| The use of Authentication, Authorization, and Accounting (AAA) affords the best methods for controlling user access, authorization levels, and activity logging. Privilege levels, as well as what commands each administrator is authorized to use based on the privilege level or account group membership, must be controlled and assigned accordingly. By enabling AAA on the network elements in conjunction with an authentication server, the administrators can easily add, modify, or delete accounts as well as add or remove command authorizations and privilege levels. The use of an authentication server provides the capability to assign network administrators and engineers to tiered groups that contain their associated or required privilege level. By configuring the network element to collaborate with an authentication server, it can enforce the appropriate authorization for each administrator. This requirement is applicable to network device management and is not applicable to the routing function. |
