Quality of Service with Bandwidth

TL;DR

This paper surveys QoS provisioning over IP networks, discusses existing approaches, and focuses on inter-domain reservation methods, highlighting the differences between distributed and centralized solutions.

Contribution

It provides an overview of QoS solutions, compares distributed and centralized reservation approaches, and emphasizes inter-domain reservation challenges and methods.

Findings

Distributed reservation handles nodes independently.

Centralized reservation uses a network manager for multiple domains.

Inter-domain reservation is complex and less standardized.

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.