implementing cisco quality of service qos v2 2 student guide

... Trang 1© 2006 Cisco Systems, Inc All rights reserved QoS v2.2—1Lab Guide Implementing Cisco Quality of Service (QOS) v2.1 Trang 2© 2006 Cisco Systems, Inc All rights reserved QoS v2.2—2Visual ... QoS v2.2—21Case Study Results: JC Whitney Regional Sales Office Network Trang 22© 2006 Cisco Systems, Inc All rights reserved QoS v2.2—29Visual Objective for Case Study 6-1: WRED Traffic Profiles ... partner. Trang 23© 2006 Cisco Systems, Inc All rights reserved QoS v2.2—30WRED Profiles Case Study Results Trang 24© 2006 Cisco Systems, Inc All rights reserved QoS v2.2—31WRED Profiles Case Study

Ngày tải lên: 04/07/2014, 01:20

... analogous scores of compet-ing services Figure 1.1 Simplified model of factors that shape perception of quality of service Trang 21† The second notion of quality of a particular service is what ... particular service is provided; and thecommon misconception that some measures of intrinsic quality of service areadequate surrogates for measures of perceived quality of service Trang 252.1 Function of ... measurement of quality of a telecommunications service mustbegin with a consideration of the concerns of the users of that service todevelop a set of evaluative concepts that will guide the definition ofmeasures

Ngày tải lên: 23/05/2018, 13:50

... ………13 2.1.3 Mô hình dịch vụ của Integrated Services ……….23 2.2 Differentiated Services(DiffServ) ………26 2.2.1 Giới thiệu về Differentiated Services 26 2.2.2 Cấu trúc của Differentiated Services ... ………27 2.2.3 Mô hình dịch vụ của Differentiated Services ……….31 2.2.4 Các loại Per-hop Behavior 32 2.2.5 Quản lý bộ đệm và tài nguyên ……… 38 2.3 Multi-Protocol Label Switch(MPLS) ………42 2.3.1 ... limitations of each service Chapter 4 shows some simulation results of the three frameworks based on some main parameters of the Quality of Service such as a graph of bandwidth , a graph of delay

Ngày tải lên: 16/04/2021, 04:27

... Globecom, pp 2009-2013) [2004] IEEE. 2 In the rest of this chapter, the term “class” refers to per-hop QoS class unless otherwise specified. Trang 23For the mapping of classes over an e2e path, it ... An obvious way to realize e2e absolute QoS is to start with e2e QoSclasses In this approach [1, 2], network traffic is divided into e2eclasses, each of which has an e2e loss budget The loss budget ... theamount of traffic that the entire network can support Also, by Trang 24116 5 EDGE-TO-EDGE QOS MECHANISMScombining the small number of predefined per-hop QoS classes, amuch larger number of e2e service

Ngày tải lên: 28/02/2023, 16:50

... 2IP Quality of Service IP Quality of Service Srinivas Vegesna Copyright© 2001 Cisco Press Cisco Press logo is a trademark of Cisco Systems, Inc Printed in the United States of America 1 2 ... 2, the enterprise customer traffic from network 215.215.215.0/24 gets a QoS group 3 service level, and the rest of the traffic a service level of QoS group 0, as shown in Figure 3-1 Trang 32QoS ... purchases two levels of service from the ISP It likes its traffic from network 215.215.215.0/24 to have a service level of IP Precedence 5 and the rest of the traffic a service level of IP Precedence

Ngày tải lên: 11/10/2016, 18:00

... switched UMTS 21 2.9 IEEE 802.11 protcol architecture 22 2.10 WLAN network using Infrastructure Base Station Subsystem (BSS) 23 3.1 Concept of application-perceived speed 27 3.2 Anticipated ... size of 128 bytes 52 5.2 ISP A: GPRS Uplink with packet size of 128 bytes 54 5.3 ISP B: GPRS Downlink with packet size of 128 bytes 59 5.4 ISP B: GPRS Uplink with packet size of 128 bytes ... throughput reflects the Quality of Service from the viewpoints of the applica- tion and user The focus of the thesis is on the influence of the network on the perceived Quality of Service and thus the

Ngày tải lên: 18/10/2013, 12:15

... perform scheduling services, so that the QoS requirements of the connections can be satisfied 3.1 What is QoS? QoS refers to the ability of a network to provide improved service to selected ... Relay, ATM, Ethernet and 802.1 networks, SONET, and IP-routed networks) and wireless-based technologies (802.11, 802.15, 802.16, 802.20, 3G, IMS, etc) In particular, QoS features provide improved ... Regardless of the simulation scenario, the general parameters of the 802.16 network are the same (see Table 2) There is one BS that controls the traffic of the 802.16 network The physical layer is OFDM

