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Upgrade/Downgrade ASR9K IOS-XR 4.3.1 to 5.1.3 and vice versa

Greetings!

Is there a document available for upgrading ASR9K IOS-XR from 4.3.1 to 5.1.3 as well as downgrading 5.1.3 to 4.3.1?

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Re: Upgrade/Downgrade ASR9K IOS-XR 4.3.1 to 5.1.3 and vice versa

First do an upgrade to 4.3.4 and then to 5.1.3 ...

 

It is safe way.

 

You can find documents on https://www.cisco.com/web/Cisco_IOS_XR_Software/index.html

 

 

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