Option 2: Custom Site Link Bridge

If a network is not fully routed, disable the Bridge All Site Links option for the IP transport and configure site link bridges to map to the physical network connections. Additionally, if the IP network is fully routed but there are too many routes that the KCC should not consider, creating a custom site link bridge topology and disabling the automatic transitivity of site links will eliminate confusion. The KCC, by default, will consider all possible connections and bridges for replication.

Site link bridges can also be used to control replication flow of Active Directory. The two most common reasons for creating site link bridges are to control replication for failover of a hub-and-spoke network design and ...

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