A specific location where there are one or more ICT equipment entities, facility terminations, nodal locations, or administrative operations, e. g. building

A process concerned with surveillance of the network as a whole. It includes activities for coordination and assigning priorities to maintenance actions. The information necessary to support this process comes from alarms, measurements, and indicators of operational (including congestion) status. [T1.226-1992]

The (a) ability of a network to maintain or restore an acceptable level of performance during network failures by applying various restoration techniques, and (b) mitigation or prevention of service outages from network failures by applying preventive techniques. [T
1. Rpt24-1993]

The analytical processes for estimating how well network services will be affected and restored with transparencies to the users as a result of a failure.

In the ITU-T International X.121 format, the sets of digits that comprise the complete address of the data terminal end point.
Note: For an NTN that is not part of a national integrated numbering format, the NTN is the 10 digits of the ITU-T X.25 14-digit address that follow the Data Network Identification Code (DNIC). When part of a national… (Read More →)

Synonym for demarcation point.

Network equipment that provides functions necessary for network operation of ISDN access protocols.
Note: Network termination provides functions essential for transmission services.

In Integrated Services Digital Networks (ISDN), a functional grouping of customer-premises equipment that includes functions that may be regarded as belonging to OSI Layer 1, i.e., functions associated with ISDN electrical and physical terminations on the user premises.
Note: The NT1 forms a boundary to the network and may be controlled by the provider of the ISDN services.

In Integrated Services Digital Networks (ISDN), an intelligent device that may include functionality for OSI Layers 1 through 3 (dependent on individual systems requirements).

The specific physical, i.e., real, or logical, i.e., virtual, arrangement of the elements of a network.
Note 1: Two networks have the same topology if the connection configuration is the same, although the networks may differ in physical interconnections, distances between nodes, transmission rates, and/or signal types.
Note 2: The common types of network topology are illustrated [refer to the… (Read More →)