Cabletron Systems CSX100 series, User Manual, Page: 140 / 153

ISDN Router 126
MAC layer/address
Media Access Control layer/address defined by the IEEE 802.3 specification
which defines media access including framing and error detection. Part of
the OSI reference model data link layer.
Metric
An algorithm used by routers to determine the best path for transmitting
packets to a remote destination based on considerations such as time, delay,
cost, etc.
MODEM
Modulator/Demodulator. A device that converts digital signals to/from
analog signals for transmission over analog communications lines.
Multi-Link Protocol
A protocol, defined in RFC 1717, defines a way to perform inverse
multiplexing on the TCP/IP Point-to-Point Protocol (PPP); i.e., the ability to
use multiple serial WAN channels for transferring one datastream. With
MLP, a user can send and receive data over both B-channels in an ISDN
basic-rate interface connection.
NetWare
A network operating system developed by Novell, Inc. providing shared
access to files and other network services. IPX is the main protocol.
Network Layer
Layer 3 of the OSI reference model, which provides the protocol routing
function.
Node
Refers to a termination point for communication links; entity that can access
a network.
NT1
Network Terminator 1. Termination of the ISDN line at the end user’s side of
the connection.
OSI
Open System Interconnection. An international standard developed by ITU
(formally CCITT) and ISO (International Standards Organization) to
facilitate data networking multi-vendor interoperability. The OSI Reference
Model defines seven layers, each providing specific network functions.