Like digital subscriber line (DSL) and fiber to the premises, cable Internet access provides network edge connectivity (last mile access) from the Internet service provider to an end user.
It is integrated into the cable television infrastructure analogously to DSL, which uses the existing telephone network.
If the HFC network is large, the cable modem termination system can be grouped into hubs for efficient management.
As the system grows, the CMTS can be upgraded with more downstream and upstream ports, and grouped into hub CMTSs for efficient management.
Most DOCSIS cable modems restrict upload and download rates, with customizable limits.
However, the operator has to monitor usage patterns and scale the network appropriately, to ensure that customers receive adequate service even during peak-usage times.