. If it is invalid, the boot block will display an error message on the 
Console and the firmware will need to be reloaded.

The only time you should receive an invalid application code is when the 
flash memory device fails or the power is interrupted while the flash 
memory is in the process of being programmed.

Use the FTP option to download or upload firmware. The Aironet 340 
Series Bridge can be an FTP client or FTP server. To upload or down-
load firmware you can initiate a connection from:

n The Aironet 340 Series Bridge console to a remote PC or host and 

retrieve a new version of the firmware.

n The Aironet 340 Series Bridge console to a remote PC or host and 

send a copy of the running firmware.

n One Aironet 340 Series Bridge console to another allowing units to 

send or receive firmware running locally.

n A PC or host system to an Aironet 340 Series Bridge and send a new 

firmware version.

NOTE: Before you download or upload new code versions, make sure you 

have set the IP address on all units involved.