Scalability

AAA is a template approach to security management that remains reliable and flexible as the network grows larger and more complex. By centralizing the security databases and supporting authorization, AAA avoids the nightmare of managing many user name/password combinations in a growing environment or the alternative “weak” security of using a small number of combinations. Locally stored authentication means any time there’s a potential of a compromised user name/password or termination of an employee, each device “should” be reconfigured. The more devices that exist, the greater the amount of effort. AAA avoids this in much the same way that server security is maintained under the same circumstances.