Hi,
You have to follow upgrade path as SEP 11.x--> SEP 12.1 RU1 --> SEP 12.1 RU1 MP1
Are you using custom policies or default policies? Have specifc setting which you don't wish to loose?
I would suggest to go with fresh install of SEP 12.1 RU1 MP1.
If don't want to go with fresh install, there are two methods to move Symantec Endpoint Protection Manager (SEPM) from one machine to another:
Method 1: if the SEPM server keeps the same IP and host name, you can refer to "Best Practices for Disaster Recovery with the Symantec Endpoint Protection Manager"
http://www.symantec.com/business/support/index?pag....
Method 2: if the new SEPM server has a different IP and host name, there are two alternatives:
1. Use replication to install a new SEPM and keep the policy the same with old SEPM. See "How to move Symantec Endpoint Protection Manager from one machine to another"
http://www.symantec.com/business/support/index?page=content&id=TECH104389
2. Install a new SEPM, then use the Sylink file to establish communication between the new SEPM and the existing SEP client through sylink replacer tool.
Note : Sylink replacer tool is most commonly used option because it's easy to use.
Please go through following thread for more details:
https://www-secure.symantec.com/connect/forums/migration-clients-other-server-sepm#comment-5229601
Link for more information :
http://www.symantec.com/business/support/index?pag...