i accidentally formatted my client cisco catalyst 3560 v2 24 ps. Now no firmware inside. Lucky i got another same switch for standby. my question here, how to backup firmware from standby switch to my client switch? im new in this field.perhaps any 1 can give instruction to help...btw, the firmware is flash:/c3560-ipbasek9-mz.122-58.SE2/c3560-ipbasek9-mz.122-58.SE2.bin. ty

  • Actually, that is the OS (IOS). The ROMON is more akin to firmware. I don't think you would call Windows firmware; more likely, you would call the BIOS firmware.
    – Ron Maupin
    May 25, 2016 at 14:32
  • Did any answer help you? If so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you could provide and accept your own answer.
    – Ron Maupin
    Aug 14, 2017 at 4:10

1 Answer 1


Source Healthy Switch : A

Destination Unhealthy Switch : B

On the A switch;

A(config)#tftp-server flash:/c3560-ipbasek9-mz.122-58.SE2/c3560-ipbasek9-mz.122-58.SE2.bin

On the B Switch ;

Enter the Rommon (Hint: Ctrl + Brk)

rommon 1> set

rommon 2> IP_ADDRESS=192.168.X.X (B Switch IP address Temporary)

rommon 3> IP_SUBNET_MASK=X.X.X.X (B Switch Mask)

rommon 4> DEFAULT_GATEWAY=X.X.X.X (Default Gateway IP)

rommon 5> TFTP_SERVER=X.X.X.X (A Switch IP address)

rommon 6> TFTP_FILE=c3560-ipbasek9-mz.122-58.SE2.bin

rommon 7> tftpdnld

Invoke this command for disaster recovery only.

WARNING: all existing data in all partitions on flash will be lost! Do you wish to continue? y/n: [n]: y

rommon 8> reset

  • I'm not too sure if tftpdnld is available in some of the Cisco switches. As a backup you may have to use a serial console to transfer a file to your switch using xmodem transfer. Link:- community.spiceworks.com/how_to/…
    – user4565
    May 25, 2016 at 21:21

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.