3Com 3C10402B, Руководство администратора

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LOSSARY
fast packet switching A WAN technology for transmitting data, digitized voice, and digitized
image information. It uses short, fixed length packets.
FDDI Fiber Distributed Data Interface. An optical fiber-based token-passing ring
LAN technology that carries data at a rate of 100 Mbit/s.
FRAD Frame Relay Access Device. A wide-area networking device that forwards
traffic to and from the endpoint of a the network.
frame A structured group of bits sent over a link. A frame can contain control,
addressing, error detection, and error correction information. The term is
often used synonymously with the term
packet .
frame relay A packet-switching wide-area technology for interconnecting LANs at
high speeds.
G
gateway A network device that provides a means for network traffic to pass from
one topology, protocol, or architecture into a different topology, protocol,
or architecture.
gigabit Ethernet An Ethernet technology that raises transmission speed to 1 Gbit/s,
targeted primarily for use in backbones.
glare A condition in telephony where both ends of an available connection are
seized at the same time.
group mailboxes Mailboxes that are not associated with a single telephone but allow a
group of users to have joint access to a single mailbox.
H
H.323 An
ITU
standard for the transmission of real-time audio, video, and data
communications over packet-switched networks, such as local area
networks (LANs) and the Internet. H.323 is the basis for Internet
telephony.
header The control information added to the beginning of a transmitted
message. This might consist of packet or block address, destination,
message number and routing instructions.
hierarchical network A network with one host at its hub, which is the major processing center,
and one or more satellite processing units.