How fast is a cable modem?
Cable modem speeds vary widely, depending on the cable modem system, cable network architecture, and traffic load. In the downstream direction (from the network to the computer), network speeds can be anywhere up to 27 Mbps, an aggregate amount of bandwidth that is shared by users. Few computers will be capable of connecting at such high speeds, so a more realistic number is 1 to 3 Mbps. In the upstream direction (from computer to network), speeds can be up to 10 Mbps. However, most modem producers have selected a more optimum speed between 500 Kbps and 2.5 Mbps. An asymmetric cable modem scheme is most common. The downstream channel has a much higher bandwidth allocation (faster data rate) than the upstream, primarily because Internet applications tend to be asymmetric in nature. Activities such as World Wide Web (http) navigating and newsgroups reading (nntp) send much more data down to the computer than to the network. Mouse clicks (URL requests) and e-mail messages are not bandwidt
Cable modem speeds vary widely. In the downstream direction (from the network to the computer), speeds can be anywhere up to 36-Mbps. Modems this fast are not currently on the market, but should appear some time in 1997. Few computers will be capable of connecting at such high speeds, so a more realistic number is 3 to 10-Mbps. In the upstream direction (from computer to network), speeds can be up to 10-Mbps. However, most modem producers will probably select a more optimum speed of between 200 Kbps and 2 Mbps. In the first few years of cable modem deployment, an asymmetric setup will probably be more common than a symmetric setup. In an asymmetric scheme, the downstream channel has a much higher bandwidth allocation (faster data rate) than the upstream. One reason is that the current Internet applications tend to be asymmetric in nature. Activities such as World Wide Web (http) navigating and newsgroups reading (nntp) send much more data down to the computer than to the network. Mouse
Cable modem speeds vary widely, as determined by your cable company. In general, download speeds are up to 100 times faster than a 56K modem, while upload speeds are between 300K-768K. Check with your cable company for specific speeds. But, either way, be assured that Toshiba DOCSIS modems support maximum DOCSIS transfer rates. Today’s cable modem deployments are asymmetric. In an asymmetric scheme, the downstream channel has a much higher bandwidth allocation (faster data rate) than the upstream. One reason is that current Internet applications tend to be asymmetric in nature. Activities such as World Wide Web (http) navigating and newsgroup reading (nntp) send much more data down to the computer than to the network. Mouse clicks (URL requests) and e-mail messages are not bandwidth intensive in the upstream direction. Image files and streaming media (audio and video) are very bandwidth intensive in the downstream direction.
