implementing cisco quality of service training

... 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 ... 2006 Cisco Systems, Inc All rights reserved QoS v2.2—18Case Study Results: JC Whitney Service Classes Trang 12© 2006 Cisco Systems, Inc All rights reserved QoS v2.2—19Case Study Results: QoS Service ... 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

... Trang 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 ... ASIST, BPX, Catalyst, Cisco, the Cisco Certified Internetwork Expert Logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Collision Free, ... Service provides an indication of the abstract parameters of the quality of service desired These parameters are to be used to guide the selection of the actual service parameters when transmitting

Ngày tải lên: 11/10/2016, 18:00

... 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 ... network on the application-perceived Quality of Service is of great significan- wire-ce when it comes to customer satisfaction refore, application-perceived Quality of Service in wireless networks must ... 3On Application-Perceived Quality of Service in Wireless Networks Stefan Chevul Trang 5Department of Telecommunication SystemsSchool of Engineering Blekinge Institute of Technology SWEDEN Trang

Ngày tải lên: 18/10/2013, 12:15

... assuring network service quality but also consider the quality as perceived by the end user Perceived QoS (or Quality of Experience – QoE) is often considered as the “ultimate measure” of system performance ... number of OFDM symbols (/OFDMA slots) Therefore achieved transfer rates of a wireless link can vary significantly over short period of time This adds a “second dimension” to the problem of estimating ... where capacity of a link in terms of a maximum throughput / number of calls is considered constant As a consequence, in such an ACM-enabled system, OFDM symbols (or slots for OFDMA) should be

Ngày tải lên: 21/06/2014, 05:20

... Evaluation criteria for multimedia services, issue 1 [40] Olli Alanen; “Quality of Service for Triple Play Services in Heterogeneous Networks”; p 38-39; University of Jyväskylä 2007; Finland [41] ... evaluation of speech quality (PESQ): An objective method for end-to-end speech quality assessment of narrow-band telephone networks and speech codecs, Telecommunications Standarization Sector of ITU ... “Perceptual evaluation 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

Ngày tải lên: 21/06/2014, 05:20

... support joint operation with it. Quality of Service and Resource Allocation in WiMAX 274 One of the drivers of WiMAX’s development is its suitability (because of centralized scheduling using ... telemedicine/e-health services”. Proceedings of the IEEE Wireless Communications and Networking Conference WCNC, Budapest, Hungary, 2009. N. Y. Philip, (2008). "Medical Quality of Service for Optomised ... Assessment of the results of the adaptive protection scheme is presented in terms of packet drops, data corruption and repair, end-to-end delay introduced, and the dependency of objective video quality

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 ... weather conditions, can all affect the Quality of Service (QoS) as seen by the end user The topology is constantly changing and vehicles could move out of sight from one another causing an outage ... allowed for the integration of the various components of the Video VANET OPNET model a VANET model From our survey, Table 2.1 shows a summary of the findings The result of this analysis presents

Ngày tải lên: 21/06/2014, 05:20

... 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 ... list of author information is available at the end of the article Abstract The prevalence of multimedia applications has drastically increased the amount of multimedia data With the drop of the ... handoff among differ-ent wireless networks and provide an uninterrupted playback of the video with an acceptable QoS • Routing Because of the movement of the mobile devices, the topology of the

Ngày tải lên: 21/06/2014, 06:20

... effect of the lengthening of the on-periods of the NRT services is analyzed under Go-Back-N (GBN) automatic re-transmission request (ARQ) scheme The QoS attributes are formulated in terms of the ... limited number of retransmissions for web-browsing and data services (x) Web-browsing and data services are equipped with fi-nite buffer of buffer sizes B3andB4, respectively, both in unit of packets ... amount of inter-ference and retransmissions, the lengthened activity factors of each mobile can be different even for the same class of service Let us denote the average on and off periods of web-browsing

Ngày tải lên: 22/06/2014, 22:20

... H The probability density of ξ i is f ξ(ξ) =4ξe −2ξ for ξ > 0. Proof The joint distribution of X and h2 is derived in Appendix A The eigenvaluesξ i of HHH andλ i of HHH/h2 are proportional ... multiplexing. 1 INTRODUCTION One of the salient features of UMTS is the provisioning of moderately high data rates for packet switched data ser-vices In order to maximize the number of satisfied users, an ... diversity order and outage probability for fulfilling the quality of service (QoS) requirements Not considered in this paper is the impact of the modulation scheme on the achieved diversity It is

Ngày tải lên: 23/06/2014, 01:20

... nonstationary Thus, we consider the network supporting quality-of-service renegotiations during the data transmission and study effective quality-of-service renegotiating schemes for streaming video ... Revised 25 September 2003 Effective quality-of-service renegotiating schemes for streaming video is presented The conventional network supporting quality of service generally allows a negotiation ... “Specification of guaranteed quality of service,” IETF RFC 2212, September 1997 [17] S Verma, R K Pankaj, and A Leon-Garcia, “Call admission and resource reservation for guaranteed QoS services in

