Prevents sender from over running receiver buffers u tell sender how much

Prevents sender from over running receiver buffers u

This preview shows page 13 - 17 out of 17 pages.

Prevents sender from over-running receiver buffers u (tell sender how much buffer is left at receiver) Congestion control (later in term) u Prevents sender from over-running network capacity 15 CSE 123 – Lecture 6: Transport Layer Protocols
Image of page 13

Subscribe to view the full document.

TCP Delivery Application process Write bytes TCP Send buffer Segment Segment Segment Transmit segments Application process Read bytes TCP Receive buffer 16 CSE 123 – Lecture 6: Transport Layer Protocols What corresponds to the receive window size? A. Segment size B. Bandwidth*delay product C. Send buffer space D. Receive buffer space
Image of page 14
TCP Header Format Ports plus IP addresses identify a connection ( 4-tuple ) Options (variable) Data Checksum SrcPort DstPort HdrLen 0 Flags UrgPtr AdvertisedWindow SequenceNum Acknowledgment 0 4 10 16 31 17 CSE 123 – Lecture 6: Transport Layer Protocols
Image of page 15

Subscribe to view the full document.

TCP Header Format Sequence, Ack numbers used for the sliding window u How big a window? Flow control/congestion control determine 18 Options (variable) Data Checksum SrcPort DstPort HdrLen 0 Flags UrgPtr AdvertisedWindow SequenceNum Acknowledgment 0 4 10 16 31 CSE 123 – Lecture 6: Transport Layer Protocols
Image of page 16
TCP Header Format Flags may be ACK, SYN, FIN, URG, PSH, RST Options (variable) Data Checksum SrcPort DstPort HdrLen 0 Flags UrgPtr AdvertisedWindow SequenceNum Acknowledgment 0 4 10 16 31 19 CSE 123 – Lecture 6: Transport Layer Protocols
Image of page 17
  • Fall '08
  • Varghese,G

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

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes