Telecommunications Glossary of terms used on this site

There are 236 entries in this glossary.
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Term Definition
Adjaceny

Adjaceny is a relationship formed between selected adjacent routers and end nodes for the purpose of exchanging routing information.

ADM

An Add Drop Multiplexer, or ADM, is a device installed at an intermediate point on a digital circuit that enables new signals to enter and existing signals to exit. Add / Drop multiplexing can be performed on optical or electrical signals. The multiplexing device may operate on wavelengths, or it may convert between wavelengths and digital Time Division Multiplexing (TDM) signals.

Aliases (separate with |): Add / Drop Multiplexor
All to One Bundling

All to One Bundling is a User Network Interface (UNI) attribute where all Customer Edge Virtual Local Area Network (CE-VLAN) IDs are associated with a single Ethernet Virtual Connection (EVC).

ALNP

Aggregated Line and Node Protection

ANSI

The American National Standards Institute, or ANSI (http://www.ansi.org), oversees the creation, promulgation and use of thousands of norms and guidelines to enhance both the global competitiveness of U.S. business and the U.S. quality of life by promoting and facilitating voluntary consensus standards and conformity assessment systems, and safeguarding their integrity.

Aliases (separate with |): American National Standards Institute
APCP

Application Protection Constraint Policy

ATM

Asynchronous Transfer Mode, or ATM, is comprised of a group of protocols within the ATM model, based on an underlying mechanism to transport all data in a stream of fixed length packets, known as ATM cells of fifty-three (53) bytes, benefiting complex network switching and multiplexing functions. ATM is a connection-oriented technology where two (2) systems, or network endpoints share requirements and operational parameters to establish a connection.

Aliases (separate with |): Asynchronous Transfer Mode
Availability Performance

Availability Performance is a metric reflecting the percentage of time that a Service is useable.

Bandwidth Profile

A Bandwidth Profile is a characterization of ingress Service Frame arrival times and lengths at a User Network Interface (UNI) and a specification of the disposition of each Service Frame based on its level of compliance with the Bandwidth Profile.

Black Hole

A Black Hole is a situation when packets enter a network but do not emerge due to adverse conditions or poor system configuration within a portion of the network.

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