IBM 2220 Nways 300, Service Manual

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Select routes
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Control congestion.
network management station (NMS). A station that
runs IBM NetView for AIX and the 2220 Nways Switch
Manager. It is used to manage network topology,
accounting, performance, configuration, and error
reporting.
network node interface (NNI). An interface between
nodes in a communication network.
Network Support Center (NSC). A location from
which IBM remotely supports 2220 networks.
Networking BroadBand Services (NBBS). An IBM
architecture for high-speed networking that
complements ATM standards and provides access
services, transport services, and network control to user
traffic.
NIC. Network Information Center.
NMS. Network management station.
NNI. Network node interface.
NPT. Numbering plan table.
NR. Non-reserved.
NRT. Non-real-time.
NRZI. Non-return-to-zero inverted recording.
NRZ-1. Non-return-to-zero change-on-ones recording.
NSAP. Network service address point.
NSC. Network Support Center.
NSM. (See 2220 Nways Switch Manager)
NVDM. NetView Distribution Manager for AIX.
NTT. Nippon Telegraph & Telephone (Corporation).
numbering plan table (NPT). A set of parameters,
organized in origin NPT and destination NPT, that
defines a type of called ISDN numbers. A numbering
plan table is associated with each ISDN network
interface.
Nways 2220 Switch Manager (2220 Switch
Manager). An IBM licensed program that runs under
NetView for AIX to manage the 2220 Nways Switch
operation and configuration from a network
management station. It replaces the Nways Enterprise
Manager (NEM) which is no longer available.
Nways BroadBand Switch. Synonym for 2220 Nways
BroadBand Switch.
Nways Enterprise Manager (NEM). An IBM licensed
program that was used under NetView for AIX in a
network management station to manage Nways
Switches, routers, and bridges in a 2220 network (see
2220 Nways Switch Manager).
Nways Switch. Synonym for 2220 Nways BroadBand
Switch.
Nways Switch administration station (NAS). A
station attached to each 2220 to run the Control
Program, and control and service the Nways Switch
locally.
Nways Switch configuration station. A mandatory
OS/2 or AIX station that runs a stand-alone version of
the Nways Switch Configuration Tool Version 2 (NCT2)
and stores the centralized configuration database of the
NBBS network. An OS/2 station can be used as a
remote user console.
Nways Switch Configuration Tool Version 2
(NCT2). A component of the Nways Switch Control
Program that is used to configure physical and logical
resources. It is also used in stand-alone version under
OS/2 or AIX .
Nways Switch Control Program. The IBM licensed
program that runs in the NAS and adapters of the 2220
Nways Switch. It includes a CMIP agent to work with
the 2220 Switch Manager.
Nways 2220 Switch Manager for AIX. (See Nways
2220 Switch Manager)
Nways Switch Resource Control. A component of
the Nways Switch Control Program. It is used from the
NAS of an Nways Switch or from a remote user console
to control resources and configuration files.
OAM. Operation, administration, and maintenance.
OC3. Optical carrier level 3.
ONPT. Origin numbering plan table.
operation, administration, and maintenance (OAM).
A group of functions coded in specific ATM cells to
handle alarms and loopback tests on ATM connections.
optical fiber. In fiber optics technology, a wave guide
that propagates optical signals from light-generating
transmitters to light-detecting receivers.
OSI. Open systems interconnection.
packet loss ratio. The probability that a packet will
not reach its destination or not reach it in a specified
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2220 Models 300, 500, and 501: Service Guide