Advanced Data Communication Networks Dr. Farhad Faghani Assistant Professor, Department of Electrical Engineering, Najafabad Branch, Islamic Azad University. Session 1: Introduction + The OSI Model and TCP/IP Protocol Suit
Evaluation: Ph.D. Students: Research Project and Seminar: 40% Midterm Exam: 15% 1394/1/22; Both closed and open Book. Final Exam: 45% M. Sc. Students: Homework: 10% Research Project and Seminar: 20% Midterm Exam: 20% 1394/1/22; Both closed and open Book. Final Exam: 50% 2
Contact Info: web sites: Official website: http://research.iaun.ac.ir/pd/faghani/ Personal website: http://faghani.ir/ Emails: faghani@iaun.ac.ir Farhad.faghani@gmail.com Phone : (+98) 31 4229 2221 3
Main Reference: TCP/IP Protocol Suite, Behrouz A. Forouzan, 4 th ed, 2010. 4
Table of Content: Introduction The OSI Model and the TCP/IP Protocol Suite Underlying Technologies Introduction to Network Layer IPv4 Addresses Delivery and Forwarding of IP Packets Internet Protocol Version 4 (IPv4) Address Resolution Protocol (ARP) Internet Control Message Protocol Version 4 (ICMPV4) Mobile IP Unicast Routing Protocols (RIP, OSPF, and BGP) Multicasting and Multicast Routing Protocols User Datagram Protocol (UDP) Transmission Control Protocol (TCP) 5
Introduction: 6 Advanced Data Communication Networks: Islamic Azad University, Najafabad Branch, Dr. Farhad Faghani
Internet today: 7
Standard Creation Commitees: International Standards Organization (ISO) International Telecommunications Union Telecommunication Standards Sector (ITU-T) American National Standards Institute (ANSI) Institute of Electrical and Electronics Engineers (IEEE) Electronic Industries Association (EIA) 8
Forums: Frame Relay Forum ATM Forum 9
Regulatory Agencies Federal Communications Commission (FCC) 10
INTERNET STANDARDS: An Internet draft is a working document (a work in progress) with no official status and a six-month lifetime. Upon recommendation from the Internet authorities, a draft may be published as a Request for Comment (RFC). Each RFC is edited, assigned a number, and made available to all interested parties. 11 Advanced Data Communication Networks: Islamic Azad University, Najafabad Branch, Dr. Farhad Faghani
Maturity of an RFC: 12
ISO is the organization. OSI is the model. 13 Advanced Data Communication Networks: Islamic Azad University, Najafabad Branch, Dr. Farhad Faghani
OSI Model: 14
OSI Layers: 15
Headers are added to the data at layers 6, 5, 4, 3, and 2. Trailers are usually added only at layer 2. 16 Advanced Data Communication Networks: Islamic Azad University, Najafabad Branch, Dr. Farhad Faghani
An exchange using the OSI model: 17
LAYERS IN THE OSI MODEL: 18 Advanced Data Communication Networks: Islamic Azad University, Najafabad Branch, Dr. Farhad Faghani
Physical Layer 19
Data Link Layer: 20
Node to Node Delivery: 21
Network Layer: 22
End-to-end delivery: 23
Transport Layer: 24
Reliable end-to-end delivery of a message: 25
Session Layer: 26
Presentation Layer: 27
Application Layer 28