'Congestion control' diaporamas de présentation

Link Characteristic Information for Mobile IPTV QoS Support Soohong Daniel Park, Standard Architect Digital Media R&D Center, Samsung Electronics Blog: http://blog.naver.com/natpt/ Email: soohong.park@samsung.com Outlook on Mobile IPTV - Definition

Advance Computer Networking. L-4 TCP Acknowledgments: Lecture slides are from the graduate level Computer Networks course thought by Srinivasan Seshan at CMU. When slides are obtained from other sources, a reference will be noted on the bottom of that slide. This Lecture: Congestion Control.

TCP/IP Over Lossy Links - TCP SACK without Congestion Control. Organization. The History of TCP 2. Current TCP Congestion Control 3. Design Ideas: no congestion control at all 4. Measurement Results 5. Future TCP Congestion Control? 6. Conclusion. But.

learn about transport layer protocols in the Internet: UDP: connectionless transport TCP: connection-oriented transport TCP congestion control. Our goals: understand principles behind transport layer services: multiplexing/ demultiplexing reliable data transfer flow control

DoS-resistant Internet - progress. Bob Briscoe Jun 2005. BT activity. Research 2020 Communications Architecture project DoS-resistant Internet Architecture task Network Security project BGP security control plane separation intrusion detection systems Engineering Network design

Congestion Control. Computer Networks. Where are we?. Recall. Data Link Layer Link level specific transmission Network Layer End-to-End host addressing and routing Transport Layer End-to-End application multiplexing and message flow-control

15-441 Computer Networking. Lecture 22 – Queue Management and Quality of Service Eric Anderson Fall 2013 www.cs.cmu.edu/~prs/15-441-F13. Traffic and Resource Management. Resources statistically shared Overload causes congestion packet delayed or dropped application performance suffer

IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks. OpenCV2X Mode 4: A Simulation Extension for Cellular Vehicular Communication Networks http://www.cs.ucc.ie/cv2x/ Brian McCarthy and Aisling O’Driscoll

Ασύρματα Δίκτυα και Κινητές Επικοινωνίες. Ενότητα # 1 2 : Mobile Transport Layer Διδάσκων : Βασίλειος Σύρης Τμήμα: Πληροφορικής. Congestion control in mobile & wireless networks. TCP assumes congestion if packets dropped  typically wrong in mobile & wireless networks

Chapter 24 Transport Control Protocol (TCP). Layer 4 protocol Responsible for reliable end-to-end transmission Provides illusion of reliable network to application programmers no need to worry that data will be lost, duplicated or delivered out of order

INF 5070 – Media Servers and Distribution Systems:. Protocols without QoS Support. 20/9 - 2004. Overview. Non-QoS protocols: Transport level protocols Application layer protocols Signaling protocols. Requirements for Continuous Media. Acceptable delay

Multicast Transport Protocols: A Survey and Taxonomy. Author: Katia Obraczka University of Southern California Presenter: Venkatesh Prabhakar. Contents. Introduction Taxonomy Survey of Multicast Transport Protocols Conclusion. Introduction. Earlier mechanisms

Congestion Control Workshop Summary. July 28, 2012. What can we do?. Absent changes to the network can we actually do something? Yes Is there work in the area of measurements that can we do to create “incentives” to make updates in the network happen? Yes

Our goals: understand principles behind transport layer services: multiplexing/demultiplexing reliable data transfer flow control congestion control. learn about transport layer protocols in the Internet: UDP: connectionless transport TCP: connection-oriented transport

CSEE W4140 Networking Laboratory. Lecture 7: TCP flow control and congestion control Jong Yul Kim 03.22.2010. Short review of TCP from last time. Characteristics of the IP network Delivers packets from host to host May lose packets (discarded by routers) Doesn’t care about packet order

Improving TCP Performance over Ad-hoc Network. Course Project for EE228A --- Fall 2000 (Professor Jean Walrand). Xuanming Dong, Duke Lee, and Jin Wang. 11/28/2000. Outline. TCP basics and congestion control Ad-hoc network basics Impact of ad-hoc network on TCP performance

Promoting the Use of End-to-End Congestion Control . Tapan Karwa CS590F. What is Congestion Control. Its a control problem. Its concerned with allocation of resources. The problem – limited resources. Will infinite BW, buffer space and super fast processors help?

Potential Applications of Shared Bottleneck Detection (SBD) Michael Welzl. NNUW-1 Simula , Oslo 18. 09. 2013. Context. SBD has been around for a while Papers dating back more than a decade Approach: correlate per-path measurements (e.g. OWD, ..)

15-441 Computer Networking. Lecture 18 – More TCP & Congestion Control. Outline. TCP reliability TCP congestion control. Reliability Challenges. Congestion related losses Variable packet delays What should the timeout be? Reordering of packets

SPEP: A Secure and Efficient Scheme for Bulk Data Transfer over Wireless Networks. Venkatesh Obanaik, Lillykutty Jacob, and A L Ananda Communication and Internet Research Lab National University of Singapore. Presented by Mark Johnson. Introduction.