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DCP Series Telcon Message Manual - Public Support Login - Unisys

DCP Series Telcon Message Manual - Public Support Login - Unisys

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Glossary<br />

Network Management Services (NMS)<br />

The group of network control and reporting functions that establishes, maintains, and<br />

modifies the operations of the <strong>Telcon</strong> communication network. NMS supports network<br />

administration through persons or programs that maintain the operational capabilities of<br />

the network. NMS commands are the <strong>Telcon</strong> equivalent of the CMS 1100 communication<br />

system administrator (CSA) commands.<br />

network resiliency<br />

A feature that maintains network integrity when hardware components or connections<br />

between components in the network fail. This is accomplished through one of two<br />

methods. In the first method, alternate paths through a network are established between<br />

two network users. If a component fails (breaking one of the paths) an alternate path is<br />

used. In the second method, redundant hardware components are installed. If a<br />

component fails, a backup component is used.<br />

Nine Thousand Remote (NTR)<br />

A program that controls communication between a <strong>Telcon</strong> network and any terminal using<br />

NTR batch communication protocol.<br />

Nine Thousand Remote Line Protocol Handler (NTRLPH)<br />

Services the line protocol for remote batch sites using the NTR protocol.<br />

Nine Thousand Remote Virtualizer Protocol Converter (NTRV2R)<br />

Converts the NTR protocol to the RB2 host protocol for remote batch sites using the NTR<br />

protocol.<br />

NMS<br />

NTRLPH<br />

NTRV2R<br />

O<br />

See Network Management Services.<br />

See Nine Thousand Remote Line Protocol Handler.<br />

See Nine Thousand Remote Virtualizer Protocol Converter.<br />

Open Systems Interconnection (OSI)<br />

An ISO communication standard network protocol. OSITS is one of the program products<br />

from the Open Systems products available for <strong>Telcon</strong>. Enables the computer systems of<br />

multiple vendors to communicate. OSI is based on standard protocols developed by ISO<br />

and defined in the ISO Reference Model (usually called the OSI model, as opposed to the<br />

TCP/IP model). OSI architecture has seven layers: physical layer (layer 1), data-link layer<br />

(layer 2), network layer (layer 3), transport layer (layer 4), session layer (layer 5),<br />

presentation layer (layer 6), and application layer (layer 7). Each layer has specific<br />

functions, communicates with peer entities (those in the same layer), performs services<br />

for the next higher layer, and requests services from the next lower layer. See also layers.<br />

OSI<br />

See Open Systems Interconnection.<br />

7436 0728–303 Glossary–11

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