Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Computing | Fiber Distributed Data Interface (FDDI) A 100 Mbit/s ANSI standard local area network architecture, defined in X3T9.5. The underlying medium is optical fibre (though it can be copper cable, in which case it may be called CDDI) and the topology is a dual-attached, counter-rotating token ring. FDDI rings are normally constructed in the form of a "dual ring of trees". A small number of devices, typically infrastructure devices such as routers and concentrators rather than host computers, are connected to both rings - these are referred to as "dual-attached". Host computers are then connected as single-attached devices to the routers or concentrators. The dual ring in its most degenerate form is simply collapsed into a single device. In any case, the whole dual ring is typically contained within a computer room. This network topology is required because the dual ring actually passes through each connected device and requires each such device to remain continuously operational (the standard actually allows for optical bypasses but these are considered to be unreliable and error-prone). Devices such as workstations and minicomputers that may not be under the control of the network managers are not suitable for connection to the dual ring. As an alternative to a dual-attached connection, the same degree of resilience is available to a workstation through a dual-homed connection which is made simultaneously to two separate devices in the same FDDI ring. One of the connections becomes active while the other one is automatically blocked. If the first connection fails, the backup link takes over with no perceptible delay. Usenet newsgroup: news:comp.dcom.lans.fddi. (1994-12-13). Source: The Free On-line Dictionary of Computing. |
Electrical Engineering | An American National Standards Institute(ANSI)-specified standard for fiber optic links with data rates up to 100 Mbit/s. The standard specifies:multimode fiber;50/125, 62. 5/125 or 85/125 core-cladding specification; on LED or laser light source, and 2 kilometers for unrepeated data transmission at 40 Mbit/s. Source: European Union. (references) |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
FDDI rings are normally constructed in the form of a "dual ring of trees" (see network topology). A small number of devices, typically infrastructure devices such as routers and concentrators rather than host computers, are connected to both rings - these are referred to as "dual-attached". Host computers are then connected as single-attached devices to the routers or concentrators. The dual ring in its most degenerate form is simply collapsed into a single device. The whole dual ring is typically contained within a computer room although FDDI was also deployed as a Metropolitan area network as well.
This network topology is required because the dual ring actually passes through each connected device and requires each such device to remain continuously operational (the standard actually allows for optical bypasses but these are considered to be unreliable and error-prone). Devices such as workstations and minicomputers that may not be under the control of the network managers are not suitable for connection to the dual ring.
As an alternative to a dual-attached connection, the same degree of resilience is available to a workstation through a dual-homed connection which is made simultaneously to two separate devices in the same FDDI ring. One of the connections becomes active while the other one is automatically blocked. If the first connection fails, the backup link takes over with no perceptible delay.
FDDI has been largley made redundant by Fast ethernet and more recently Gigabit ethernet due to its speed, cost and ubiquity.
The four standards are:
FDDI-2, a second-generation FDDI network, also supports voice and video.
Source: from Federal Standard 1037C and used with permission from http://www.Foldoc.org
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Fiber distributed data interface."
Crosswords: FIBER DISTRIBUTED DATA INTERFACE |
| Specialty definitions using "FIBER DISTRIBUTED DATA INTERFACE": FDDI. (references) |
| Domain | Title |
Books | |
Source: compiled by the editor from various references; see credits. | |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day |
fiber distributed data interface | 5 |
| Source: compiled by the editor from various references; see credits. | |
| Language | Translations for "FIBER DISTRIBUTED DATA INTERFACE"; alternative meanings/domain in parentheses. | ||||||||||||||||||||||
Chinese | 光纖分散式資料介面 (FDDI), 光纖分佈數"接口 (FDDI), 光纖分佈式數"介面 (FDDI). (various references) | ||||||||||||||||||||||
Danish | fiberdistribueret datainterface (FDDI, fibre distributed data interface), FDDI (FDDI, fibre distributed data interface). (various references) | ||||||||||||||||||||||
Dutch | Fibre Distributed Data Interface-netwerk (FDDI, fibre distributed data interface), FDDI (FDDI, fibre distributed data interface). (various references) | ||||||||||||||||||||||
Finnish | FDDI-liitäntä (FDDI, fibre distributed data interface). (various references) | ||||||||||||||||||||||
French | FDDI (fibre distributed data interface), réseau FDDI (fibre distributed data interface). (various references) | ||||||||||||||||||||||
German | FDDI-Netzwerk (FDDI, fibre distributed data interface). (various references) | ||||||||||||||||||||||
Greek | τοπικό δίκτυο οπτικών ινών (FDDI, fibre distributed data interface), δίκτυο FDDI (FDDI, fibre distributed data interface). (various references) | ||||||||||||||||||||||
Italian | rete a fibre ottiche di grande portata (FDDI, fibre distributed data interface), interfaccia dati distribuiti su fibra ottica (FDDI, fibre distributed data interface), interfaccia dati distribuita a fibre ottiche (FDDI, fibre distributed data interface). (various references) | ||||||||||||||||||||||
Pig Latin | iberfay istributedday ataday interfaceay rede FDDI (FDDI, fibre distributed data interface). (various references) FDDI (FDDI, fibre distributed data interface), red FDDI (FDDI, fibre distributed data interface), red de distribución de datos por fibra óptica (FDDI, fibre distributed data interface). (various references) FDDI (FDDI, fibre distributed data interface), gränssnitt för fiberdistribuerade data (FDDI, fibre distributed data interface). (various references) | ||||||||||||||||||||||
Copyright © Philip M. Parker, INSEAD. Terms of Use.
