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Fixing Replication Topology Problems (Event ID 1311)

Updated: May 1, 2010

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

The Knowledge Consistency Checker (KCC) constructs and maintains the Active Directory replication topology automatically. Every 15 minutes, the KCC examines the sum of all directory partition replicas that reside on domain controllers in the forest, as well as administrator-defined settings for connections, sites, and site links.

Although generation of the replication topology occurs automatically, administrative configuration errors can result in an Active Directory replication topology that is inconsistent with the physical connections that are available. In Active Directory it is possible to create objects for which there is no physical network support. For example, Active Directory Sites and Services allows you to create a site object and assign subnet addresses that do not exist. The KCC will attempt to use these objects to create connections between domain controllers, but replication cannot occur because the network does not exist to support the replication topology as it is configured.

Event ID 1311 is logged in the Directory Service event log when the replication configuration information in Active Directory does not accurately reflect the physical topology of the network. Use the procedures in Event ID 1311: Replication configuration does not reflect the physical network to identify and fix topology problems.

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