Abstract
New generation networks (NGN) are based on revolutionary aspects in IT and telecom fields. Huge throughput as well as a simplified infrastructure are based on the data center result of virtualization and cloud computing. Nevertheless, a very important question about the management part is always relevant, regardless of QoS management, of business, or of security. The chapter aims to propose a management architecture, which invokes the notion of broker and also of controller to centralize the management of networks and services.
TopBackground: Ngn Architecture And Management
This part will be devoted to present the NGN network, more precisely the architecture and novelties used such as SDN and NFV, as well as the NGOSS referential that provides a Telecom-oriented management framework.
Key Terms in this Chapter
Network Function Virtualization (NFV): Is about virtualizing the network services and functions currently made available by dedicated and proprietary hardware.
New Generation Network (NGN): It's a new communication network architecture. The principle is to use the packet switching technologies to transport all telecommunications services.
Service Level Agreements (SLA): Is a document that defines quality of service (QoS), a prescribed service between a service provider and a customer; these are contract-based clauses that define the specific objectives expected and the level of service.
Enhanced Telecom Operations Map (eTOM): Is a process reference framework for telecommunications operators. It is a TM forum industrial standard adopted at the new generation network with a set of processes for OSS/BSS management.
Broker: A broker is an intermediary between customers and service providers. The broker can perform several tasks that are the receipt and transmission of orders, the compensation, or simply the maintenance and account management of customers.
New Generation Operations Systems and Software (NGOSS): It is an innovative integrated program for the development and deployment of systems and software. NGOSS is part of the TMForum global technical program.
Quality of Service (QoS): Is the ability to convey a given type of traffic in good conditions, in terms of availability, throughput, delay, jitter, packet loss rate.
Controller: A controller in an SDN network is the application that acts as a central and strategic control point, which manages flow control to the switches (Southbound) and applications and business logic (Northbound).
Software-Defined Networking (SDN): Is a network architecture model that allows network administrators to manage network services by abstraction of features, separating the control part from the data part.
IP Multimedia Subsystem (IMS): Is a standardized next-generation network (NGN) architecture that provides multimedia services.