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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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This section describes the definition and purpose of AAA.


Authentication, Authorization, and Accounting (AAA) provides a management mechanism for network security.

AAA provides the following functions:

  • Authentication: verifies whether users are authorized for network access.

  • Authorization: authorizes users to use particular services.

  • Accounting: records the network resources used by users.

Users can only use one or more security services provided by AAA. For example, if a company wants to authenticate employees that access certain network resources, the network administrator only needs to configure an authentication server. If the company also wants to record operations performed by employees on the network, an accounting server is needed.

In summary, AAA authorizes users to access specific resources and records user operations. AAA is widely used because it features good scalability and facilitates centralized user information management. AAA can be implemented using multiple protocols. Currently, the device uses the Remote Authentication Dial-In User Service (RADIUS) or Huawei Terminal Access Controller Access Control System (HWTACACS) protocol to implement AAA. In most cases, the RADIUS protocol is used.


AAA prevents unauthorized users from logging in to the device and improves system security.

Updated: 2019-08-09

Document ID: EDOC1000041694

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