ZyXEL Communications Prestige 128IMH, Руководство пользователя, Страница: 134 / 142

ZyXEL Prestige 128IMH User’s Guide
Page 19-2
¿ ù » ~
!
© |¥ ¼ © w ¸ q¼ Ë ¦ ¡ ¡ C
can use to obtain TCP/IP configuration information
from a central location on startup.
Bridge
A LAN device used to connect two different LANs so
that packets can be transmitted from one to the other.
A bridge works on a low level and does not take
higher-level protocols into consideration. A
switching hub is a type of bridge.
Broadcast
A network transmission intended for all of the
stations on a network.
Cascading The practice of connecting identical or similar LAN
devices such as hubs together directly so that they
function as one device. A collection of cascaded
devices is often called a stack.
Category 3, 4, 5
Communication cabling standards referring to the
quality of the transmission medium and whether or
not the cable includes transmission leakage shielding.
Collision Simultaneous data transmission on a network
medium, resulting in a garbled (and unreadable)
transmission. See CSMA/CD.
Collision Domain A section of a network isolated from other sections
by a switch, bridge or hub that detects and resolves
collisions locally so that there is less impact on the
entire network.
Community Name A part of an SNMP request, used as a rudimentary
form of password. An SNMP agent may grant
different levels of access to requests with different
community names.
Crossover Cable
A type of twisted-pair cable in which the wires at one
end have been reversed in order to match pinouts on a
hub or switch.
CSMA/CD Carrier Sense Multiple Access with Collision
Detection; a network communications protocol in
which each transmission source (i.e., station, server,
switch, etc.) monitors the main data channel for