You submitted this homework on Sat 22 Mar :51 AM PDT. You got a score of 5.00 out of 5.00.
|
|
- Stephen Webster
- 6 years ago
- Views:
Transcription
1 Feedback Homework 9 Help You submitted this homework on Sat 22 Mar :51 AM PDT. You got a score of 5.00 out of Question 1 Lecture 9-1 discussed the quality of service requirements for different applications. This question explores your understanding of the lecture material. Select ALL statements that are correct. When interpreting the lecture slides, note that a "high stringency" for property means that the property matters a great deal to the application. Thus a high stringency for delay means that the delay should be low (not high!) since this is what matters for delay. However, a high stringency for bandwidth means that the bandwidth should be high because this is what matters for bandwidth. We avoid using the term "stringent" below because of the potential for confusion. Telephony (as in voice calls) has demanding quality of service requirements for bandwidth. Voice-over-IP requires lower jitter than web access. Video-conferencing has more demanding quality of service requirements than file sharing. Telephony (as in Skype audio calls) needs the same kind of quality of service as file sharing (as in BitTorrent downloads) 0.25 No, voice calls need little bandwidth (say in the order of about 10 KB/s) from the network Yes, low jitter (or variation in delay) is important for VoIP to prevent gaps, whereas web access is not particularly sensitive to jitter Yes, both video-conferencing and file sharing require high bandwidth, but video-conferencing also requires low packet delays and low jitter No, file sharing wants high bandwidth and is insensitive to delay. Telephone wants low delay/jitter and is needs little bandwidth. 1/5
2 Total / Question 2 Consider a router that uses fair queueing, with two queues, for flows F1 and respectively. F1 uses packets of length 1200 bits, and uses packets of length 400 bits. To what flows do the first five packets sent belong? To answer the question, compute the finish times. Assume that the queues are always backlogged and that a router can transmit a packet from either one of the two flows at any point in time.,,,,,,, F1, Yes, this option sends the packets with the lowest finish times first., F1,, F1, F1 F1,,,, Total / Finish times for F1 are 1200, 2400, Finish times for are 400, 800, 1200, Packets are transmitted based on the finish time Question 3 2/5
3 Two flows F1 and are shaped by token buckets (R1, B1) = (50 KB/sec, 2000 bytes) and (R2, B2) = (100 KB/sec, 1000 bytes). Which statements are TRUE regarding the flows after they are shaped by the token buckets? Select ALL answers that are correct. For simplicity, use 1 KB = 1000 bytes. F1 can transmit a maximum of 102KB over *two* seconds F1 can transmit a maximum of 50KB over a second can transmit a maximum of 100KB over a second can transmit a maximum of 101KB over a second 0.25 The maximum data transmitted in t secs is bounded by R*t + B = 50000* Did you take into account the fact that traffic can exceed the rate R by B bytes? 0.25 Did you take into account the fact that traffic can exceed the rate R by B bytes? 0.25 The maximum data transmitted in t secs is bounded by R*t + B = * Total / Question 4 This question covers the differentiated services concept discussed in lecture 9-6. Which statements are TRUE concerning how differentiated services are implemented and used? Select ALL statements that are correct. Quality of service markings on a packet are modified at each router Best effort service traffic typically has the lowest priority 0.25 No, the markings are carried through the network and used to ensure that the packet receives the same service at each router in the network Quality of service markings are sent along with /5
