Hi E.DR_91,
An accounting scheme defines the accounting method used for user accounting. An accounting scheme is applied to a domain and is used together with the authentication scheme, authorization scheme, and server template configurations in the domain to implement user authentication, authorization, and accounting.
RADIUS accounting means that the RADIUS server performs accounting for users.
Accounting packets are classified into Accounting-Request packets and Accounting-Response packets. Each time the device sends an accounting request packet and receives an accounting response packet from the server, accounting is successful. If no accounting response packet is received from the server, accounting fails.
After the accounting function is enabled, the device sends an Accounting-Request packet to the AAA server. The AAA server performs accounting and audit on the user based on the packet information. RADIUS accounting request packets are classified into the following types:
Accounting-Start Request packet: After a user successfully authenticates the user and starts to access network resources, the device sends an accounting-start request packet to the RADIUS server.
Accounting-stop request packet: When a user is disconnected (the connection can also be disconnected from the access server), the device sends an accounting-stop request packet to the server.
Real-time accounting request packets: To reduce accounting errors and prevent the accounting server from receiving Accounting Stop Request packets, configure real-time accounting on the device. Then, the device periodically sends real-time accounting request packets to the RADIUS server.
I hope it helps!
