'Queuing delay' diaporamas de présentation

Quality of Service Differentiation

Quality of Service Differentiation. Dr. Edward Chow CS 522, UCCS Fall 2004 Humzah Jaffar. What is QoS?. Related to a stream of packets from a source to a destination QoS determined by these quality of these parameters of the stream (low, medium, high): Reliability Delay Jitter Bandwidth.

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Chapter 15

749 views • 64 slides

IP QOS Mechanisms

IP QOS Mechanisms. Prepared by ??????? ????????? Last update: 12-05-2003. QoS Metrics QoS Introduction QoS Architecture RSVP Protocol IntServ, Integrated Services Model DiffServ, Differentiated Services Model. QoS Metrics. What means Quality of Service ?.

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Basic Concepts (part 2): packet delays and layering

Basic Concepts (part 2): packet delays and layering. CS168 , Fall 2014 Sylvia Ratnasamy http://inst.eecs.berkeley.edu/~cs168/fa14 /. Administrivia. Discussion sections start Monday, Sep 15 Homework#1 out tonight announce homework logistics. Plan of attack. What is a network made of?

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IT-321

IT-321. Internet Architecture and Protocols M.Sc. IT Semester 2. Lecture 02 - Roadmap. Internet Service Providers and Internet Backbones ISP Categories POPs and NAPs Delay and Loss in Packet Switched Networks Types of Delay Comparing Transmission and Propagation Delay

632 views • 50 slides

Computer Networks An Introduction

Computer Networks An Introduction. Prepared by S.Perry (February 2010). To present a comprehensive view of the principles and fundamental concepts in Computer Networks To learn about the basics in design and implementation of network protocols

665 views • 43 slides

Chapter 17

Chapter 17. Integrated Services & Differentiated Services. Introduction. Modern Internet applications demand services not provided by a best-effort service model Two complementary, yet fundamentally different, traffic management frameworks have evolved:

645 views • 38 slides

Presented by Sundar P Subramani

Bandwidth Estimation: Metrics Mesurement Techniques and Tools By Ravi Prasad, Constantinos Dovrolis, Margaret Murray and Kc Claffy IEEE Network, Nov/Dec 2003. Presented by Sundar P Subramani. Outline. Introduction Metrics Capacity Available bandwidth

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Zhili Zhao A.L.NarasimhaReddy Department of Electrical Engineering Texas A&M University

Impact of bandwidth-delay product and non-responsive flows on the performance of queue management schemes. Zhili Zhao A.L.NarasimhaReddy Department of Electrical Engineering Texas A&M University reddy@ee.tamu.edu June 23 2004, ICC. ? Motivation Performance Evaluation Results & Analysis

412 views • 32 slides

Progression and propagation of internet congestion

Progression and propagation of internet congestion. Jim Gast University of Wisconsin / Madison Feb 19, 2002. When are losses likely?. When queuing delay is high? When queuing delay is rising fast? When queuing delay levels off? Randomly?. Queuing delay component in milliseconds. Time.

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When TCP Friendliness Becomes Harmful

Amit Mondal Aleksandar Kuzmanovic Northwestern University. When TCP Friendliness Becomes Harmful. http://networks.cs.northwestern.edu/. Introduction. Internet was designed for throughput TCP probes for available b/w even if it causes packet losses Interactive applications suffer!

451 views • 22 slides

Integrated Service Mappings for Differentiated Service Networks

Integrated Service Mappings for Differentiated Service Networks. HCNL HONG KI HUN. Introduction. Integrated Service onto Differentiated service network PHB ? ???? Intserv ?? the aggregate level rather than the per-application-flow level. Intserv Mappings for Diffserv Networks. Components.

432 views • 22 slides

Monitoring Persistently Congested Internet Links

Monitoring Persistently Congested Internet Links. Leiwen (Karl) Deng Aleksandar Kuzmanovic Northwestern University. http://networks.cs.northwestern.edu. Objective. New probing methods that can improve measurement observability for core congestion

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Minimum-Delay Load-Balancing Through Non-Parametric Regression F. Larroca and J.-L. Rougier

Minimum-Delay Load-Balancing Through Non-Parametric Regression F. Larroca and J.-L. Rougier. IFIP/TC6 Networking 2009 Aachen, Germany, 11-15 May 2009. Introduction. Current traffic is highly dynamic and unpredictable

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Lecture 8: Ethernet and Token Ring Networks

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Robust Regression for Minimum-Delay Load-Balancing F. Larroca and J.-L. Rougier

Robust Regression for Minimum-Delay Load-Balancing F. Larroca and J.-L. Rougier. 21st International Teletraffic Congress (ITC 21) Paris, France, 15-17 September 2009. Introduction. Current traffic is highly dynamic and unpredictable

291 views • 17 slides

LMINET2: An Enhanced LMINET

LMINET2: An Enhanced LMINET. Dou Long, Shahab Hasan dlong@lmi.org December 10, 2008. Old LMINET. Refers to a suite of models Separate commercial and GA traffic schedule forecast models NAS-wide operations/delay model NAS-wide projected throughput schedule construction model

218 views • 15 slides

On Static WCET Analysis Vs. Run-time Monitoring of Execution Time

On Static WCET Analysis Vs. Run-time Monitoring of Execution Time. Charles D. Cavanaugh, Ph.D. The Center for Advanced Computer Studies University of Louisiana at Lafayette. Introduction. Safety critical and mission critical software Input, process, output Ex. Air-traffic control

257 views • 15 slides