Replication system domain refers to all replication system components that use the same ID Server. You can set up multiple replication system domains, with the following restrictions:
Replication Servers in different domains cannot exchange data. Each domain must be treated as a separate replication system with no cross-communication between them. You cannot create a route between Replication Servers in different domains.
A database can be managed by only one Replication Server in one domain. Any given database is in one, and only one, ID Server’s domain. This means you cannot create multiple connections to the same database from different domains.
