Red Hat Directory Server 8.0 Administrator's Guide

The root suffix dc=example,dc=comand the ou=people and ou=groups sub suffixes are stored
on server A. The l=europe,dc=example,dc=com and ou=groups suffixes are stored in on
server B, and the ou=people branch of the l=europe,dc=example,dc=com suffix is stored on
server C.
With cascading configured on servers A, B, and C, a client request targeted at the
ou=people,l=europe,dc=example,dc=com entry would be routed by the directory as follows:
First, the client binds to server A and chains to server B using Database Link 1. Then server B
chains to the target database on server C using Database Link 2 to access the data in the
ou=people,l=europe,dc=example,dc=com branch. Because at least two hops are required for
the directory to service the client request, this is considered a cascading chain.
3.7.2. Configuring Cascading Chaining Defaults Using the Console
Advanced Feature: Configuring Cascading
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