Cisco 3.3 User Manual page 83

Chapter 2 Deployment Considerations
Figure 2-1 Small Dial-up Network
Modem
78-16592-01
In the small LAN environment, see
a single Cisco Secure ACS internal to the AAA client, protected from outside
access by a firewall and the AAA client. In this environment, the user database is
usually small, there are few devices that require access to the Cisco Secure ACS
for AAA, and any database replication is limited to a secondary Cisco Secure
ACS as a backup.
Server-based
dial access
PSTN
Cisco Secure
Access Control
Server
In a larger dial-in environment, a single Cisco Secure ACS with a backup may be
suitable, too. The suitability of this configuration depends on network and server
access latency. Figure 2-2
scenario the addition of a backup Cisco Secure ACS is a recommended addition.
Basic Deployment Factors for Cisco Secure ACS
Figure 2-1, network architects typically place
shows an example of a large dial-in arrangement. In this
User Guide for Cisco Secure ACS for Windows Server
Network
2-7