How scalable is a Cisco Secure ACS solution?
A. Although many customers perceive that high-scale access servers need to run on UNIX platforms, this is not the case with Cisco Secure ACS. Cisco Secure ACS guidelines and performance analysis show that each copy of Cisco Secure ACS for Windows can support from 10,000 to 300,000 users per server and in excess of 35,000 devices, depending on configuration, platform, and use scenarios. The primary challenge in scaling a user access control framework is on the back end. Linked to a high-performance back-end database such as Oracle or Sybase, Cisco has deployed Cisco Secure ACS for Windows 2003 clustered deployments for customers with hundreds of thousands of user records.
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