Netscape DIRECTORY SERVER 6.2 - DEPLOYMENT Deployment Manual page 115

Common Replication Scenarios
Figure 6-3 Multi-Master Replication Configuration (Four Masters)
Figure 6-4 illustrates a topology where each supplier server feeds data to two other
supplier servers (and to the consumer servers). Notice that there are only eight
replication agreements among the four supplier servers, as opposed to the twelve
agreements shown for the topology in Figure 6-3. The topology shown in
Figure 6-4 is beneficial in situations where the possibility of two or more servers
failing at the same time is negligible. Because each master has only two fan-outs,
such a configuration is useful in reducing the network traffic and making the
servers less busy.
Chapter 6 Designing the Replication Process 115