FDDI to Host

FDDI

Fiber Distributed Data Interface. A high-speed networking

 

architecture. FDDI requires that stations only transmit

 

data when they have been given permission by the

 

operation of the network, and dictates that stations will

 

receive information at pre-determined intervals. See also

 

Token.

Fiber optics

Net work m e d i a made of thin fila m en t s o f gl a s s

 

surrounded by a plastic cladding. Fiber optics transmit and

 

receive information in the form of pulses of light. See

 

multimode and single mode.

File

A collection of related data.

Fileserver

A network server device which stores and maintains data

 

files for the use and modification of users on the network.

Firmware

The software instructions which allow a network device to

 

function. See also Image file.

Flash EEPROM

See EEPROM.

FNB

Flexible Network Bus. A Cabletron backplane design

 

which enables an FNB-configured chassis to support

 

multiple network architectures simultaneously.

Frame

A group of bits that form a discrete block of information.

 

Frames contain network control information. The size and

 

composition of a frame is determined by the network

 

protocol being used.

Gateway

A router.

Heartbeat

See SQE.

Hexadecimal

A base 16 numerical system. Digits in hexadecimal run

 

from 0 to 9 and continue from A to F, where F is

 

equivalent to the decimal number 16.

Host

A device which acts as the source or destination of data on

 

the network.

GL-6

EMM-E6 User’s Guide

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Image 191
Cabletron Systems EMM-E6 Ethernet manual Fddi, Fnb