Eg sending rate alens 70 60 50 40 30 20 10 10 15 20 25

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 476 What can we do about it? •  Two types of losses: conges)on and corrup)on •  One op)on: mask corrup)on losses from TCP –  Retransmissions at the link layer –  E.g. Snoop TCP: intercept duplicate acknowledgments, retransmit locally, filter them from the sender •  Another op)on: –  Tell the sender about the cause for the drop –  Requires modifica)on to the TCP endpoints Conges)on Avoidance •  TCP creates conges)on to then back off –  Queues at bolleneck link are omen full: increased delay –  Sawtooth palern: jiler •  Alterna)ve strategy –  Predict when conges)on is about to happen –  Reduce rate early •  Two approaches –  Host centric: TCP Vegas –  Router- centric: RED, DECBit TCP Vegas TCP Vegas KB Idea: source watches for somessigntthat router’s queue is building up •  Idea: source watches for ign hat...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern