1. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 1 of 14 OVERVIEW FOR NETWORKING CONCEPTS AND ADMINISTRATION CSIS 3723 Graciela Perera Department of Computer Science and Information Systems Meshel Hall 320 (330) 941 1341 gcperera@cis.ysu.edu Office Hours Mon 2:15-4:15pm and Tue 2:15-5:15pm

2. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 2 of 14 What is this course about? Introductory (first) course in computer networking  learn principles of computer networking  learn practice of computer networking  Internet architecture/protocols as case study  by the time you are finished …… Goals:  learn a lot  have fun (it should be interesting)

3. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 3 of 14 Course information Computer Networking: A Top Down Approach, 4 th edition. Jim Kurose, Keith Ross Addison-Wesley, July 2007.  course materials:  Book  class web page  introductory (first) course in computer networking  who is this course for?  undergrads, MS students  prerequisites:  Survey of Computer Science and Information Systems (CSIS 1590)

4. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 4 of 14 Course information more…  class WWW site: www.gracielaperera.com/gp/3723f10.html the most important piece of info you will receive today!  everything is posted on this site!  syllabus  class notes (powerpoint, pdf)  Participation  evaluation and grades….

5. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 5 of 14 Course overview Part 1: Introduction (Ch. 1)  what is the Internet?  what is a computer network and protocol?  network edge, network core, network access  delay, loss in packet-switched networks  protocol layers, service models  brief history of networking, Internet

6. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 6 of 14 Course overview more… We’ll cover networking top- down  end-system applications, end-end transport  network core: routing, hooking nets together  link-level protocols, e.g., Ethernet  other stuff: security, mobility, management,

7. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 7 of 14 Course overview more… Part 2: Application Layer (Ch. 2)  principles of application-layer protocols  World Wide Web: HTTP  file transfer: FTP  electronic mail in the Internet  the Internet's directory service: DNS

8. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 8 of 14 Course Overview Part 3: Transport Layer (Ch. 3)  Transport-layer services and principles  Connectionless transport: UDP  Principles of reliable of data transfer  Principles of congestion control  TCP congestion control

9. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 9 of 14 Course overview more… Part 4: Network Layer ( Ch. 4 )  introduction and network service model  what’s inside a router?  routing principles  IP: the Internet Protocol  Internet routing: RIP, OSPF, BGP

10. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 10 of 14 Course overview more… Part 5: Link Layer, LANs ( Ch. 5 )  introduction, services  error detection, correction  LANs  LAN addresses, ARP  Ethernet

11. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 11 of 14 Course overview more… Part 6: Wireless and Mobile Networks ( Ch. 6 )  wireless link characteristics  the wireless link

12. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 12 of 14 Course overview more… Part 7: Multimedia Networking ( Ch. 7 )  Multimedia applications  Streaming audio and video

13. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 13 of 14 Course overview more… Part 8: Network Security ( Ch. 8 )  what is network security?  principles of cryptography  authentication: Who are you?  key distribution, certification

14. Graciela Perera– August 23, 2010 Department of Computer Science and Information Systems Slide 14 of 14 Course overview more… Questions??? Homework for next class: Competition (Prize) Coolest network gadget or application?