EMM-E6 Ethernet User's Guide

FDDI to Host
GL - 6 EMM-E6 User’s Guide
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 Network media made of thin filaments of glass
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.
CH1Book Page 6 Wednesday, March 20, 1996 7:48 AM