Hi all
I need to know how to downgrade a Cisco C9300-48U from rel.:cat9k_iosxe.17.09.04a.SPA.bin (Cupertino) to cat9k_iosxe.16.09.01.SPA.bin (Fuji).
The release notes says that Microcode Downgrade is a necessary prerequisite.
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-9/release_notes/ol-17-9-9300/upgrading_the_switch_software.html
My question is: Can I use “install commands” for downgrade or should I use “request platform software commands” ?
Reading the following table seems that it possible downgrade from 16.12.1 or later ( in my case 17.09.04a ) to IOS XE Fuji 16.9.1 using the request platfrom method only.
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When downgrading from ...
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To one of These Releases
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by Using...
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Action For Microcode Downgrade
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Cisco IOS XE Gibraltar 16.12.1 or a later release
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Cisco IOS XE Everest 16.6.1 through Cisco IOS XE Everest 16.6.6
Cisco IOS XE Fuji 16.9.1 through Cisco IOS XE Fuji 16.9.2
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install commands
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Microcode will roll back automatically as part of the software installation. No further action is required.
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request platform software commands or or bundle boot
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Manually downgrade the microcode before downgrading the software image.
Enter the hw-module mcu rollback command in global configuration mode, to downgrade microcode.
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Probably I’m wrong because the request platform method is deprecated, but, please I need a confirm.
p.s. I hope that downgrade from 17.09.04a to 16.9.1 could be done directly without intermediate IOS (16.9.2) passing
Thanks and have a nice day
Fabrizio
