ACS5.1 migrate to ISE2.1

[Tony.Ji01]

Hi Guys, I am planning to migrate one ACS5.1 to ISE2.1

Seem the most straightforward way is to upgrade the ACS from 5.1 ~ 5.3 ~ 5.5 and then use migration tools to do rest of the job.

Just curious, is it necessary to install the latest path and then upgrade the ACS?

Many thanks,

Tony Ji

[nspasov]

Hi Tony-

Yes, you need to install the latest 5.1 patch before proceeding with the installation of 5.2. For more info about this and general information you can reference the release notes below:

http://www.cisco.com/c/en/us/td/docs/net_mgmt/cisco_secure_access_control_system/5-2/release/notes/acs_52_rn.html#wp71319

I hope this helps!

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[Tony.Ji01 · Accepted solution]

Hey Neno, just tried in the production environment. Seems deploying patch before upgrading is not necessary....

Regards,

Tony Ji

[nspasov]

Good to know Tony! Thanks for updating the thread with the solution! The last time I had worked with ACS 5.1 was 6+ years ago :) And I was simply going off what the release notes were stating:

...

Step 2 Install ACS 5.1 using the recovery DVD.

Step 3 Install the latest ACS 5.1 patch available on Cisco.com.

...

But, I am guessing that is what Cisco tested and confirmed as valid when doing and documenting the upgrade.

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