Ngày tải lên: 21/06/2014, 05:20

... Systems, IEEE, May 2009. Trang 2J G Andrews; A Ghosh & R Muhamed (2007) Fundamentals of WiMAX: UnderstandingBroadband Wireless Networking, Prentice Hall, ISBN 0-13-222552-2. B Kwak; N Song & ... providers With regard to Quality of Service (QoS) control, the WiMAX system provides service differentiation based on the combination of a set of communication service classes supported by both ... guarantee QoS support for applications crossing wired links In the latter, several IEEE 802.16 QoS services can be defined to provide service differentiation in the wireless interface (IEEE 802.16e, 2005)

Ngày tải lên: 21/06/2014, 05:20

... Perceived QoS (or Quality of Experience – QoE) is often considered as the “ultimate measure” of system performance According to ITU-T one can describe QoS as the ‘degree of objective service performance’ ... objective approach [23] Objective approach measurements usually use PESQ (Perceptual Evaluation of Speech Quality) or PSQA (Perceptual Speech Quality Assessment) [24], [25], [26] Both methods are ... – but only a fraction of them considers WiMAX networks Some articles focus on the subjective measurement approach as a method for evaluating quality of experience [21] [22] and some try to correlate

Ngày tải lên: 21/06/2014, 05:20

... Methods for Real-Time Services in IEEE 802.16e 2009 Second International Conference on Communication Theory, Reliability, and Quality of Service [42] EuQoS project http://www.euqos.eu/ [43] Alain ... categories of patients, data flows, medical services For example in (Zvikhachevskaya, 2010; Skinner et al., 2006; Bobadilla et al., 2007), the 2 priority-level approach is introduced for on-line and off-line ... of speech quality (PESQ) : An objective method for end-to-end speech quality assessment of band telephone networks and speech codecs”, University of Rennes, September narrow-2009 [26] A Paulo

Ngày tải lên: 21/06/2014, 05:20

... video and data services at high moving speed while maintaining high data rates Mobile WiMAX is based of OFDMA physical layer of the 802.16e-2005 standard, which is a revision of the fixed WiMAX ... for streaming video station-2.2 Public safety network models and assumptions 2.2.1 VANET Video model Fig.2.2 shows a diagram summarizing the various components of our model The video VANET ... formed in June of 2001 to promote conformity and interoperability of the standard (Brit, 2010) The WiMAX technology (Ghosh, 2007) provides ease deployment as it eliminates the use of cables and

Ngày tải lên: 21/06/2014, 05:20

... traditional 802.11 cannot provide for the QoS, 802.11e was proposed to improve the functionality [2] In the 802.11 family, 802.11e is the wireless standard that defines a set of Quality of Service (QoS) ... applications Provision of Quality of Service (QoS) is challenging in mobile ad hoc networks because of the dynamic characteristics of mobile networks and the limited resources of the mobile devices ... research Keywords: Quality of Service (QoS), mobile computing, multimedia, 802.11, 802.11e, survey 1 Introduction There is a rapidly growing demand for real-time multimedia services, such as video

Ngày tải lên: 21/06/2014, 06:20

... i,k,c g − p2 i,k,c f2  dA A +S2 i,2l n i,2 M p i,2l,c 1 + (M −1)p i,2l,c  × g −M p i,2l,c 2  dA A  , (6) where f = 4 e(σ ln 10/10)2  1− Q 40 log  √ 2σ2 −2σ2ln 10 10  ... 1 10 2 10 3 10 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Number of users in Group one Simulation Theory Figure 4: Packet loss rate/outage probability of video services (Group 2) the ... Number of services in each mobile user.Classes in each mobile 1 voice 1 video 1 voice + 1 video 1 web + 1 data 10 1 10 2 10 3 10 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Number of users

Ngày tải lên: 22/06/2014, 22:20

... HHH= h2    I2 XJ2 − ZJ2 YI2 − XJ2 I2 − YI2 − ZJ2 ZJ2 − YI2 I2 XJ2 YI2 ZJ2 − XJ2 I2   with h2= 8 k =1 h k 2 , X =2 Re  h1h ∗4 − h2h ∗3 +h5h ∗8 − h6h ∗7 Y =2 Re  h1h ∗7 − h3h ∗5 +h2h ∗8 ... metrics Λ2a  s1,s4 = z1− h2 s1+Xs4 2 + z4− h2 s4+Xs1 2 −2X Re! z1− h2 s1+Xs4  z ∗4 − h2 s ∗4 +Xs ∗1 " , Λ2b  s2,s3 = z2− h2 s2− Xs3 2 + z3− h2 s3− Xs2 2 + 2X Re! z2− h2 s2− Xs3 ... HH1r1+ HH2r2=HH1H1+ HH2H2  s + HH1v1+ HH2v2 =HH 1H1+ HH 2H2 Note that the new matrix [HH1H1+HH2H2] preserves the form (16): HH 1H1+ HH 2H2=h2+h2      withX =[X1h2+X2h2]/[h2+h2] Thus,