4 each packet Each router maintains state regarding the quality of service level for each flow 0.25 No, routers need only consider the different services because each packet is marked with its service (regardless of its flow). Total / Review the differentiated services architecture; the correct statements are descriptive of it. Question 5 This question explores the strong quality of service guarantee provided by the scheme of lecture 9-7. Consider a (2MBps, 100KB) shaped traffic flow (i.e., rate is set to 2 MBps and burst limited to 100KB). Assume that it traverses two routers R1 and R2 with the following settings: Weight attached to the flow at R1 is 10 Sum of weights of all R1 flows is 100 Capacity of link coming out of R1 is 10 MBps Weight attached to the flow at R2 is 10 Sum of weights of all R2 flows is 200 Capacity of link coming out of R2 is 40 MBps End-to-end end delay for the flow is 100 ms when there is no queueing at R1 or R2 Which statements about the bandwidth and delay guarantees provided for the flow are TRUE? Select ALL statements that are correct. Note that we have given both rates and bursts using bytes (B). For simplicity use K = 1,000 and M = 1,000,000 in your calculations. The flow is bottlenecked at R1 when there is cross-traffic in the network Correct. R1 guarantees only 1 MBps, while R2 guarantees 2 MBps and the token bucket allows 2 MBps. The flow is 0.25 Check what rate is guaranteed by R1. 4/5
5 bottlenecked at R2 The flow can achieve a bandwidth rate of 1MBps irrespective of the amount of cross traffic The worst case delay for the flow's packets is 200 ms 0.25 The flow is constrained at router R1 to a rate of 10/100*10MBps = 1MBps 0.25 This is tricky. Since the token bucket can let R = 2 MBps into the network but the network only guarantees 1 MBps at R1, then the queue at R1 can build endlessly and drive up the worst case delay until there is loss. (If the traffic is shaped so that R Total / Work out the rate that the flow is guaranteed at R1 and R2. This will let you find the lowest rate that is guaranteed across the network and reason about how this interacts with the flow after it has been shaped. 5/5
You submitted this homework on Sun 23 Feb :12 PM PST. You got a score of 5.00 out of 5.00.
Feedback Homework 5 Help You submitted this homework on Sun 23 Feb 2014 9:12 PM PST. You got a score of 5.00 out of 5.00. Question 1 Consider the network given. Distance vector routing is used, and the
More informationQuality of Service (QoS)
Quality of Service (QoS) The Internet was originally designed for best-effort service without guarantee of predictable performance. Best-effort service is often sufficient for a traffic that is not sensitive
More informationOverview Computer Networking What is QoS? Queuing discipline and scheduling. Traffic Enforcement. Integrated services
Overview 15-441 15-441 Computer Networking 15-641 Lecture 19 Queue Management and Quality of Service Peter Steenkiste Fall 2016 www.cs.cmu.edu/~prs/15-441-f16 What is QoS? Queuing discipline and scheduling
More informationof-service Support on the Internet
Quality-of of-service Support on the Internet Dept. of Computer Science, University of Rochester 2008-11-24 CSC 257/457 - Fall 2008 1 Quality of Service Support Some Internet applications (i.e. multimedia)
More informationLecture 24: Scheduling and QoS
Lecture 24: Scheduling and QoS CSE 123: Computer Networks Alex C. Snoeren HW 4 due Wednesday Lecture 24 Overview Scheduling (Weighted) Fair Queuing Quality of Service basics Integrated Services Differentiated
More informationTopic 4b: QoS Principles. Chapter 9 Multimedia Networking. Computer Networking: A Top Down Approach
Topic 4b: QoS Principles Chapter 9 Computer Networking: A Top Down Approach 7 th edition Jim Kurose, Keith Ross Pearson/Addison Wesley April 2016 9-1 Providing multiple classes of service thus far: making
More informationDiffServ Architecture: Impact of scheduling on QoS
DiffServ Architecture: Impact of scheduling on QoS Abstract: Scheduling is one of the most important components in providing a differentiated service at the routers. Due to the varying traffic characteristics
More informationGrandstream Networks, Inc. GWN7000 QoS - VoIP Traffic Management
Grandstream Networks, Inc. GWN7000 QoS - VoIP Traffic Management Table of Contents INTRODUCTION... 4 DSCP CLASSIFICATION... 5 QUALITY OF SERVICE ON GWN7000... 6 USING QOS TO PRIORITIZE VOIP TRAFFIC...
