Licensing Brief - Multiplexing—Client Access License (CAL) Requirements

Applies to all Volume Licensing Programs

Summary

This brief explains how multiplexing impacts the licensing of Microsoft® server operating systems and server products licensed under the Microsoft server/Client Access License (CAL) model. “Multiplexing” is when customers use hardware or software to pool connections, reroute information, or reduce the number of devices or users that directly access or use a product. Multiplexing can also include reducing the number of devices or users a product directly manages.

What’s New in this Brief

This brief replaces a previous version published in October 2010. The formatting and graphics have been updated.

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