'Drop tail' diaporamas de présentation

QoS Algorithms

QoS Algorithms. Principles for QOS Guarantees. Consider a phone application at 1Mbps and an FTP application sharing a 1.5 Mbps link. bursts of FTP can congest the router and cause audio packets to be dropped. want to give priority to audio over FTP

1.36k views • 115 slides

Congestion Control (contd)

Congestion Control (contd). Shivkumar Kalyanaraman Rensselaer Polytechnic Institute shivkuma@ecse.rpi.edu http://www.ecse.rpi.edu/Homepages/shivkuma Based in part upon slides of Prof. Raj Jain (OSU), Srini Seshan (CMU), J. Kurose (U Mass), I.Stoica (UCB). Overview.

1.12k views • 102 slides

15-441 Computer Networking

1.05k views • 58 slides

15-441 Computer Networking

Queue Management and Quality of Service (QOS). 15-441 Computer Networking. Traffic and Resource Management. Resources statistically shared Overload causes congestion packet delayed or dropped application performance suffer Local vs. network wide Transient vs. persistent Challenge

623 views • 57 slides

Introduction to NS2 -Network Simulator-

1.35k views • 54 slides

15-441 Computer Networking

577 views • 47 slides

Computer Networking

664 views • 47 slides

Random Early Detection Gateways for Congestion Avoidance *

Random Early Detection Gateways for Congestion Avoidance *. * 7496 citations as of 15Sep14. Sally Floyd and Van Jacobson, IEEE Transactions on Networking , Vol.1, No. 4, (Aug 1993), pp.397-413. Presented by Bob Kinicki. Outline. Introduction Background: Definitions and Previous Work

562 views • 42 slides

Random Early Detection Gateways for Congestion Avoidance

Random Early Detection Gateways for Congestion Avoidance. Sally Floyd and Van Jacobson, IEEE Transactions on Networking , Vol.1, No. 4, (Aug 1993), pp.397-413. Outline. Introduction Background: Definitions and Previous Work The RED Algorithm RED parameters RED simulation results

612 views • 40 slides

CS 268: Computer Networking

CS 268: Computer Networking. L-6 Router Congestion Control. TCP & Routers. RED XCP Assigned reading [FJ93] Random Early Detection Gateways for Congestion Avoidance [KHR02] Congestion Control for High Bandwidth-Delay Product Networks. Overview. Queuing Disciplines RED RED Alternatives

469 views • 38 slides

TCP & Routers

TCP & Routers. RED XCP Assigned reading [FJ93] Random Early Detection Gateways for Congestion Avoidance [KHR02] Congestion Control for High Bandwidth-Delay Product Networks. Overview. Queuing Disciplines RED RED Alternatives XCP. Queuing Disciplines.

518 views • 36 slides

15-441 Computer Networking

466 views • 36 slides

THE PROJECT: IMMERSIVE FITNESS

THE PROJECT: IMMERSIVE FITNESS. FW14 PRODUCT PR TOOLKIT. OVERVIEW. THE PROJECT: IMMERSIVE FITNESS.

502 views • 30 slides

Un-Cooperative Congestion Control

Un-Cooperative Congestion Control. Kartikeya Chandrayana Prof. Shivkumar Kalyanaraman ECSE Dept., R.P.I. chandk@rpi.edu ( http://www.rpi.edu/~chandk ). Outline. Review Motivation Previous Work Network Optimization Proposed Framework Results. Present Internet. Uses TCP .

372 views • 30 slides

TCP Congestion Control and Common AQM Schemes: Quick Revision

TCP Congestion Control and Common AQM Schemes: Quick Revision. Shivkumar Kalyanaraman Rensselaer Polytechnic Institute shivkuma@ecse.rpi.edu http://www.ecse.rpi.edu/Homepages/shivkuma Based in part upon slides of Prof. Raj Jain (OSU), Srini Seshan (CMU), J. Kurose (U Mass), I.Stoica (UCB).

402 views • 27 slides

15-441 Computer Networking

341 views • 24 slides

Queuing and Basics of QoS

Queuing and Basics of QoS. Mozafar Bag-Mohammadi. Queuing Disciplines. Each router must implement some queuing discipline Scheduling discipline Drop policy Queuing allocates both bandwidth and buffer space: Bandwidth: which packet to serve (transmit) next

337 views • 20 slides

Link Scheduling & Queuing

Link Scheduling & Queuing. COS 461: Computer Networks http://www.cs.princeton.edu/courses/archive/spr14/cos461/. Outline. Link scheduling (not covered on Monday) Queuing practice questions Miscellanea. First-In First-Out Scheduling. First-in first-out scheduling Simple, but restrictive

352 views • 20 slides

Performance of New Variants of TCP

267 views • 13 slides

A CTIVE Q UEUE M ANAGEMENT

263 views • 13 slides