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Glossary
Avaya C460 Reference Guide 249
use standardized MIB formats that enable any SNMP and RMON tool to monitor
any device defined by a MIB.
Module
A self-contained communications unit that may be used in combination with other
units. Examples include individual Avaya P330 units and cards that slot into the
Avaya P580/P882 Device.
Multicasting
A method of information transmission in which copies of the packet are delivered to
multiple ports, but only a subset of all possible destinations.
NAS
Network Access Server. A network device that allows access to a network (e.g., the
Avaya C460).
Netmask
A portion of an IP address that identifies the bits that denote the network number.
Network
A collection of computers, printers, routers, switches, and other devices that can
communicate with each other over some transmission medium. A network can
consist all or in part of subnetworks.
Network Agent
A special control module that interfaces between the network manager and the
managed devices, using the MIB as a management terms dictionary. Network
Agents relay device events and execute instructions via embedded software.
Network Mask
A portion of an IP address that identifies the bits that denote the network number.
NMS
Network Management Station. A station that is responsible for managing all or part
of a network. An NMS communicates with Network Agents to help keep track of
network statistics and resources.
Node
A point of interconnection to a network or a junction of two or more lines in a
network. A node can be a computer or some other device, such as a printer. Every
node has a unique network address.
NSAP
Network Service Access Point. An ISO-specified network address.