TP-Link T2500G-10MPS T2500G-10MPSUN V1 Configuration Guide - Page 597

Configuring Network Security Figure 1-3 Network Topology of PPPoE ID-Insertion Network Security Client Switch BRAS PPPoE Server RADIUS Server AAA AAA stands for authentication, authorization and accounting. On TP-Link switches, this feature is mainly used to authenticate the users trying to log in to the switch or get administrative privileges. The administrator can create guest accounts and an Enable password for other users. The guests do not have administrative privileges without the Enable password provided. AAA provides a safe and efficient authentication method. The authentication can be processed locally on the switch or centrally on the RADIUS/TACACS+ server(s). As the following figure shows, the network administrator can centrally configure the management accounts of the switches on the RADIUS server and use this server to authenticate the users trying to access the switch or get administrative privileges. Figure 1-4 Network Topology of AAA Users Switches RADIUS Server Configuration Guide 570