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Prestige 1100 Internet Access Router
System Maintenance 12-13
normal conditions is not recommended since FTP or TFTP is faster. Please note that the system reboots
automatically after the file transfer process is complete.
Figure 12-12 Menu 24.7 -- System Maintenance - Upload Firmware
12.8.1 Dual Firmware Block Structure
The Prestige P1100 employs a “dual firmware block structure” where one block is called the “main block”
and the other block is called the “backup block”. The benefits of this approach are:
• You can upload the current firmware into the backup block (ras-b) before you try to upload new
firmware. If the new firmware has problems, you may either revert to using your old working firmware
by using the “ATSW” command under Boot Extension or selectively run the old firmware in the
backup block by using the “ATGB” command under Boot Extension.
• If the firmware in the main block gets corrupted for some reason, the Prestige will try to boot from the
backup block automatically so service won’t get interrupted.
12.8.2 Upload Router Firmware via the Console Port
FTP or TFTP are the preferred methods for uploading router firmware to your Prestige. However in the
event of your network being down, uploading router firmware is only possible with a direct connection to
your Prestige via the console port. Uploading router firmware via the console port under normal conditions
is not recommended since FTP or TFTP is faster. Any serial communications program should work fine;
however, you must use the XMODEM protocol to perform the download/upload.
Select 1 from Menu 24.7 – System Maintenance – Firmware Update to go to Menu 24.7.1 - System
Maintenance - Upload ZyNOS Code.
Step 1. Enter "y" at the prompt to go into debug mode.
Step 2. Enter "atur" after the "Enter Debug Mode" message
Step 3. Wait for the "Starting XMODEM upload" message before activating the Xmodem upload on
your terminal.
Step 4. The system reboots automatically after a successful firmware upload.
Menu 24.7 -- System Maintenance - Upload Firmware
1. Upload ZyNOS Code
2. Upload Router Configuration File
Enter Menu Selection Number: