Advanced Data Communication Networks

Session 1: Introduction + The OSI Model and TCP/IP Protocol Suit

Advanced Data Communication Networks

Dr. Farhad Faghani Assistant Professor, Department of Electrical Engineering, Najafabad Branch, Islamic Azad University.

Evaluation:

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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%

Contact Info:

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web sites: Official website: http://research.iaun.ac.ir/pd/faghani/ Personal website: http://faghani.ir/

Emails: [email protected] [email protected]

Phone : (+98) 31 4229 2221

Main Reference:

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TCP/IP Protocol Suite, Behrouz A. Forouzan, 4th ed, 2010.

Table of Content:

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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)

Introduction:

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Internet today:

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Standard Creation Commitees:

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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)

Forums:

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Frame Relay Forum ATM Forum

Regulatory Agencies

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Federal Communications Commission (FCC)

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.

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Maturity of an RFC:

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ISO is the organization. OSI is the model.

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OSI Model:

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OSI Layers:

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Headers are added to the data at layers 6, 5, 4, 3, and 2. Trailer s are usually added only at layer 2.

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An exchange using the OSI model:

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LAYERS IN THE OSI MODEL:

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Physical Layer

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Data Link Layer:

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Node to Node Delivery:

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Network Layer:

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End-to-end delivery:

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Transport Layer:

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Reliable end-to-end delivery of a message:

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Session Layer:

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Presentation Layer:

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Application Layer

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