More informationETSF10 Internet Protocols Transport Layer Protocols
ETSF10 Internet Protocols Transport Layer Protocols 2012, Part 2, Lecture 2.2 Kaan Bür, Jens Andersson Transport Layer Protocols Special Topic: Quality of Service (QoS) [ed.4 ch.24.1+5-6] [ed.5 ch.30.1-2]
More informationENSC 427 Communication Networks Final Project Presentation Spring Comparison and analysis of FIFO, PQ, and WFQ Disciplines in OPNET
1 ENSC 427 Communication Networks Final Project Presentation Spring 2011 Comparison and analysis of FIFO, PQ, and WFQ Disciplines in OPNET 2 Shadi: Shadi: Presentation Structure Introduction Background
More informationA common issue that affects the QoS of packetized audio is jitter. Voice data requires a constant packet interarrival rate at receivers to convert
A common issue that affects the QoS of packetized audio is jitter. Voice data requires a constant packet interarrival rate at receivers to convert data into a proper analog signal for playback. The variations
More informationMulti-Level Priority Queues
The (MPQ) feature allows you to configure multiple priority queues for multiple traffic classes by specifying a different priority level for each of the traffic classes in a single service policy map.
More informationA Preferred Service Architecture for Payload Data Flows. Ray Gilstrap, Thom Stone, Ken Freeman
A Preferred Service Architecture for Payload Data Flows Ray Gilstrap, Thom Stone, Ken Freeman NASA Research and Engineering Network NASA Advanced Supercomputing Division NASA Ames Research Center Outline
More informationCSE 461 Quality of Service. David Wetherall
CSE 461 Quality of Service David Wetherall djw@cs.washington.edu QOS Focus: How to provide better than best effort Fair queueing Application Application needs Transport Traffic shaping Guarantees IntServ
More informationAdvanced Computer Networks
Advanced Computer Networks QoS in IP networks Prof. Andrzej Duda duda@imag.fr Contents QoS principles Traffic shaping leaky bucket token bucket Scheduling FIFO Fair queueing RED IntServ DiffServ http://duda.imag.fr
More informationReal-Time Protocol (RTP)
Real-Time Protocol (RTP) Provides standard packet format for real-time application Typically runs over UDP Specifies header fields below Payload Type: 7 bits, providing 128 possible different types of
More informationComputer Networks 1 (Mạng Máy Tính 1) Lectured by: Dr. Phạm Trần Vũ
Computer Networks 1 (Mạng Máy Tính 1) Lectured by: Dr. Phạm Trần Vũ 1 Lecture 5: Network Layer (cont ) Reference: Chapter 5 - Computer Networks, Andrew S. Tanenbaum, 4th Edition, Prentice Hall, 2003. 2
More informationConfiguring RSVP Support for Frame Relay
Configuring RSVP Support for Frame Relay This chapter describes the tasks for configuring the RSVP Support for Frame Relay feature. For complete conceptual information, see the section RSVP Support for
More informationMulticast and Quality of Service. Internet Technologies and Applications
Multicast and Quality of Service Internet Technologies and Applications Aims and Contents Aims Introduce the multicast and the benefits it offers Explain quality of service and basic techniques for delivering
More informationMultimedia Networking
CE443 Computer Networks Multimedia Networking Behnam Momeni Computer Engineering Department Sharif University of Technology Acknowledgments: Lecture slides are from Computer networks course thought by
More informationFragmenting and Interleaving Real-Time and Nonreal-Time Packets
CHAPTER 16 Fragmenting and Interleaving Real-Time and Nonreal-Time Packets Integrating delay-sensitive real-time traffic with nonreal-time data packets on low-speed links can cause the real-time packets
More informationComparing the bandwidth and priority Commands of a QoS Service Policy
Comparing the and priority s of a QoS Service Policy Contents Introduction Prerequisites Requirements Components Used Conventions Summary of Differences Configuring the Configuring the priority Which Traffic
More informationEpisode 5. Scheduling and Traffic Management
Episode 5. Scheduling and Traffic Management Part 3 Baochun Li Department of Electrical and Computer Engineering University of Toronto Outline What is scheduling? Why do we need it? Requirements of a scheduling
More informationNetwork Layer Enhancements
Network Layer Enhancements EECS 122: Lecture 14 Department of Electrical Engineering and Computer Sciences University of California Berkeley Today We have studied the network layer mechanisms that enable
More informationWeek 7: Traffic Models and QoS
Week 7: Traffic Models and QoS Acknowledgement: Some slides are adapted from Computer Networking: A Top Down Approach Featuring the Internet, 2 nd edition, J.F Kurose and K.W. Ross All Rights Reserved,
More informationLesson 14: QoS in IP Networks: IntServ and DiffServ
Slide supporting material Lesson 14: QoS in IP Networks: IntServ and DiffServ Giovanni Giambene Queuing Theory and Telecommunications: Networks and Applications 2nd edition, Springer All rights reserved
More informationDiffServ Architecture: Impact of scheduling on QoS
DiffServ Architecture: Impact of scheduling on QoS Introduction: With the rapid growth of the Internet, customers are demanding multimedia applications such as telephony and video on demand, to be available
More informationNetwork Support for Multimedia
Network Support for Multimedia Daniel Zappala CS 460 Computer Networking Brigham Young University Network Support for Multimedia 2/33 make the best of best effort use application-level techniques use CDNs
More informationMultimedia Applications over Packet Networks
Multimedia Networking and Quality of Service Mario Baldi Technical Univeristy of Torino Computer Engineering Department mario.baldi@polito.it +39 011 564 7067 staff.polito.it/mario.baldi Nota di Copyright
More informationMultimedia networking: outline
Multimedia networking: outline 9.1 multimedia networking applications 9.2 streaming stored video 9.3 voice-over-ip 9.4 protocols for real-time conversational applications: SIP Skip RTP, RTCP 9.5 network
More informationCS 457 Multimedia Applications. Fall 2014
CS 457 Multimedia Applications Fall 2014 Topics Digital audio and video Sampling, quantizing, and compressing Multimedia applications Streaming audio and video for playback Live, interactive audio and
More informationQUALITY of SERVICE. Introduction
QUALITY of SERVICE Introduction There are applications (and customers) that demand stronger performance guarantees from the network than the best that could be done under the circumstances. Multimedia
More informationMultimedia Networking and Quality of Service
Multimedia Networking and Quality of Service Mario Baldi Politecnico di Torino (Technical Univeristy of Torino) Department of Computer Engineering mario.baldi [at] polito.it +39 011 564 7067 staff.polito.it/mario.baldi
More informationMohammad Hossein Manshaei 1393
Mohammad Hossein Manshaei manshaei@gmail.com 1393 Voice and Video over IP Slides derived from those available on the Web site of the book Computer Networking, by Kurose and Ross, PEARSON 2 Multimedia networking:
More informationMaster Course Computer Networks IN2097
Chair for Network Architectures and Services Prof. Carle Department for Computer Science TU München Chair for Network Architectures and Services Prof. Carle Department for Computer Science TU München Master
More informationMaster Course Computer Networks IN2097
Chair for Network Architectures and Services Prof. Carle Department for Computer Science TU München Master Course Computer Networks IN2097 Prof. Dr.-Ing. Georg Carle Christian Grothoff, Ph.D. Chair for
More informationQuality of Service II
Quality of Service II Patrick J. Stockreisser p.j.stockreisser@cs.cardiff.ac.uk Lecture Outline Common QoS Approaches Best Effort Integrated Services Differentiated Services Integrated Services Integrated
More informationENSC 427 Communication Networks
1 ENSC 427 Communication Networks Final Project Demo Spring 2011 Comparison and analysis of FIFO, PQ, and WFQ Disciplines in OPNET 2 Introduction and Motivation Queuing methods are used to handle network
More informationImproving QOS in IP Networks. Principles for QOS Guarantees
Improving QOS in IP Networks Thus far: making the best of best effort Future: next generation Internet with QoS guarantees RSVP: signaling for resource reservations Differentiated Services: differential
More informationEE 122: Differentiated Services
What is the Problem? EE 122: Differentiated Services Ion Stoica Nov 18, 2002 Goal: provide support for wide variety of applications: - Interactive TV, IP telephony, on-line gamming (distributed simulations),
More informationCSCD 433/533 Advanced Networks Spring Lecture 22 Quality of Service