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 ... trúc Guaranteed Services: Dữ liệu đi qua mạng được dành riêng 1 băng thông chắc chắn cho dữ liệu Thực hiện thông qua cơ chế RSVP và CBWFQ của QoS.  Cấu trúc Differentiated Services: Dữ liệu ... Một chính sách là tổ hợp của nhiều yếu tố bao gồm :  Các lớp lưu lượng tuân theo profile và không tuân theo profile được CAR xử lý khác nhau.  Tốc độ cam kết trung bình xác định tốc độ truyền

Ngày tải lên: 17/10/2014, 21:08

... delay Theyoffer the means to provide priority service through service differentiation, a derived or secondarybenefit of which is the ability to offer customers different classes of service with ... these levels of service Without differentiated services, most ISPs offer a standard $20 a month service to residential subscribers Use of a standard fee significantly reduces profit marginsafforded ... guide gives an overview of the QoS features and protocols specific to VoIP For those usersnew to Cisco products and Cisco-supported protocols, refer to the Quality of Service Solutions Configuration

Ngày tải lên: 16/11/2014, 19:57

... between service quality and resource usage.The concept of Quality•of•Service can be generalised to higher levels of abstraction We may, forexample, consider the user•perceived quality of a video ... NETWORKS UNDER QUALITY•OF•SERVICE CONSTRAINTSROBERT JOHAN HUBERT HOES NATIONAL UNIVERSITY OF SINGAPORE 2010 Trang 2CONFIGURING HETEROGENEOUS WIRELESS SENSOR NETWORKS UNDER QUALITY•OF•SERVICE CONSTRAINTSROBERT ... about various aspects of the performance of the network executing the task Examples of such performance characteristics, called Quality•of•Service (QoS) metrics, or simply quality metrics, are

Ngày tải lên: 11/09/2015, 09:00

... eg. ToS field of IP o Problem l how to avoid everybody sendinghigh priority packets? Queue Management 1 Quality of Service in IP Networks CH-1015 Ecublens http://icawww.epfl.ch Prof. Jean-Yves ... Fast Retransmit o Probability p of choosing a given flow is 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 ... duration o Burst duration - S sec o Size of the bucket - B bytes o Maximal departure rate - p bytes/s o Token arrival rate - r bytes /s l burst of B + r S bytes l burst of pS l B + rS = pS → S = B/(r -...

Ngày tải lên: 06/04/2013, 11:05

... that 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, ... 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 and latency needed for ... classes of service. You can base policies on IP addresses, port numbers, protocols, or the size of packets. You can use one of these descriptors to create a simple policy, or you can use all of...

Ngày tải lên: 30/09/2013, 05:20

... Service Signaling Quality of Service Signaling © 2000, Cisco Systems, Inc. www .cisco. com econ_0386_09_001.ppt Copyright © 2000, Cisco Systems, Inc. 40 © 2000, Cisco Systems, Inc. www .cisco. com econ_0386_09_010.ppt Keep ... the service policy named gary. http://www .cisco. com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120xe/120xe5/mqc/mcli.htm Copyright © 2000, Cisco Systems, Inc. 44 Quality of Service Signaling Quality ... DiffServ. Note the similarity to the Cisco IOS software capabilities we are discussing. Copyright © 2000, Cisco Systems, Inc. 38 © 2000, Cisco Systems, Inc. www .cisco. com econ_0386_09_010.ppt Keep...

Ngày tải lên: 11/12/2013, 14:15

... significance of Quality of Service (QoS) • Describe new Quality of Service (QoS) features in Cisco IOS 12.1 • Explain which problems QoS solves The purpose of this module is to quickly survey the new Quality ... Inc. 1 © 2000, Cisco Systems, Inc. Introduction to Quality of Service Introduction to Quality of Service Copyright © 2000, Cisco Systems, Inc. 20 © 2000, Cisco Systems, Inc. www .cisco. com Econ_0385_02_010.ppt Keep ... framework Copyright © 2000, Cisco Systems, Inc. 18 © 2000, Cisco Systems, Inc. www .cisco. com Econ_0385_02_010.ppt Keep All Graphics Inside This Box IP-ATM Class of Service IP-ATM Class of Service Capabilities: •...

Ngày tải lên: 11/12/2013, 14:15

... in achieving QoS. © 2000, Cisco Systems, Inc. 1 © 2000, Cisco Systems, Inc. Campus Quality of Service © 2000, Cisco Systems, Inc. 17 © 2000, Cisco Systems, Inc. www .cisco. com econ_387_05_010.ppt Campus ... 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 ... following URL: http://wwwin .cisco. com/Mkt /Training/ field _training/ felc/us/pre_vt/campus/ht ml/data_0505.htm © 2000, Cisco Systems, Inc. 7 © 2000, Cisco Systems, Inc. www. cisco. com econ _387_05_010....

Ngày tải lên: 11/12/2013, 14:15

... Congestion avoidance, additive increase 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 ... SERVICES 24-7 INTEGRATED SERVICES Two models have been designed to provide quality of Two models have been designed to provide quality of service in the Internet: Integrated Services and service ... Four cases of congestion 24.2 24-1 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