A Quick Tip To Change KCC Interval

by [Published on 2 March 2011 / Last Updated on 10 Jan. 2010]

This article explains how you can change the KCC Interval on Windows Domain Controllers.

KCC (Knowledge Consistency Checker) component builds/checks the Replication Topology every 15 minutes. This Active Directory component runs on every domain controller to check changes in the sites and then builds the Replication Topology. In a large environment, the KCC may take some time to evaluate the Replication Topology. Thus, it may decrease performance on the domain controllers. You can increase the KCC Interval by specifying the below mentioned registry entry and setting a value as per your requirement.

  • KEY Name: HKLM\System\CurrentControlSet\Services\NTDS\Parameters
  • Entry Name: Repl topology update period (secs)
  • Type: REG_DWORD
  • Value: 0x384 (this is the default value)

You can change the default value to ox890 or higher so that KCC invokes at the defined interval to re-evalaute the Replication Topology.

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The Author — Nirmal Sharma

Nirmal Sharma avatar

Nirmal Sharma is a MCSEx3, MCITP and was awarded the Microsoft MVP award in Directory Services and Windows Networking. He specializes in Microsoft Azure, Office 365, Directory Services, Failover Clusters, Hyper-V, PowerShell Scripting and System Center products. Nirmal has been involved with Microsoft Technologies since 1994. In his spare time, he likes to help others and share some of his knowledge by writing tips and articles on various sites and contributing to PowerShell-based Dynamic Packs for www.ITDynamicPacks.Net solutions.

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