CSCD 433/533 Advanced Networks Spring 2016 Lecture 22 Quality of Service 1 Topics Quality of Service (QOS) Defined Properties Integrated Service Differentiated Service 2 Introduction Problem Overview Have
More informationLecture 14: Performance Architecture
Lecture 14: Performance Architecture Prof. Shervin Shirmohammadi SITE, University of Ottawa Prof. Shervin Shirmohammadi CEG 4185 14-1 Background Performance: levels for capacity, delay, and RMA. Performance
More informationLecture 17: Distributed Multimedia
06-06798 Distributed Systems Lecture 17: Distributed Multimedia Distributed Systems 1 Overview Characteristics of multimedia systems audio, video, etc delivery in real time, on time Quality of service
More informationKent State University
CS 4/54201 Computer Communication Network Kent State University Dept. of Computer Science www.mcs.kent.edu/~javed/class-net06f/ 1 A Course on Networking and Computer Communication LECT-11, S-2 Congestion
More informationReal-Time Control Protocol (RTCP)
Real-Time Control Protocol (RTCP) works in conjunction with RTP each participant in RTP session periodically sends RTCP control packets to all other participants each RTCP packet contains sender and/or
More informationQoS provisioning. Lectured by Alexander Pyattaev. Department of Communications Engineering Tampere University of Technology
QoS provisioning Lectured by Alexander Pyattaev Department of Communications Engineering Tampere University of Technology alexander.pyattaev@tut.fi March 6, 2012 Outline 1 Introduction 2 QoS support elements
More informationPrioritizing Services
CHAPTER 8 Voice, video, and data applications have differing quality of service needs. Voice applications, for example, require a small but guaranteed amount of bandwidth, are less tolerant of packet delay
More informationRecommended QoS Configuration Settings for NETGEAR R6400 Wireless Router
Recommended QoS Configuration Settings for NETGEAR R6400 Wireless Router Recommended QoS Configuration NETGEAR R6400 Contents Contents Introduction....................................... 3 Supported Browsers
More informationModule objectives. Integrated services. Support for real-time applications. Real-time flows and the current Internet protocols
Integrated services Reading: S. Keshav, An Engineering Approach to Computer Networking, chapters 6, 9 and 4 Module objectives Learn and understand about: Support for real-time applications: network-layer
More informationResource allocation in networks. Resource Allocation in Networks. Resource allocation
Resource allocation in networks Resource Allocation in Networks Very much like a resource allocation problem in operating systems How is it different? Resources and jobs are different Resources are buffers
More informationCEN445 Network Protocols & Algorithms. Network Layer. Prepared by Dr. Mohammed Amer Arafah Summer 2008
CEN445 Network Protocols & Algorithms Network Layer Prepared by Dr. Mohammed Amer Arafah Summer 2008 1 Congestion Control Algorithms General Principles of Congestion Control Congestion Prevention Policies
More informationEpisode 5. Scheduling and Traffic Management
Episode 5. Scheduling and Traffic Management Part 2 Baochun Li Department of Electrical and Computer Engineering University of Toronto Keshav Chapter 9.1, 9.2, 9.3, 9.4, 9.5.1, 13.3.4 ECE 1771: Quality
More informationIntroduction to Real-Time Communications. Real-Time and Embedded Systems (M) Lecture 15
Introduction to Real-Time Communications Real-Time and Embedded Systems (M) Lecture 15 Lecture Outline Modelling real-time communications Traffic and network models Properties of networks Throughput, delay
More informationLecture Outline. Bag of Tricks
Lecture Outline TELE302 Network Design Lecture 3 - Quality of Service Design 1 Jeremiah Deng Information Science / Telecommunications Programme University of Otago July 15, 2013 2 Jeremiah Deng (Information
More informationATM Hierarchical Shaping ATM VC into VP Shaping, page 1
ATM Hierarchical Shaping ATM VC into VP Shaping, page 1 Traffic shaping is a quality of service (QoS) mechanism that is used to manage the network traffic by shaping the traffic to a specified rate. Traffic
More informationFairness, Queue Management, and QoS
Fairness, Queue Management, and QoS 15-441 Fall 2017 Profs Peter Steenkiste & Justine Sherry Slides borrowed from folks at CMU, Berkeley, and elsewhere. YINZ I AM GETTING T-SHIRTS If you TA for me next
