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Configuration Guide for Cisco Secure ACS 4.2
OL-14390-02
Chapter 2 Deploy the Access Control Servers
Determining the Deployment Architecture
Figure 2-5 Campus WLAN
Regional WLAN Setting
In a given geographical or organizational region, the total number of users might or might not reach a
critical level for a single ACS. Small offices would not qualify for separate installations of ACSs and a
regional office might have sufficient reserve capacity. In this case, the small offices can authenticate
users across the WAN to the larger regional office. Once again, you should determine that this does not
pose a risk to the users in the remote offices. Assess critical connectivity needs against the reliability and
throughput to the central ACS.