A Typical xDSL Network
An xDSL network consists of an xDSL modem or CPE, a DSLAM, and/or an aggregator. In DSL systems, both the DSLAM function and the aggregation function can be in the same platform. The function of the CPE is to act as the customer interface and can be a router, a bridge, or both. DSLAM is used to aggregate individual subscriber lines from the CPE. Figure 7-8 shows a typical xDSL network.
Figure 7-8. A Typical xDSL network
xDSL supports a variety of services and applications. Some of the services that are supported include the following:
Digital video
VoIP
High-speed Internet
Video on demand
Interactive games
Interactive shopping ...
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