More informationOptimizing the Internet Quality of Service and Economics for the Digital Generation. Dr. Lawrence Roberts President and CEO,
Optimizing the Internet Quality of Service and Economics for the Digital Generation Dr. Lawrence Roberts President and CEO, lroberts@anagran.com Original Internet Design File Transfer and Remote Computing
More informationRecommended QoS Configuration Settings for. AdTran NetVanta 3448 Router
Recommended QoS Configuration Settings for AdTran NetVanta 3448 Router Recommended QoS Configuration AdTran NetVanta 3448 Contents Contents Introduction....................................... 3 Supported
More informationCSCI Spring Final Exam Solution
CSCI 4211 16Spring Final Exam Solution 1. When an IP packet arrives a router, how the router decides what is the next router (output link) this packet to be forwarded to? What are the routing table and
More informationQoS Policy Parameters
CHAPTER 6 This chapter describes the parameters, both required and optional, for QoS provisioning using the ISC user interface. Service level QoS parameters include all entry fields in the VoIP, Management,
More informationCongestion Management Overview
Congestion management features allow you to control congestion by determining the order in which packets are sent out an interface based on priorities assigned to those packets. Congestion management entails
More informationAdvanced Lab in Computer Communications Meeting 6 QoS. Instructor: Tom Mahler
Advanced Lab in Computer Communications Meeting 6 QoS Instructor: Tom Mahler Motivation Internet provides only single class of best-effort service. Some applications can be elastic. Tolerate delays and
More informationRSVP and the Integrated Services Architecture for the Internet
RSVP and the Integrated Services Architecture for the Internet N. C. State University CSC557 Multimedia Computing and Networking Fall 2001 Lecture # 20 Roadmap for Multimedia Networking 2 1. Introduction
More informationQuality of Service (QoS)
CEN445 Network Protocols and Algorithms Chapter 5 Network Layer 5.4 Quality of Service Dr. Mostafa Hassan Dahshan Department of Computer Engineering College of Computer and Information Sciences King Saud
More informationQuality of Service Mechanism for MANET using Linux Semra Gulder, Mathieu Déziel
Quality of Service Mechanism for MANET using Linux Semra Gulder, Mathieu Déziel Semra.gulder@crc.ca, mathieu.deziel@crc.ca Abstract: This paper describes a QoS mechanism suitable for Mobile Ad Hoc Networks
More informationCisco ASR 1000 Series Aggregation Services Routers: QoS Architecture and Solutions
Cisco ASR 1000 Series Aggregation Services Routers: QoS Architecture and Solutions Introduction Much more bandwidth is available now than during the times of 300-bps modems, but the same business principles
More informationCSE 123b Communications Software
CSE 123b Communications Software Spring 2002 Lecture 10: Quality of Service Stefan Savage Today s class: Quality of Service What s wrong with Best Effort service? What kinds of service do applications
More informationQuality of Service (QoS)
Quality of Service (QoS) A note on the use of these ppt slides: We re making these slides freely available to all (faculty, students, readers). They re in PowerPoint form so you can add, modify, and delete
More informationThe Diffie-Hellman Key Exchange
ISC: SECURITY AND QOS The Diffie-Hellman Key Exchange A mechanism to establish secret keys without the need for CAs Based on the difficulty of computing discrete logarithms of large numbers Public (or
More informationCommon network/protocol functions
Common network/protocol functions Goals: Identify, study common architectural components, protocol mechanisms Synthesis: big picture Depth: important topics not covered in introductory courses Overview:
More informationProject Computer Networking. Resource Management Approaches. Start EARLY Tomorrow s recitation. Lecture 20 Queue Management and QoS
Project 3 15-441 Computer Networking Start EARLY Tomorrow s recitation Lecture 20 Queue Management and QoS Lecture 20: QOS (c) CMU, 2005-10 2 Traffic and Resource Management Resource Management Approaches
More informationLecture 17 Multimedia Transport Subsystem (Part 3)
CS 414 Multimedia Systems Design Lecture 17 Multimedia Transport Subsystem (Part 3) Klara Nahrstedt Spring 2010 Administrative MP2: deadline Monday, March 1, demos 5-7pm (sign up in class on Monday) HW1:
