Red Hat DIRECTORY SERVER 7.1 - DEPLOYMENT Deployment Manual page 201

Figure 9-9 Database Topology for example.com Europe
The database links point to databases stored locally in each country. For example,
operation requests received by the
the branch are chained by a database link to a database on a server in Austin,
l=US
Texas. For more information about database links and chaining, refer to "Using
Chaining," on page 102.
The master copy of the data for
is kept in the
dc=com,
The data center in Europe contains the master copies of the data for the extranet.
The extranet data is stored in three databases, one for each of the main branches.
The following figure shows the database topology for the extranet.
example.com
dc=exampleCorp,dc=com
database, as shown by the box in Figure 9-9.
l=Europe
A Multinational Enterprise and Its Extranet
Europe server for the data under
and the root entry,
Chapter 9 Directory Design Examples 201