downgrade catalyst 3850 software

[bmizrahi]

Hello,

 I need to know how to downgrade software of catalyst 3850,

 from 3.7.2 to 3.6.3

 thanks,

[Murad]

Hi,

Check if you have rollback provisioning files’ in flash. If you have any, then apply rollback procedure.

use the following command for rollback.

switch# software rollback provisioning-file flash:packages.conf.00-

If you dont have files, then most probably you need to apply the same procedue like for upgrading but using earliar software version.

HTH

[jhager001]

I have done this on multiple switches, infact I am still rolling out to my switches.

The easiest way is to not have deleted the old files by issueing 'software clean', but if you have, you just have to go about the steps of putting an IOS onto your devices. 

1. download 3.6.3 IOS for your device

2. put it on a flash drive

3. plug flash drive in 3850 slot

4. copy from flash drive to switch flash
5. install the software.

You can transfer it from your PC to the switch through tftp, but utilizing the flash drive is much much much much much faster! I hope this could of been some help for you.