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3Com Router 3000 Ethernet Family
Installation Guide
3. Starting and Maintaining the Route
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3-7
The Boot ROM submenu is displayed:
Boot ROM Download Menu:
1: Download Boot ROM with XModem
2: Download Extended Segment of Boot ROM with XModem
3: Restore Extended Segment of Boot ROM from FLASH
4: Backup Extended Segment of Boot ROM to FLASH
5: Exit to Main Menu
Enter your choice(1-5):
The menu provides approaches to Boot ROM upgrade, backup, and recovery.
5) Select <8> to have the system ignore the software version of the Boot ROM program, its
extended segment, and application program for backward compatibility. If you fails to
upgrade the software because the system considers that you are using an “invalid
version” even when the correct version is used, you can use option 8 to ignore the version
check during software upgrading. Note that this option works only once after you select it.
Then, the system resumes version check at reboot.
3.2.2 Upgrading Programs through XModem
When you upgrade software through XModem, you can do that using the console port without
having to set up another configuration environment.
3.2.2.1 Upgrading an application program
Step 1: Enter the Boot menu and press <1> to download an application program using XModem.
The following download speeds are available for the router:
Downloading application program from serial ...
Please choose your download speed:
1: 9600 bps
2: 19200 bps
3: 38400 bps
4: 57600 bps
5: 115200 bps
6: Exit and reboot
Enter your choice(1-6):
Step 2: Select an appropriate download speed (for example, 115200 bps by entering <5>). The
following message appears:
Download speed is 115200 bps. Change the terminal's speed to 115200 bps, and select
XModem protocol. Press ENTER key when ready.