implementing cisco quality of service qos 2 3

... 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 ... 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 ... 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

Ngày tải lên: 04/07/2014, 01:20

... Publishing Services Ltd, Shannon, Ireland Trang 5For AdrianaTrang 63.1.2 Determine Decision-Making Responsibilities 233.1.3 Specify Analysis Objectives 23Trang 73.2.1 Data Acquisition 283.2.2 All ... 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

Ngày tải lên: 23/05/2018, 13:50

... ………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 ... ………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 ... 42 2.3.2 Các hoạt động cơ bản của MPLS ……… 44 2.3.3 Các thành phần của MPLS ……….45 2.3.4 Giao thức phân bố nhãn (Label Distribution Protocol) ……….48 2.3.5 Sự phân bố và gán nhãn ………52 2.3.6

Ngày tải lên: 16/04/2021, 04:27

... loss rate of 0.1% is referred to as the absolute threshold of that class This kind of QoS guarantee calls for different QoS differentiation mechanisms than those intended for the relative QoS model ... under-utilization of wavelengths Preemption, which will be described later, overcomes this drawback 4.2 Wavelength Grouping 93 4.1.2 Calculation of the early dropping probability A key parameter of the ... 4 ABSOLUTE QOS DIFFERENTIATION The absolute Quality of Service (QoS) model in Optical Burst Switching (OBS) aims to give worst-case quantitative

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 ... Guaranteed Quality of Service," S Shenker, C Partridge, R Guerin, RFC 2212 3 "The Use of RSVP with IETF Integrated Services," J Wroclawski, RFC 2210 4 IETF Differentiated Services Working ... distributing QoS policy information across the network References 1 "Specification of the Controlled-Load Network Element Service," J Wroclawski, RFC 2211 2 "Specification of Guaranteed Quality

Ngày tải lên: 11/10/2016, 18:00

... Methodology 35 4.1 Active Measurements 36 4.2 Passive Measurements 36 4.3 Measurements of Application-Perceived Throughput 38 4.3.1 Layer of interest 38 4.3.2 Initial delay 39 4.3.3 ... 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 ... Architecture 13 2.3 GPRS attach procedure [1] 14 2.4 GPRS transmission plane [1] 15 2.5 Channel coding (384 kbps) 19 2.6 UTRAN architecture 19 2.7 Packet service in UMTS 20 2.8 User

Ngày tải lên: 18/10/2013, 12:15

... PBOA 32.4 –2.2 MUD-MAC (2-BR) 83.3 63.2 MUD-MAC (4-BR) 84.7 180.1 Korger et al. EURASIP Journal on Wireless Communications and Networking 2011, 2011:9 http://jwcn.eurasipjournals.com/content/2011/1/9 ... MUD-MAC(2-BR) MUD-MAC(4-BR) PBOA 802.11 5 4 3 2 1 0 0 10 Mbps offered Traffic 0.4 0.3 0 0 1 Figure 10 Variance of throughput per node over offered... Jain’s Fairness Index for offered traffic of ... Networking 2011, 2011:9 http://jwcn.eurasipjournals.com/content/2011/1/9 Page 2 of 13 time-division manner as argued by the authors of [19] to avoid two transceivers, however, makes the application of

Ngày tải lên: 21/06/2014, 03:20

... (Dynamic Service Addition) , and DSC (Dynamic Service Change). The implemented PHY is OFDM. Lot size(byte) Channel coding modulation 108 3/4 64-QAM 96 2/3 64-QAM 36 3/4 QPSK 24 1/2 QPSK ... WiMAX 100 0 500 1000 1500 2000 2500 3000 3500 300 800 1400 1900 2400 2900 3400 Throughput Traffic Load UGS Fig. 8. Throughput versus traffic The fairness of the scheduling algorithms under ... wireless-based access methods. 3.2 QoS and scheduling in WiMAX A high level of QoS and scheduling support is one of the interesting features of the WiMAX standard. These service-provider features

Ngày tải lên: 21/06/2014, 05:20

... Communications 3: 614–634. Gault, S., Hachem, W & Ciblat, P (2005) Performance analysis of an OFDMA transmission system in a multi-cell environment, IEEE Transactions on Communications 12(55): 2143–2159 ... analysis of the network in the limit of large number of users The aim of this approach is to obtain optimal values of the resuse factor that no longer depend on the particular configuration of the ... all-reuse scheme of Thanabalasingham et al (2006) in the case of 21 sectors (25 users per sector) vs the totalrate requirement per sector max{Nk ,P k,n}1≤k≤K,n∈Nk∑c∑k∈c R k subject to the OFDMA orthogonality

Ngày tải lên: 21/06/2014, 05:20

... corrigendum 1, IEEE Std 802.16e-2005 and IEEE Std 802.16-2004/Cor 1-2005 (Amendment and Corrigendum to IEEE Std 802.16-2004) pp 1 –822 IEEE802.21 (2010). URL: http://www.ieee802.org/21/ Iyengar, J., Amer, ... std 802.11, 1999 edition; ieee std802.11a.-1999; ieee std 802.11b.-1999; ieee std 802.11b.-1999/cor 1-2001; and ieee std 802.11d.-2001), ISO/IEC 8802-11 IEEE Std 802.11 Second edition 2005-08-01 ... Suh, Y.-J & Won, J.-J (2009) Implementation and performance study of ieee 802.21 in integrated ieee 802.11/802.16e networks, Computer Communications 32(1): 134 – 143 Luo, J., Mukerjee, R.,

