Cabletron Systems 100BASE-FX, Руководство по кабельной продукции

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Glossary-5
Dual Homing to FNB
Dual Homing
A station connection method for FDDI which connects a device’s A/B
ports
to the M ports of two separate dual-attached concentrator devices,
providing fault-tolerance.
EEPROM
Electronic Erasable Programmable Read-Only Memory.
Encryption
A security process which encodes raw data into a form that cannot be
utilized or read without decryption.
EPIM
Ethernet Port Interface Module. EPIMs are added to
specifically-designed slots in Cabletron Systems Ethernet products to
provide connections to external media. EPIMs allow a great flexibility in
the media used to connect to networks.
Ethernet
A networking technology which allows any station on the network to
transmit at any time, provided it has checked the network for existing
traffic, waited for the network to be free, and checked to ensure the
transmission did not suffer a collision with another transmission. See also
CSMA/CD
.
Fault-Tolerance
The ability of a design (device or network) to operate at full or reduced
capacity after suffering a failure of some essential component or
connection. See also redundant.
FDDI
Fiber Distributed Data Interface. A high-speed networking technology.
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 access
and modification by users.
Firmware
The software instructions which allow a network device to function.
Flash EEPROM
See EEPROM.
FNB
Flexible Network Bus. A Cabletron Systems backplane design which
enables an FNB-configured chassis to support multiple network
technologies simultaneously.