Ethernet lans Chapter 4 Updated March 2008 BoDo Panos Business data Networks and Telecommunications. 6th edition Copyright 2007 Prentice-Hall May only be used by adopters of the book
Ethernet LANs Chapter 4 Updated March 2008 Panko’s Business Data Networks and Telecommunications, 6th edition Copyright 2007 Prentice-Hall May only be used by adopters of the book
Orientation Chapters 2 and 3 Looked at Standards Chapter 2: Layered standards(data link to application) Chapter 3: Physical layer standards Chapters 4-7 Deal With Single Networks Chapter 4: Ethernet LANS Chapter 4a deals with obsolete Token-Ring Networks Chapter 5: Wireless LaNs Chapters 6 and 7: WaNs Flow is from laNs to wans 4-2
4-2 Orientation • Chapters 2 and 3 Looked at Standards – Chapter 2: Layered standards (data link to application) – Chapter 3: Physical layer standards • Chapters 4-7 Deal With Single Networks – Chapter 4: Ethernet LANs • Chapter 4a deals with obsolete Token-Ring Networks – Chapter 5: Wireless LANs – Chapters 6 and 7: WANs – Flow is from LANs to WANs
Figure 4-1: A Short History of Ethernet standards · Ethernet The dominant wired Lan technology today Only"competitor"is wireless LANs(which actually are supplementary) The EEE 802 Committee LAn standards development is done primarily by the Institute for Electrical and Electronics Engineers(IEEE) lEEE created the 802 LAN Man Standards committee for Lan standards(the 802 Committee 4-3
4-3 Figure 4-1: A Short History of Ethernet Standards • Ethernet – The dominant wired LAN technology today – Only “competitor” is wireless LANs (which actually are supplementary) • The IEEE 802 Committee – LAN standards development is done primarily by the Institute for Electrical and Electronics Engineers (IEEE) – IEEE created the 802 LAN/MAN Standards Committee for LAN standards (the 802 Committee)
Figure 4-1: A Short History of Ethernet standards The 802 Committee creates working groups for specific types of standards 802. 1 for general standards 802.3 for ethernet standards The terms 802. 3 and ethernet are interchangeable 802 11 for wireless lan standards 802.16 for WiMax wireless metropolitan area network standards
4-4 Figure 4-1: A Short History of Ethernet Standards • The 802 Committee creates working groups for specific types of standards – 802.1 for general standards – 802.3 for Ethernet standards • The terms 802.3 and Ethernet are interchangeable – 802.11 for wireless LAN standards – 802.16 for WiMax wireless metropolitan area network standards
Figure 4-1: A Short History of Ethernet standards Ethernet standards are osi Standards Single networks, including LANS, are governed by physical and data link layer standards Layer 1 and Layer 2 standards are almost universally OSI standards Ethernet is no exception The IEEE makes 802.3 standards: Iso ratifies them In practice, when 802.3 finishes standards, vendors begin building compliant products 4-5
4-5 Figure 4-1: A Short History of Ethernet Standards • Ethernet Standards are OSI Standards – Single networks, including LANs, are governed by physical and data link layer standards – Layer 1 and Layer 2 standards are almost universally OSI standards – Ethernet is no exception – The IEEE makes 802.3 standards; ISO ratifies them – In practice, when 802.3 finishes standards, vendors begin building compliant products