Next-Generation Network
A Next-Generation Network (NGN) is the term given to describe a telecommunications packet-based network that handles multiple types of traffic (such as voice, data, and multimedia). It is the convergence of service provider networks that includes the public switched telephone network (PSTN), the data network (the Internet), and, in some instances, the wireless network as well.
* The NGN system offers key convergent multimedia services using a shared network characterized by several essential elements:
A unique and shared core network for all types of access and services.
A core network architecture divided into three layers: Transport, Control and Services.
Development of packet mode transport (IP flow transport in native IP, or on ATM in the short term with a progressive convergence to IP).
Open and standardized interfaces between each layer, and in particular for the Control and Services layers in order to allow third parties to develop and create services independent of the network.
Support for multiple applications (multimedia, real-time, transactional, total mobility) adaptable to the user and growing and varied capacities of access networks and terminals. * [Adapted from Moving towards the Next Generation Networks (NGN)]
Read Also:
- NiCad battery pack
NiCad stands for nickel-cadmium, the materials used in the battery packs for many notebook computers. NiCad batteries can provide considerable power, but they need to be recharged every three or four hours. Full recharging can take as much as twelve hours, although newer batteries can be recharged in just a few hours. Older NiCad batteries […]
- NiMH battery pack
NiMH stands for Nickel-Metal Hydride, the materials used in some battery packs. Unlike NiCad batteries, NiMH batteries do not use heavy metals that may have toxic effects. In addition, they can store up to 50% more power than NiCad batteries and do not suffer from memory effects.
- Nimrod Routing Architecture
An internetwork routing architecture that can be applied to routing both within a single routing domain and among multiple routing domains. Nimrod works by separating the identification of communicating entities, called endpoints, from any topological information. It uses Endpoint Identifiers (EIDs) to specify and identify entities connected to the network. The subsystems which are covered […]
- Northbridge
In Northbridge/Southbridge chipset architecture designs, the Northbridge is the chip or chips that connect a CPU to memory, the PCI bus, Level 2 cache and AGP activities. The Northbridge chips communicate with the CPU through the FSB. The Northbridge chip is one of two chips that control the functions of the chipset. The other is […]
- Novell
A prominentnetwork software company. Its flagship product, Netware, has been a corporate standard for building local-area networks (LANs) for more than a decade. Novell was founded in 1983.