Microsoft KB Archive/198552

= Windows NT Load Balancing Service Cluster Is Not Load Balancing =

Article ID: 198552

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition
 * Microsoft Windows NT Load Balancing Service

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This article was previously published under Q198552



SYMPTOMS
Windows NT Load Balancing Service (WLBS) is not load balancing an application or applications, and the default host handles all network traffic.



CAUSE
This problem occurs because a port rule is missing. By default, WLBS directs all incoming network traffic for the cluster IP address to the default host. This ensures that applications you do not want load balanced will behave properly.



RESOLUTION
To load balance an application across the cluster, you should create a port rule on every cluster host for the TCP/IP port or ports serviced by the application.

Additional query words: Convoy

Keywords: kbprb KB198552

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