More informationCongestion Control Open Loop
Congestion Control Open Loop Muhammad Jaseemuddin Dept. of Electrical & Computer Engineering Ryerson University Toronto, Canada References 1. A. Leon-Garcia and I. Widjaja, Communication Networks: Fundamental
More informationAffects of Queuing Mechanisms on RTP Traffic Comparative Analysis of Jitter, End-to- End Delay and Packet Loss
Comparative Analysis of Jitter, End-to- End Delay and Packet Loss Gregory Epiphaniou 1 Carsten Maple 1 Paul Sant 1 Matthew Reeves 2 1 Institute for Research in Applicable Computing University of Bedfordshire
More informationLecture 22: Buffering & Scheduling. CSE 123: Computer Networks Alex C. Snoeren
Lecture 22: Buffering & Scheduling CSE 123: Computer Networks Alex C. Snoeren Lecture 23 Overview Buffer Management FIFO RED Traffic Policing/Scheduling 2 Key Router Challenges Buffer management: which
More informationMultimedia Networking
Multimedia Networking Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@wustl.edu Audio/Video recordings of this lecture are available on-line at: http://www.cse.wustl.edu/~jain/cse473-09/
More informationKommunikationssysteme [KS]
Kommunikationssysteme [KS] Dr.-Ing. Falko Dressler Computer Networks and Communication Systems Department of Computer Sciences University of Erlangen-Nürnberg http://www7.informatik.uni-erlangen.de/~dressler/
More informationJournal of Electronics and Communication Engineering & Technology (JECET)
Journal of Electronics and Communication Engineering & Technology (JECET) JECET I A E M E Journal of Electronics and Communication Engineering & Technology (JECET)ISSN ISSN 2347-4181 (Print) ISSN 2347-419X
More informationConfiguring QoS Policy Actions and Rules
CHAPTER 3 The second step in creating a QoS service policy is to define how you want the router to handle the packets that match the classification rules you defined in Chapter 2, Classifying Traffic.
More informationMultiplexing. Common network/protocol functions. Multiplexing: Sharing resource(s) among users of the resource.
Common network/protocol functions Goals: Identify, study common architectural components, protocol mechanisms Synthesis: big picture Depth: Important topics not covered in introductory courses Overview:
More informationMQC Hierarchical Queuing with 3 Level Scheduler
MQC Hierarchical Queuing with 3 Level Scheduler The MQC Hierarchical Queuing with 3 Level Scheduler feature provides a flexible packet scheduling and queuing system in which you can specify how excess
More informationDistributed Traffic Shaping for Line Cards in the Cisco Gigabit Switch Router
Distributed Traffic Shaping for Line Cards in the Cisco 12000 Gigabit Switch Router This document describes the Distributed Traffic Shaping (DTS) feature for the 12000 series Gigabit Route Processor line
More informationMultimedia networking: outline
Multimedia networking: outline 7.1 multimedia networking applications 7.2 streaming stored video 7.3 voice-over-ip 7.4 protocols for real-time conversational applications: RTP, SIP 7.5 network support
More informationCisco. Implementing Cisco Service Provider Next-Generation Core Network Services Version: Demo. Web:
Cisco 642-887 Implementing Cisco Service Provider Next-Generation Core Network Services Web: www.marks4sure.com Email: support@marks4sure.com Version: Demo [ Total Questions: 10] IMPORTANT NOTICE Feedback
More informationPart1: Lecture 4 QoS
Part1: Lecture 4 QoS Last time Multi stream TCP: SCTP Multi path TCP RTP and RTCP SIP H.323 VoIP Router architectures Overview two key router functions: run routing algorithms/protocol (RIP, OSPF, BGP)
More informationBandwidth Allocation for DiffServ based Quality of Service over
Bandwidth Allocation for DiffServ based Quality of Service over 82.11 Martin Heusse, Paul Starzetz, Franck Rousseau, Gilles Berger-Sabbatel, Andrzej Duda LSR-IMAG Laboratory Grenoble, France email: {heusse,
More informationPacket Scheduling and QoS
Packet Scheduling and QoS EECS 489 Computer Networks http://www.eecs.umich.edu/~zmao/eecs489 Z. Morley Mao Thursday Oct 14, 2004 Acknowledgement: Some slides taken from Kurose&Ross and Katz&Stoica 1 Packet
More information2 Network Basics. types of communication service. how communication services are implemented. network performance measures. switching.
