i have installed 12.1 ru2 in one server and other is old one version 11.0.7. will replication work between both sepm version?

Hello,

Symantec does not support multi-version manager replication scenarios. Database schemas can change from version to version, and database corruption could occur if the schemas do not match. All Symantec Endpoint Protection sites that replicate should be running the same version.

From Maintenance Release 4 (11.0.4000.2295) onwards, all Symantec Endpoint Protection Managers will check database versions before setting up replication agreements with remote sites.

For details on how to migrate replicated sites, please review the migration Knowledge Base article pertaining to the release to which you are migrating up.

Does Symantec Endpoint Protection Manager support replication between sites running different versions?

Check the thread "PETE" comment

https://www-secure.symantec.com/connect/forums/replication-between-sites-sepm-121-ru2-mp1-and-sep-121-ru1-mp1ru2

so its mean that i need to upgrade 11.0.7 in 12.1 ru2 version?

Yes first you can upgrade 12.1.RU2 than replicate SEPM.

thanks.

Make sure both are at the same version than you can setup replication between the two. They need to be on the same version first.