I have several Catalyst 2950s that were somehow erased.
They do not boot, there is no IOS image in the flash.
I need to reload the IOS on it, and as far as I can tell all I can do in this case is Xmodem transfer.
I read the procedure here:
And followed it, it worked. I recovered one but it took a very long time through the console at 9600.
There is a procedure for using the set baud command to reset the console to 115200 at the bottom of that document:
When a user tries to recover the switch from a corrupted or missing IOS, the copy xmodem: flash:[IOS filename] command might not be displayed under the switch: prompt. The copy command might be displayed under the switch: prompt, but not the copy xmodem: command.
Complete these steps in order to speed up the Xmodem recovery:
Set the baud rate to 115200 on the switch: prompt.
switch: set BAUD 115200
!--- The screen goes blank after you enter this command.
Under COM PORT properties, select the bits per second as 115200. The switch: prompt is displayed.
Start the Xmodem recovery.
After the Xmodem recovery, set the BAUD rate back to 9600. If the set BAUD 9600 command does not bring the baud rate to 9600, issue the unset BAUD command in order to bring the baud rate to a default value of 9600 bps.
I did type set baud 115200, but the screen didn't go blank and I did not lose contact with the console.
I typed set
the switch reported it's settings, including
which I assume means that command did work, but did not take immediate effect.
I expected it to.
I reloaded the switch, but I still didn't lose contact with the switch at 9600. Clearly the switch console port speed did not change at all.
So I copied the file by xmodem at the same speed, but I should have been able to get this all going much faster.
I tried unset baud and typed set, and the baud setting was missing from the listing, so I assume that means my unset baud command was accepted.
What did I do wrong?
Is the writeup incorrect?
Can anyone shed any light on this?
Thanks in advance.
Solved! Go to Solution.