SMC Networks SMC7204BRA manual Domain name, Download, Ethernet, Filtering rule

Terminology

domain name

A domain name is a user-friendly name used in place of its associated IP address.

For example, www.globespan.net is the domain name associated with the IP address 209.191.4.240. Domain names must be unique. Their assignment is controlled by the Internet Corporation for Assigned Names and Numbers (ICANN). Domain names are a key element of URLs, which identify a specific file at a web site, e.g., http://www.globespan.net/index.html.

See also DNS.

download

To transfer data in the downstream direction, i.e., from the Internet to the user.

DSL (Digital Subscriber Line)

A technology that allows both digital data and analog voice signals to travel over existing copper telephone lines.

Ethernet

The most commonly installed computer network technology, usually using twisted pair wiring. Ethernet data rates are 10 Mbps and 100 Mbps. See also BASE-T,100BASE-T, twisted pair.

filtering

To screen out selected types of data, based on filtering rules. Filtering can be applied in one direction (upstream or downstream), or in both directions.

filtering rule

A rule that specifies what kinds of data a routing device will accept and/or reject. Filtering rules are defined to operate on an interface (or multiple interfaces) and in a particular direction (upstream, downstream, or both).

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