ISE 2.0 supports migration from ACS 5.5 and 5.6 only.
ISE 2.1+ supports migration from ACS 5.5 and later.
ACS version older than 4.x cannot migrate to ISE. You must first upgrade from ACS 4.x to either ACS 5.5 or ACS 5.6 before migrating to ISE 2.0. This is a multi-step process. We recommend a fresh install of ISE with manual configuration or using import/export tools.
ACS versions less than 5.5 need to be upgraded to either ACS 5.5 or later before migrating to ISE.
ACS 4.x to ACS 5.x
For customers to migrate to ACS 5.5 or ACS 5.6, they need to be in one of the ACS 4.x versions
ACS 5.x has a significantly different architecture than ACS 4.x. The migration might not carry over a lot of configuration automatically. You might have to manually carry over configuration or use import/export tools. Here are the links that speaks about what objects are supported/not supported during migration.
If customers are in prior version of ACS 5.x, you have to upgrade to ACS 5.5 / 5.6 first before migrating to ISE 2.0. For migrating to ISE 2.1, your customer be in one of the last 4 releases of ACS( ACS 5.5/ 5.6/ 5.7 or 5.8).
If your customers interim goal is to upgrade to the latest ACS version based on the EOL then upgrade to the latest version of ACS 5.8.
Please follow the link for detailed procedure for migration. Here are the upgrade paths for the ACS 5.x versions. The ACS versions that supports migration to ISE are in Bold letters.
The Migration tool guide is a technical document that discusses the procedure of migrating from ACS to ISE.
It details the migration process and provides information on the objects, character sets supported and differences between ACS and ISE.
ACS to ISE Migration: Planning
ACS to ISE Migration: Preparation
This video tutorial covers Part III of the three part video tutorials for performing ACS to ISE migration covering the Migration process and demonstration. The 3 part video tutorial series will provide an in-depth discussion on Cisco Access Control Server(ACS) to Cisco Identity Services Engine(ISE) migration useful for customers, partners, Sales AS and other participants who are planning this migration.
ACS to ISE Migration: Migration Process and Demonstration
Topics covered would include discussion on configuration gaps, exceptions, fixes and workarounds across all the configuration areas of ACS. Preparing your staging environment, Migration tool and general pre-requisites and frequently asked questions.
Migration: Introduction, Environment, and Process Overview
Introduction: 2min 15 sec
Setting up Staging Environment: 2min 15sec - 6min 50 sec
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