Course overview - som.csudh.edu

Course overview - som.csudh.edu

The transport layer Skills: Concepts: layered protocols, transport layer functions, TCP and UDP protocols, isochronous applications This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License. Where does this topic fit? Internet concepts Applications Technology (communication) Implications

Internet skills Application development Content creation User skills TCP/IP from the outside Application Program, for example, a Web client A TCP/IP network

Application Program, for Example, a Web server The transport layer Layer Function Application Do useful work like Web browsing, email, and file transfer

Transport Transport data between application programs running on two hosts Internet Route packets between networks (inter network) Data link Send data within the local area network

Physical Specify hardware characteristics and ways to differentiate between ones and zeros Key TCP functions Establish connections Check for errors Reorder packets ACBABC

Slow transmission Which program (port)? (Transmission control protocol) ftp, web, send email, read email, iTunes, Which destination program (port)? Program 1

11101 TCP Program 2 Program n Key UDP functions Establish connections Which application

(port)? (Transmission control protocol) ftp, web, send email, read email, iTunes, UDP sounds lame Web clients and servers use TCP. File transfer clients and servers use TCP. But Streaming video clients and servers use UDP. Internet telephony clients and servers use UDP.

Why? Isochronous applications Summary ACBABC ftp, web, send email, read email, iTunes, Self study questions 1.

2. 3. 4. 5. 6. 7. 8. We mentioned five key functions of TCP what were they? UDP only performs two of those functions, which ones? What is the purpose of the port number in TCP header? Would UDP also use port numbers? Explain your answer. What is the purpose of the IP address in a TCP header?

Would UDP also use IP addresses? Explain your answer. Would a video conferencing application use UDP or TCP for transport? Explain your answer. We say that TCP makes connections. Making a connection is just two computers exchanging IP addresses and agreeing on which port numbers to use during their conversation. Explain that statement.

Recently Viewed Presentations

  • EE 7730: Lecture 1 - LSU

    EE 7730: Lecture 1 - LSU

    An alternative is to start with the whole image as a single region and subdivide the regions that do not satisfy a condition of homogeneity. Region Merging Region merging is the opposite of region splitting. Start with small regions (e.g....
  • The Importance of Working with Victims of Sexual Abuse

    The Importance of Working with Victims of Sexual Abuse

    Dr Dawn Fisher St Andrew's Healthcare & the University of Birmingham, UK ... the prevalence of sexual offences against children is alarming Probably the latest study in the U.K. (Cawson, Wattam, Brooker, & Kelly, 2000) found that 16% of girls...
  • Impending Crisis - reynolds.k12.pa.us

    Impending Crisis - reynolds.k12.pa.us

    Eventual victory, but not as quickly as many had hoped. ... Pottowatomie Massacre: John Brown and followers mutilated and killed 5 pro-slavery supporters and left their bodies to discourage any other pro-slavery supporters. The Dred Scott Decision.
  • Chapter 22The Nature of Light Material on the

    Chapter 22The Nature of Light Material on the

    How EM Waves are Produced. ... Light is a major energy source for our planet. Plants use it to make food. Animals eat these plants. ... Television has color because each "dot" has a group of red, green, and blue...
  • NORHED-MAK FUNDED PROJECTS AT GLANCE NORHED - Norwegian

    NORHED-MAK FUNDED PROJECTS AT GLANCE NORHED - Norwegian

    Building capacity for REDD+ in East Africa for improved ecosystem health and for sustainable livelihoods in Eastern Africa (UGA-13/0019) REDD+ is aimed at supporting activities to reduce CO 2. emissions that are caused by deforestation and forest degradation. This project...
  • Title Title line two

    Title Title line two

    The code does not change the basic nature of what we do, but instead it articulates the way we strive to achieve our goals and conduct ourselves. The Code is underpinned by our Values - Compassion, Justice, Integrity and Excellence...
  • スライド 1

    スライド 1

    Characteristics of the spherical aberrations of three aspherical intraocular lenses by measurement in a model eye Department of Ophthalmology, Nara Medical University
  • Chapter 3 Demand and Supply

    Chapter 3 Demand and Supply

    The relationship between quantity supplied and the price of output is such that an increase in quantity will automatically lead to a reduction in price. an increase in price will lead to an increase in quantity supplied. an increase in...