Quality of Service

... Queue Management 1 Quality of Service in IP Networks CH-1015 Ecublens http://icawww.epfl.ch Prof. Jean-Yves Le Boudec Prof. Andrzej Duda Prof. Patrick Thiran LCA-ISC-I&C, ... Alternative to Marking and Policing: allocate a set portion of bandwidth to each application flow; can lead to inefficient use of bandwidth if one of the flows does not use its allocation o PRINCIPLE ......

Ngày tải lên: 06/04/2013, 11:05

... bytes most of the time (see Figure 9-2 ). 138 Chapter 9. Quality of Service Quality of service (QoS) is an often-used and misused term that has a variety of meanings. ... has a variety of meanings. In this book, QoS refers to both class of service (CoS) and type of service (ToS). The basic goal of CoS and ToS is to achieve the bandwidth...

Ngày tải lên: 30/09/2013, 05:20

... on the application- perceived Quality of Service is of great significan - ce when it comes to customer satisfaction. The - refore, application-perceived Quality of Service in wireless networks ... application-perceived throughput reflects the Quality of Service from the viewpoints of application and user. The focus of the thesis is on the influence of the network o...

Ngày tải lên: 18/10/2013, 12:15

... Architecture Digivance ® Simulcast Networks Reduce Network Costs and Improve Quality of Service WHITE PAPER Improving Grade of Service (GOS) While Reducing RF Channels Wireless service providers are adopting new deployment ... or more of the total number of RF channels required on a multiple link transport system for a specified amount of user grade of service. The perce...

Ngày tải lên: 10/12/2013, 19:15

... into various types of service at the basic perimeter of the network and that those types of service should be implemented in the core of the network. Routers in the core of the network can then ... © 2000, Cisco Systems, Inc. 1 © 2000, Cisco Systems, Inc. Infrastructure Quality of Service Infrastructure Quality of Service Copyright © 2000, Cisco Systems, Inc. 10 ©...

Ngày tải lên: 11/12/2013, 14:15

... Box Objectives Objectives Upon completion of this module, you will be able to perform the following tasks: • Explain the significance of Quality of Service (QoS) • Describe new Quality of Service (QoS) features ... 2000, Cisco Systems, Inc. 1 © 2000, Cisco Systems, Inc. Introduction to Quality of Service Introduction to Quality of Service Copyright © 2000, Cisco...

Ngày tải lên: 11/12/2013, 14:15

... 802.1p field (referred to as class of service or CoS), which is part of the 802.1Q tag • At Layer 3 using the 3 bits of DSCP field in the type of service (ToS) byte of the IP header Classification ... Define Differential Service Code Point The objective of this module is to define the quality of service (QoS) tools which must be implemented to provide a voice-enable...

Ngày tải lên: 11/12/2013, 14:15

... 24.14 Four cases of congestion 24.23 24-5 QUALITY OF SERVICE 24-5 QUALITY OF SERVICE Quality of service (QoS) is an internetworking issue Quality of service (QoS) is an internetworking issue ... DATA TRAFFIC 24-1 DATA TRAFFIC The main focus of congestion control and quality of The main focus of congestion control and quality of service is service is...

Ngày tải lên: 06/03/2014, 12:20

... 105 5.9 References 106 6 Quality of service 107 6.1 Introduction 107 6.2 Routing in mobile ad hoc networks 110 6.3 Routing with quality of service constraints 112 6.4 Quality of service routing in ... most of the prominent intrusion detection schemes available in the literature. The topic of quality of service for ad hoc networks is covered in Chapter 6. Supporting...

Ngày tải lên: 25/03/2014, 12:07

... measurement of service quality can provide specific data that can be used in quality management; hence, service organizations would be able to monitor and maintain quality service. Assessing service quality ... Value perspective the measurement of service quality in the service sector should take into account customer expectations of service as well as percepti...

Ngày tải lên: 23/12/2013, 02:16