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4331 ISR, Direct upgrade from 3.16.9S to 17.6.3 or 17.3.5

MauryJ
Beginner
Beginner

Hello all,

We have an ISR-4331 that is running IOS XE 3.16.09.5 and need to get it upgraded.   I see that both 17.6.3 and 17.3.5 are recommended releases.    
I did see that a ROMMON update is required.   Besides that, would we be able to upgrade directly to either of the recommended releases?   I didn't find any prerequisite versions, or upgrade paths, mentioned in the release notes.
Thanks

1 Accepted Solution

Accepted Solutions

georgehewittuk1
Beginner
Beginner

Yes I've upgraded with this 'jump' before from 3.x to 17.x i believe it is because of the architecture of the packages- as you righty stated need to make sure ROMMON is performed before as a pre-req as it's commonly outdated.

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3 Replies 3

georgehewittuk1
Beginner
Beginner

Yes I've upgraded with this 'jump' before from 3.x to 17.x i believe it is because of the architecture of the packages- as you righty stated need to make sure ROMMON is performed before as a pre-req as it's commonly outdated.

That's good to know, thanks @georgehewittuk1 .

And thanks @Leo Laohoo for the link to your installation guide.

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