AAA implementation

Authentication, Authorization, and Accounting (AAA) provides a uniform framework for implementing network access management. This feature specifies the following security functions:

• Authentication—Identifies users and verifies their validity.

• Authorization—Grants different users different rights, and controls the users' access to resources and services. For example, you can permit office users to read and print files and prevent guests from accessing files on the device.

• Accounting—Records network usage details of users, including the service type, start time, and traffic. This function enables time-based and traffic-based charging and user behavior auditing.