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Exchange regime marked distinction and service business research methods

Author: YouZuo
Tutor: LiuZengJi
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: Label Switching Quality of Service parameters User service differentiation Service mode Bandwidth Allocation
CLC: TP393.4
Type: PhD thesis
Year: 2002
Downloads: 110
Quote: 2
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Abstract

Information technology has become an important feature of the global economy is one of a growing number of commercial applications developed to the Internet as a support. Networks, especially the Internet has become the largest information communication platform. In addition, the rapid development of multimedia technology to promote greater Internet booming at an alarming rate. Internet multimedia applications are emerging, growing number of multimedia information, the Internet has gradually moved from a single data transmission network to the data, voice, images and other multimedia information integrated transport network evolution. With the number of users and types of applications increases, the requirements of the Internet is also growing. QoS guarantees which solved the problem is a hot issue, and label switching technology is the Internet to provide QoS guarantee is an important article on the use of technology to provide QoS guarantee label switching system key technologies, namely the user service differentiation and identification of user and network services of services, in-depth research. The research work is divided into three parts. The first part (Chapter II) is a distinction between the user and the identity of the business. The distinction between business users and logos are the basis for providing QoS guarantees. In IP switching, by the user's business segments for the long and short flow stream, and to provide a different way of grouping the transfer. Existing classification methods to distinguish the business is rough and can only identify the network connection. To this end, based on the analysis, the authors proposed a scalable, can provide more detailed grained dynamic traffic identification and classification algorithms to provide end to end identification, and simulation verification. In MPLS, user services are grouped into different forwarding equivalence class (FEC), via {destination network address, source network address, destination port number, source port number, type of business TOS} combinations of elements can produce a variety of division method. However, existing solutions either for the user's needs, or is only considered to improve network resource utilization, have failed to find a balance between both. Authors propose a new method for traffic classification requirements to reconcile these two aspects, to provide end-assurance, and gives the theoretical analysis and the use of the actual network data validation. To distinguish and identify the user has to provide the corresponding service operations to guarantee QoS approach. The second part of this article is for the network to provide users with a service mode of research, including access to network resources - research and network bandwidth allocation framework to provide service level studies two parts, each composed of chapters III and IV. Chapter III solution is to identify the traffic flow has been assigned to the appropriate network resources (bandwidth) issue. The first part of this chapter is for a single traffic stream bandwidth allocation, propose an adaptive bandwidth adjustment algorithm, by using the actual data of the simulation show that the Internet can guarantee QoS parameters corresponding requirements, and consumes minimal bandwidth resources; this The latter presents a section similar to service Premium Service - PSP service, proposed the corresponding user access bandwidth management algorithms and methods. Use token bucket and queuing model performance analysis, and the use of network simulation software was validated Finally, use the PSP to-end QoS guarantee scheme. The fourth chapter analyzes the existing service model - Integrated Services (InteServ) and Differentiated Services (DiffServ) their respective advantages and disadvantages. On this basis, the paper presents a new market-based mechanisms and price leverage new services and service delivery framework STSA-p services. This type of service in different ways with the traditional services in that p service is a way of charging after the first service, that is, network services businesses for the user first, and then according to some measure of the effectiveness of services to users under charged accordingly . P services for a variety of applications, simulation and implementation of, respectively, from the perspective discussed. The third part of this thesis by the Chapters V and VI, the main is a combination of MPLS, the Internet services provided further discussion. In the fifth chapter, we propose a new realization ATM LSR adopted an adaptation, that is to AAL3 / 4 as a way of supporting MPLS adaptation, from a theoretical and practical point of view of using AAL3 / 4 than the use of Traditional AALS adaptation has the advantage, and conducted simulation. On this basis, the authors concluded was further promoted. Chapter 6, the first combination of the preceding discussion, the Internet provides the key technology Qos protection - packet forwarding and switching the essence of the analysis, pointing out the direction of improvement, and then proposed a new label switching system, and gives a useful special case - based on regional encoding label switching (Regionai Identification Label switohing / RILS).

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