ADTRAN Express 5210, Руководство пользователя

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Appendix D. Glossary
D-6 Express 5210 User Manual 61200208L1-1
ISDN
Integrated Services Digital Network. A network architecture that enables end-to-
end digital connections. The network supports diverse services through inte-
grated access arrangements and defines a limited set of standard, multipurpose
interfaces for equipment vendors, network providers, and customers. Inter-
working with a public switched telephone network is retained.
LAN
local area network. A privately owned network that offers high-speed communi-
cations channels to connect information processing equipment in a limited geo-
graphic area.
out-of-band
Signaling that is separated from the channel carrying information (voice, data,
video, etc.). Typically the separation is accomplished by a filter. The signaling
includes dialing and other supervisory signals.
packet
A message containing both control information and data. The control informa-
tion is used for routing the packet through a network to its final destination.
Contrast with frame relay frame.
packet-switching network
A telecommunications network based on packet-switching technology, wherein
a transmission channel is occupied only for the duration of the transmission of
the packet. Contrast with frame relay network.
parameter
A numerical code that controls an aspect of terminal and/or network operation.
Parameters control such aspects as page size, data transmission speed, and tim-
ing options.
ping
An internet protocol standard that provides loopback on demand for any device
in an IP network. One device "pings" another by sending a loopback request to
the device's IP address.
point-to-point
Type of communications link that connects a single device to another single
device, such as a remote terminal to a host computer.