3750 recovery BAUD setting

[cweatherford]

So I had to format flash and recover. I did the quicker way by using set BAUD 115200...once the .bin was across I forgot to set the baud back to 9600. I have followed instructions: go back to switch: set BAUD 9600 then reset. also tried the unset command. problem is it always comes back up with a BAUD of 115200. Can someone tell me wahat I am doing wrong? Will I have to label 1 switch as 115200?

TIA!

[fletcher969]

I had the same problem where my WS-C3750-48TS with a Version 12.2(44)SE5 bootloader kept reverting back to 115200 after I'd used that baud rate for an XModem transfer a new IOS. chuang123's solution worked with no problems.

set BAUD 9600

reset

[bsciluxs32]

I uploaded 12.55SE5 to a 3750 with 115200 BAUD speed and I got the same issue.

I just unplugged/plugged the powercord and pushed the mode button to get the switch: prompt

Did a "set BAUD 9600"

Change the BAUD rate of your terminal app (minicom in my case) otherwise you get garbage

reset

I saw the IOS booting but the last minute the config changed the speed again to 115200

I changed my terminal app to 115200 and changed the following

line con 0

speed 9600

write mem

reload and all back to normal

It looks like the IOS config takes the console speed on the initial load after the xmodem (set BAUD 115200) and puts that in the config.

If you change the BAUD speed again in rom mon the config doesn't get updated it seems.

my 5cc

[bhusebye]

If you use Xmodem and used set BAUD 115200, make sure you do NOT boot the switch after XModem is done transferring.   Once it is done transfering do this:

set BAUD 9600

---

run the boot command

switch: boot flash:c3750-ipbasek9-mz.122-25.SEE3.bin or whichever file is in your flash after transferring

[dchenault77]

I have just figured out how to do this on my Cisco 3750 switch.  Baud rate was at 115200 and now I have it back to 9600 even after a reboot.  Simply boot the switch holding the mode button to get to the recovery prompt.  No need to flash_init.  Simply type "unset BAUD" then power cycle the switch and it's back to 9600 baud.

[bhusebye]

I figured it out, it just took a bunch of Google hunting to find the person
who was right.