Use the switch's console serial port to connect to a workstation or laptop computer that has the following:
A terminal emulator program with Xmodem capability, such as the HyperTerminal program included in Windows PC software.
A copy of a good OS image file for the switch
NOTE:
The following procedure requires the use of Xmodem and copies an OS image into primary flash only.
This procedure assumes you are using HyperTerminal as your terminal emulator. If you use a different terminal emulator, you may need to adapt this procedure to the operation of your particular emulator.
Start the terminal emulator program.
Ensure that the terminal program is configured as follows:
Baud rate: 9600
No parity
8 Bits
1 stop bit
No flow control
Use the
Reset button to reset the switch.
The following prompt should then appear in the terminal emulator:
Enter h or ? for help.
=>
Because the OS file is large, you can increase the speed of the download by changing the switch console and terminal emulator baud rates to a high speed. For Example:
Change the switch baud rate to 115,200 Bps.
=> sp 115200
Change the terminal emulator baud rate to match the switch speed:
In HyperTerminal, select
Call|Disconnect.
Select
File|Properties.
Click on
Configure.
Change the baud rate to
115200.
Click on
[OK], then in the next window, click on
[OK] again.
Select
Call|Connect.
Press
[Enter] one or more times to display the => prompt.
Start the Console Download utility by entering
do at the =prompt and pressing
[Enter]:
=> do
You then see this prompt:
You have invoked the console download utility.
Do you wish to continue? (Y/N)>_
At the above prompt:
Enter
y (for Yes)
Select
Transfer|File in HyperTerminal.
Enter the appropriate filename and path for the OS image.
Select the
Xmodem protocol (and not the 1k Xmodem protocol).
Click on
[Send].
If you are using HyperTerminal, you will see a screen similar to the following to indicate that the download is in progress:
Figure 57: Example: of Xmodem download in progress
When the download completes, the switch reboots from primary flash using the OS image you downloaded in the preceding steps, plus the most recent startup-config file.