If an Identity Source is an AD/LDAP directory and there are multiple servers in your network that serve the same AD/LDAP directory, then you might want to link the identity source in DualShield to some or all of those AD/LDAP servers to create a load balancing cluster.
The context menu option "LDAP Connections" allows the system administrator to manage a server cluster, and provides options to load balance these servers using a selected load balancing mode.