Cabletron Systems 6A000 ユーザーズマニュアル

SmartCell 6A000 User Guide   4-25

Switch Administration

Upgrading and Changing Software  

Figure 4-4 Memory locations affected by the boot load commands

4.7.3

Upgrading Boot Load Software

Two images of the boot load software reside in flash RAM. The two images are identified as boot load image 0 and 
boot load image 1. Both boot load images can be upgraded by using a TFTP/Bootp server. However, an upgrade is 
always written over the boot load image that is not currently running. This insures that if a boot load upgrade fails, 
there is still one good boot load image to fall back on.

Follow the steps below to upgrade the switch boot load software.

Set up the TFTP/Bootp server software on a workstation. 

Connect both the TFTP/Bootp server and the SmartCell 6A000 to your Ethernet network. Make sure 
that the TFTP/Bootp server can be reached by the SmartCell 6A000 Ethernet interface.

Connect a dumb terminal (or PC running terminal emulation software) to the SmartCell 6A000 
Terminal port.

Copy the SmartCell 6A000 boot load software image into the appropriate location on the 
TFTP/Bootp server. (In this example, the software is copied to c:\tftpboot\images\boot.ima.)

initial boot routines

boot image 0

boot image 1

MAC addresses

configuration storage

POST diagnostics

SmartCell 6A000 switch
operating software

Image is downloaded into boot PROM by 

 

Cleared by 

 sets which is the default boot image

POST is downloaded into
flash RAM by 

 

 turns POST on and off.

Switch software is downloaded
to flash RAM by 

 runs switch software in

DRAM