IBM Tivoli and Cisco - Manual (Page 247)

Chapter 7. Network enforcement subsystem implementation 229
8. In the window in under Services Log File Configuration (Figure 7-12) change
Level of Detail to Full, and increase the file size from 2048 Kb as necessary.
Click Restart to apply the new configuration.
Figure 7-12 Log file management
Configuring a network device group in Cisco Secure ACS
To make Cisco Secure ACS interact with a Network Access Device (router,
switch, VPN concentrator, and so on), you must configure Cisco Secure ACS to
use the proper NAD information. In Cisco Secure ACS, a NAD is recognized as
an authentication, authorization, accounting (AAA)
client.