Netopia Router PN Series Reference Manual page 281

GL-11
IP (Internet Protocol): A networking protocol developed for use on
computer systems that use the UNIX operating system. Often used
with Ethernet cabling systems. In this manual, IP is used as an
umbrella term to cover all packets and networking operations that
include the use of the Internet Protocol. See also TCP/IP .
IP address, IP host address, IP network address: See internet
address .
IP broadcast: See broadcast .
IP tunneling: See AURP .
IPX (Internet Package Exchange): A protocol used by Novell
Netware networks.
ISDN (Integrated Services Digital Network): A method of
transmitting data digitally over telephone lines.
ISP (Internet service provider): A company that provides
Internet-related services. Most importantly, an ISP provides Internet
access services and products to other companies and consumers.
LAPB (Link Access Procedure Balanced): The balanced-mode,
enhanced version of HDLC. Used in X.25 packet-switching networks.
Contrast with LAPD.
LAPD (Link Access Procedure on the D-channel: A protocol that
operates at the data link layer (layer 2) of the OSI architecture.
LAPD is used to convey information between layer 3 entities across
the frame relay network. The D-channel carries signaling information
for circuit switching. Contrast with LAPB.
LAN (Local Area Network): A privately owned network that offers
high-speed communications channels to connect information
processing equipment in a limited geographic area.
LAN Protocols: A range of LAN protocols supported by a frame
relay network, including Transmission Control Protocol/Internet
Protocol (TCP/IP), AppleTalk, Xerox Network System (XNS),
Internetwork Packet Exchange (IPX), and Common Operating System
used by DOS-based PCs.