Quality of Service with Bandwidth

Quality of Service with Bandwidth Shivaji P. Mirashe, Dr. N.V. Kalyankar Abstract— This paper deals with providing Quality of Service (QoS) over IP based networks. We are going to give a brief survey about this topic, and present our work at this area. There are many solutions of the problem, but the standardization of the methods is not finished yet. At the moment there are two kinds of approaches of the reservation problem. The distributed method handles the network nodes independently, and get the nodes making their own admittance decisions along the reservation path (i.e. Border Gateway Reservation Protocol BGRP. The centralized way -we discuss in details-, which collects the network nodes into domains, and handles them using a network manager. Generally there are two significant parts of the network management: intra domain, and inter-domain. This article focuses on making reservations over several domains, which is the part of the inter-domain functions. Index Terms—Keywords are as Motivation and brief survey of providing QoS, IP QoS principles, IntServ, DiffServ, Bandwidth Broker, Inter-domain communication, Availability Information (AI) propagation, DS processing.
——————————  —————————— 1 INTRODUCTION IRST we give a short overview of the QoS providing over IP networks, and it’s reason for the existence. In section two we discuss the principles need to be taken to provide QoS over IP networks. In the rest of this sec- tion we describe IntServ and DiffServ, and the QoS archi- tecture using Bandwith Broker. At the end of this part we deal little with the ProFIS architecture. In the third chap- ter we introduce our inter-domain communication proto- col for the ProFIS, and at the end of the document we are giving a summary of our work.

Figure 1 QoS Admission Control Service

Figure 2. Supervisor Engine QoS Processing 2 MOTIVATION AND BRIEF SURVEY OF PROVIDING QOS:- Recent times the performance of the personal computers increases likewise the number of real-time Internet and multimedia applications. In case of these applications best effort traffic is not enough for satisfying the quality claim of the users. The best effort guarantee is an elementary provision of the Internet. The network elements try their best to deliver the packets to their destination without any bounds on delay, jitter, and latency, but they cannot give any guarantee for the delivery. These “guarantees” are not sufficient for i.e. a videoconference, because delay over a limit, or jitter can cut down or bust the interactivity and usability. The goal of the Internet Service Providers (ISPs) is to satisfy the quality demand of the customers and ensure the same sort of QoS and reliability over IP networks as in the circuit switched networks. By applying packet classification they can deliver different kind of services on the same link without the suffering of the im- portant flows. The IP QoS is one of the most important research areas in our days. The development is driven by the increasing demands of the customers for service qual- ity and reliability. Most of the technological challenges have been solved, now it is a matter of standardizing the technologies, and making the system scaleable. To solve the problem of scalability is one of the most important challenges because of the rapid growth of the modern Internet. Main negative of the Public Switched Telephone Net- work (PSTN) that it can only deliver one kind of data. The IP technology is more flexible than any circuit’s switched provision as it can carry different kind of traffic on the same link. The Internet is a complicated, heterogeneous system, which contains lot of different Autonomous Sys- tem (AS) with different routing algorithms and different QoS technologies, applications. The number of the QoS architectures is high, but the interoperability and the standardizing are still not solved. Since the actual Internet architecture does not provide mechanisms for resource management and isolation of ————————————————  F.A. is Working as a Manager,IDC-Internet Data Center,Reliance Com- munications,New Mumbai.(Maharashtra) - (INDIA)  S.A. Author Principal of Yeshwant Mahavidyalaya Nanded F JOURNAL OF COMPUTING, VOLUME 2, ISSUE 3, MARCH 2010, ISSN 2151-9617 HTTPS://SITES.GOOGLE.COM/SITE/JOURNALOFCOMPUTING/ 74

the flows, all of the running services suffer in the conges- tion periods. Hence, in order to provide quality of service, an important step is to implement admission control me- chanisms. Other shortcoming of the current IP networks is that IP does not have the technical support for offering premium services. Each transmitted packet in the network is treated in the same way, the treating functions do not depend on the carrie

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