PPT-Never Been KIST: Tor’s Congestion Management Blossoms with Kernel-Informed Socket Transport

Author : pamella-moone | Published Date : 2018-02-19

23 rd USENIX Security Symposium August 20 th 2014 Rob Jansen US Naval Research Laboratory John Geddes University of Minnesota Chris Wacek Georgetown University

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Never Been KIST: Tor’s Congestion Management Blossoms with Kernel-Informed Socket Transport: Transcript

23 rd USENIX Security Symposium August 20 th 2014 Rob Jansen US Naval Research Laboratory John Geddes University of Minnesota Chris Wacek Georgetown University Micah Sherr Georgetown University. Transport Layer. 3-. 2. Principles of Congestion Control. Congestion:. informally: “too many sources sending too much data too fast for . network. to handle”. different from flow control!. manifestations:. q ueMax Tor q ueMin Tor q ueMax Tor q ueMin Tor q ueMax Tor q Class 900Class 1500Class 2500Spiral Wound Gasket CGNPS (in.) q q q q q q 0.57012070120501000.757012070120701001101901101901101601.25110190 Welcome to Blossoms Nursery . Blossoms Nursery team extends a warm welcome to our Nursery where we hope your child will enjoy learning and developing in a caring, safe, happy and homely environment. . With . TCP and UDP. Christoffer. . Brodd-Reijer. Zaruhi. . Aslanyan. Socket. High level connection between two hosts. Identified by port+IP. Transport layer (UDP, TCP, etc) or raw IP. Socket. Similar to operating on a file:. Professor: Dr. . Shu-Ching. Chen. TA: . Hsin. -Yu Ha. What is socket?. An interface between an application process. An Application Programming Interface (API) used for . InterProcess. Communications (IPC). Michael F. . Nowlan. , . David . Wolinsky. , and Bryan Ford. Yale University. Dedis. Lab. Tor – The Onion . Router. Bob. Server. 00. Server. 10. Server. 20. Server. 01. Server. 11. Server. 21. Server. Hakim . Weatherspoon. Assistant Professor, . Dept. of Computer Science. CS 5413: High Performance Systems and Networking. September 3, 2014. Slides used and adapted . judiciously from Computer Networking, A Top-Down Approach. Robin Snader and Nikita Borisov. Presented by Zechun Cao. Tor Design. Proposed Method. Bandwidth Measurement. Router Selection Algorithm. Evaluation and Discussions. Overview. Tor Design. Tor connects client and destination server by a 3-node circuit. CS 381. 3/7/2017. Transport. . Layer. 3-. 2. Chapter 3 outline. 3.1 transport-layer services. 3.2 multiplexing and . demultiplexing. 3.3 connectionless transport: UDP. 3.4 principles of reliable data transfer. - CS324e. Overview. Visualization - Animal Populations. Description of . Wa. -Tor World. Demos. Wa-tor World. Predator – Prey Equations. Wa-tor World. a.k.a. . Lotka. –. Volterra. equations. x = number of animals that are. Congestion Control. If the transport entities on many machines send too many packets into the network too quickly, the network will become congested, with performance degraded as the packets are delayed and lost.. , the scheme is estimated to save £2.5 million per year as a result ofa reduction in vehicle kilometres travelled, fuel consumption and Transport for London website, “Congestion Charging” (2007 3 authority with sufficient resources and power to move the urban transport agenda at the required fast pace to meet Cairo’s increasing congestion challenges. 2 5 . World experience in tackling t 3.1 transport-layer services. 3.2 multiplexing and demultiplexing. 3.3 connectionless transport: UDP. 3.4 principles of reliable data transfer. 3.5 connection-oriented transport: TCP. segment structure.

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