Ngày tải lên: 21/06/2014, 05:20

... 64 Constant: 0.02 Constant: 1280 rtPS Video streaming (25 pictures/s) 3.5 103 Constant: 2.287510−4 Geometric:mean=12.510−4 nrtPS FTP 3.5 103 Constant: 2.287510−4 Geometric: mean=12.510−4 Table ... Apostolos P (2007) Downlink Spectral Efficiency of Mobile WiMAX, Proceedings of VTC’2007, pp 2786-2790 Wongthavarawat, K and Ganz A (2003) Packet Scheduling for QoS Support in IEEE 802.16 Broadband ... allocation in OFDMA systems, Proceedings of IEEE Signal Processing Systems, 2004 SIPS 2004, pp 1-6, october 2004 Trang 10Part 2 Quality of Service Models and Evaluation Trang 12A Unified Performance

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 ... publications [27], [28], [29] as a method for evaluating QoE over a wireless link using VoIP applications Variations of the e-model implementation [30] as well as new approaches [31], [32] are investigated

Ngày tải lên: 21/06/2014, 05:20

... [39] INFSCO-ICT-216203 DA VINCI D5.4.1 v1.0: Evaluation criteria for multimedia services, issue 1 [40] Olli Alanen; “Quality of Service for Triple Play Services in Heterogeneous Networks”; p 38-39; ... Management, 2008 [32] A Raja, R Muhammad Atif Azad, C Flanagan, C Ryan, Real-Tiem, “Non-intrusive Evaluation of VoIP”, Springer 2007 [33] F Bernardo, N Vucevic, A Umbert, M Lopez-Benitez, “Quality of ... Communication Theory, Reliability, and Quality of Service [42] EuQoS project http://www.euqos.eu/ [43] Alain Mourad, Ismael Gutierrez; “System level evaluation, Issue 2”; Jan 2010, Samsung Electronics UK

Ngày tải lên: 21/06/2014, 05:20

... 1000000 2000000 3000000 4000000 5000000 6000000 7000000 8000000 12345 Throughput (bps) Time (s) UGS (8 Mbs) rtPS 1 (3 Mbs) rtPS2 (3 Mbs) rtPS3 (3 Mbs) BE1 (1,5 Mbs) BE2 (1,5 Mbs) BE 3 (0.2 Mbs) Quality ... http://ant.comm.ccu.edu.tw/course/94_WLAN/1_Papers/LTR,%20Admission%2 0control%20with%20physical%20rate%20measurement%20for%20IEEE%20802.11e %20controlled%20channel%20access.pdf K. Noimanee, S. Noimanee, P. Khunja, and P. Keawfoonrungsie, (2010) “Medical Consult- ... Applications 267 Fig. 2.2. Throughput results for Test 1. Fig. 2.3. Throughput results for Test 2. Fig. 2.4. Throughput indications for Test 3 0 1000000 2000000 3000000 4000000

Ngày tải lên: 21/06/2014, 05:20

... Pareto FBM TCP Parsimony 2 3 1 Analytical 2 1 1 Flexibility 1 1 1 Implemental 3 2 1 Accuracy 2 2 3 Table 2.3. Traffic model methodology comparisons Table 2.3 shows other models and ... (dBm/Hz) -30 Link bandwidth (MHz) 20 Base Frequency (GHz) 5.8 Physical layer Profile OFDM Table 2.2. Typical RSU parameters b. IEEE802.16 video model The video model is one of the main ... is 132 6” and the frame interleaver is used for combined interleaving and. .. WireShark software is set to access the “capture” folder in the control centre before 302 Quality of Service

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

... 2 Packet removal time packet 2 Transmission finishing time packet 4 Packet removal time packet 4 (b) 1 21 321 4321 54321 654321 765432 876543 876543 876543 876543 C 87654 DC D FE D FE F 1 2 3 ... 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

Ngày tải lên: 22/06/2014, 22:20

... 3 weight 3 l 1 /3 1/6 1 /2 ∑ = i i w w i Cx C : link capacity Queue Management 17 Priority Queue o Several queues of different priority l source may mark paquets with priority – eg. ToS field of ... 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, ... saves 2 s × 0.5 MB/s = 1 MB rate 1 MB/s 2 MB/s 3 MB/s time 1 s 2 s 3 s 4 s Flow A Flow B Queue Management 19 Characteristics o It modifies the optimal strategy of sources l FIFO: be greedy - send...

Ngày tải lên: 06/04/2013, 11:05

... november 20 20 08 Homework Homework Do exrcise 1 ( 12) Do exrcise 1 ( 12) May August October July March June july 3 20 08 February 1 20 08 THE END Warm up: Months of ... Decmber What’s the date today? It’s October 10 th 20 08 Matching (Ex 2 WB pages 23 )  a- 1 st 1- sixth  b- 2 nd 2- ninth  c- 3 rd 3- seventh  d- 4 th 4- first  e- 5 th 5- tenth ...  eighth 8 th  ninth 9 th  tenth 10 th  twentieth 20 th  twenty-first 21 st  twenty-second 22 nd  thirtieth 30 th  G f o d a o t e r n o o n ...

Ngày tải lên: 29/09/2013, 10:10

... of voice quality. Table 9-4. Results for Test A Bandwidth Saturation (Percent) Delay (ms) PSQM Delay /QoS (ms) PSQM /QoS 0 76 1. 43 76 1. 43 40 23 3 1.94 106 1.5 60 24 2 2. 1 104 1. 43 ... 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...

Ngày tải lên: 30/09/2013, 05:20