Ngày tải lên: 23/06/2014, 01:20

... 11928, 12780, 13632, 14484, 15336, 16188, 17040, 17892, 18744, 19596, 20448, 21300, 22152, 23004, 23856, 24708, 25560, 26412, 27264, 28116, 28968, 29820, 30672, 31524, 32376, 33228, 34080, 34932, ... 2280, 2880, 3000, 3840, 3960, 4680, 5400, 5760, 7200, 7320, 7920, 8280, 9120, 10080, 10560, 11520, 15120, 15840, 17880, 19440, 20160, 20760, 21240, 21720, 21840, 22320, 22680, 23760, 24840, 24960, ... 5124, 5856, 6588, 7320, 8052, 8784, 9516, 10248, 10980, 11712, 12444, 13176, 13908, 14640, 15372, 16104, 16836, 17568, 18300, 19032, 19764, 20496, 21228, 21960, 22692, 23424, 24156, 24888, 25620,

Ngày tải lên: 23/06/2014, 01:20

... Trang 1Quality of ServiceBùi Thế Khang Nguyễn Thị Hương Đỗ Văn Mạnh Hà Nội, Ngày 08/07/2011 Trang 2Khái niệm QoS QoS trong mạng IP là các kỹ thuật xử lý lưu ... lượng trong QoS2 Phân loại lưu lượng ở mức lớp liên kết dữ liệu Trang 8Các giải pháp QoS Cấu trúc Best-Effort: Dữ liệu đi vào mạng đều tuân theo quy tắc FIFO Không có sự đối xử nào của QoS đối ... cách đối xử khác nhau giữa các luồng dữ liệu tuân theo và không tuân theo profile. Trang 12Các giải pháp điều khiển QoS2 Phân phối lưu lượng ra (Scheduling Algorithms)  Cơ sở của việc phân phối

Ngày tải lên: 17/10/2014, 21:08

... priority packets? 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, ... assurance for QOS o Work in Progress includes Differentiated Services, and Integrated Services (RSVP) o Simple model for sharing and congestion studies: Queue Management 24 RED o Estimation of the ... proportional to the rate of the flow l more packets of that flow, higher probability of choosing one of its packets Queue Management 16 FIFO o Last packets are dropped o Current state of Internet routers l...

Ngày tải lên: 06/04/2013, 11:05

... ip address 1 92. 168. 121 .18 25 5 .25 5 .25 5 .24 8 no ip mroute-cache ip rtp header-compression encapsulation ppp ! Frame Relay ! interface Serial0/0 ip 1 92. 168. 120 .10 25 5 .25 5 .25 5.0 encapsulation ... information instead of when a packet arrives. The 140 Chapter 9. Quality of Service Quality of service (QoS) is an often-used and misused term that has a variety of meanings. In this book, QoS refers ... not requiring special network services). Values are 16, 32, 64, 128 , 25 6, 5 12, 1 024 , 20 48, and 4096. The default is 25 6. o reservable-queues—(Optional) Number of reservable queues used for...

Ngày tải lên: 30/09/2013, 05:20

... the service policy named gary. http://www .cisco. com/univercd/cc/td/doc/product/software/ios 120 / 120 newft/ 120 limit/ 120 xe/ 120 xe5/mqc/mcli.htm Copyright © 20 00, Cisco Systems, Inc. 44 Quality of Service Signaling Quality ... host. http://www .cisco. com/univercd/cc/td/doc/product/software/ios 121 / 121 cgcr /qos_ c/qcprt5/qcdrsvp .htm Copyright © 20 00, Cisco Systems, Inc. 23 © 20 00, Cisco Systems, Inc. www .cisco. com econ_0386_09_010.ppt Keep ... Service Signaling Quality of Service Signaling © 20 00, Cisco Systems, Inc. www .cisco. com econ_0386_09_001.ppt Copyright © 20 00, Cisco Systems, Inc. 40 © 20 00, Cisco Systems, Inc. www .cisco. com econ_0386_09_010.ppt Keep...

Ngày tải lên: 11/12/2013, 14:15

... in a Cisco IOS software T release: 12. 0(5)T. http://www .cisco. com/univercd/cc/td/doc/product/software/ios 120 / 120 newft/ 120 t/ 120 t5/cbwfq.htm Copyright © 20 00, Cisco Systems, Inc. 22 © 20 00, Cisco ... module. http://www .cisco. com/univercd/cc/td/doc/product/software/ios 120 / 120 newft/ 120 t/ 120 t5/saaoper.htm#xtocid20 325 1 Copyright © 20 00, Cisco Systems, Inc. 23 © 20 00, Cisco Systems, Inc. www .cisco. com ... Systems, Inc. 1 © 20 00, Cisco Systems, Inc. Introduction to Quality of Service Introduction to Quality of Service Copyright © 20 00, Cisco Systems, Inc. 20 © 20 00, Cisco Systems, Inc. www .cisco. com Econ_0385_ 02_ 010.ppt Keep...

Ngày tải lên: 11/12/2013, 14:15