A subscriber access environment can include various components, including subscriber access and authentication protocols.
The subscriber access protocols include:
The subscriber authentication protocols include the RADIUS server.
In addition to these components, a subscriber access environment would also include various access protocols (for example, DHCP) and might use local authentication instead of authenticating clients through a RADIUS server.
Figure 1 shows an example of a basic subscriber access network.
Figure 1: Subscriber Access Network Example