Networking Glossary
- BOC Bell Operating Company. More commonly referred to as RBOC for Regional Bell Operating Company. The local telephone company in each of the seven U.S. regions. [Source: RFC 1208]
- (Bridge) A device that has now been surpassed by the LAN switch. A bridge is used to connect two LAN segments together which use the same protocols and filter data based on MAC addresses. Bridges function at the Data Link layer of the OSI model and are mostly software based. [Source: Internetwork Training]
- bridge A device that connects two or more physical networks and forwards packets between them. Bridges can usually be made to filter packets, that is, to forward only certain traffic. Related devices are: repeaters which simply forward electrical signals from one cable to another, and full-fledged routers which make routing decisions based on several criteria. In OSI terminology, a bridge is a Data Link Layer intermediate system. See repeater and router. [Source: RFC 1208]
- broadband Characteristic of any network that multiplexes multiple, independent network carriers onto a single cable. This is usually done using frequency division multiplexing. Broadband technology allows several networks to coexist on one single cable; traffic from one network does not interfere with traffic from another since the "conversations" happen on different frequencies in the "ether," rather like the commercial radio system. [Source: RFC 1208]
- broadcast A packet delivery system where a copy of a given packet is given to all hosts attached to the network. Example: Ethernet. [Source: RFC 1208]
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