tailieunhanh - Lecture Network + Guide to Networks (5th edition) - Chapter 2: Networking standards and the OSI model

Chapter 2 introduce Networking standards and the OSI model. This chapter objectives: Identify organizations that set standards for networking, describe the purpose of the OSI model and each of its layers, explain specific functions belonging to each OSI model layer,. | COURSE TECHNOLOGY 1 CENGAGE Learning Networks- Guide to Networks 5th Edition Chapter 2 Networking Standards and the OS Model Objectives cont d. Understand how two network nodes communicate through the OSI model Discuss the structure and purpose of data packets and frames Describe the two types of addressing covered by the OSI model 9 7 2011 Objectives Identify organizations that set standards for networking Describe the purpose of the OSI model and each of its layers Explain specific functions belonging to each OSI model layer Networking Standards Organizations standard - Documented agreement - Technical specifications precise criteria - Stipulates design or performance of particular product or service Standards are essential in the networking world - Wide variety of hardware and software Ensures network design compatibility Standards define minimum acceptable performance - Not ideal performance 1 Networking Standards Organizations cont d. Many different organizations oversee computer industry standards - Organizations may overlap responsibilities Example ANSI and IEEE set wireless standards Network professional s responsibility - Be familiar with groups setting networking standards - Understand critical aspects of standards required by own networks EIA and TIA EIA Electronic Industries Alliance - Trade organization Representatives from United States electronics manufacturing firms - Sets standards for its members - Helps write ANSI standards - Lobbies for favorable computer and electronics industries legislation 9 7 2011 ANSI ANSI American National Standards Institute - 1000 representatives from industry and government - Determines standards for electronics industry and other fields Requests voluntarily compliance with standards Obtaining ANSI approval requires rigorous testing ANSI standards documents available online EIA and TIA cont d. TIA Telecommunications Industry Association - Formed in 1988 EIA subgroup merged with former United States Telecommunications .