2 Network Basics types of communication service how communication services are implemented switching multiplexing network performance measures 1 2.1 Types of service in a layered network architecture connection-oriented:
More informationDefining QoS for Multiple Policy Levels
CHAPTER 13 In releases prior to Cisco IOS Release 12.0(22)S, you can specify QoS behavior at only one level. For example, to shape two outbound queues of an interface, you must configure each queue separately,
More informationChapter -6 IMPROVED CONGESTION CONTROL MECHANISM FOR REAL TIME DATA TRANSMISSION
Chapter -6 IMPROVED CONGESTION CONTROL MECHANISM FOR REAL TIME DATA TRANSMISSION Chapter 6 IMPROVED CONGESTION CONTROL MECHANISM FOR REAL TIME DATA TRANSMISSION 6.1 Introduction Supporting Quality of Service
More informationConfiguring QoS CHAPTER
CHAPTER 34 This chapter describes how to use different methods to configure quality of service (QoS) on the Catalyst 3750 Metro switch. With QoS, you can provide preferential treatment to certain types
More informationUnderstanding SROS Priority Queuing, Class-Based WFQ, and QoS Maps
Configuration Guide 5991-2121 May 2006 Understanding SROS Priority Queuing, Class-Based WFQ, and QoS Maps This Configuration Guide explains the concepts behind configuring your Secure Router Operating
More informationRouter Design: Table Lookups and Packet Scheduling EECS 122: Lecture 13
Router Design: Table Lookups and Packet Scheduling EECS 122: Lecture 13 Department of Electrical Engineering and Computer Sciences University of California Berkeley Review: Switch Architectures Input Queued
More informationComputer Networking. Queue Management and Quality of Service (QOS)
Computer Networking Queue Management and Quality of Service (QOS) Outline Previously:TCP flow control Congestion sources and collapse Congestion control basics - Routers 2 Internet Pipes? How should you
More informationQuality of Service (QoS) Computer network and QoS ATM. QoS parameters. QoS ATM QoS implementations Integrated Services Differentiated Services
1 Computer network and QoS QoS ATM QoS implementations Integrated Services Differentiated Services Quality of Service (QoS) The data transfer requirements are defined with different QoS parameters + e.g.,
More informationH3C S9500 QoS Technology White Paper
H3C Key words: QoS, quality of service Abstract: The Ethernet technology is widely applied currently. At present, Ethernet is the leading technology in various independent local area networks (LANs), and
More informationOutline EEC-682/782 Computer Networks I. Midterm 1 Statistics. Midterm 1 Statistics. High 99, Low 34, Average 66
Outline EEC-682/782 Computer Networks I Lecture 12 Wenbing Zhao w.zhao1@csuohio.edu http://academic.csuohio.edu/zhao_w/teaching/eec682.htm (Lecture nodes are based on materials supplied by Dr. Louise Moser
More informationA Comparative Study of Different Queuing Scheduling Disciplines
RESEARCH ARTICLE OPEN ACCESS A Comparative Study of Different Queuing Scheduling Disciplines Sarhan M. Musa, Mahamadou Tembely, Matthew N. O. Sadiku, And Pamela Obliomon Roy G. Perry College of Engineering,
More informationATM Quality of Service (QoS)
ATM Quality of Service (QoS) Traffic/Service Classes, Call Admission Control Usage Parameter Control, ABR Agenda Introduction Service Classes and Traffic Attributes Traffic Control Flow Control Special
More informationVoIP Protocols and QoS
Announcements I. Times have been posted for demo slots VoIP Protocols and QoS II. HW5 and HW6 solutions have been posted HW6 being graded Internet Protocols CSC / ECE 573 Fall, 2005 N. C. State University
More information