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NETWORK STANDARD

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Chapter 3.3

Chapter 3.3

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    NETWORK STANDARD NETWORK STANDARD Presentation Transcript

    • CHAPTER 3: COMPUTERNETWORKS ANDCOMMUNICATIONS
    • At the end of the lesson, student shouldbe able to:
    • Introduction to Network Standards Network architectures are defined by exact and detailed specification regarding the physical layout, cabling and methods used to access and maintain communications in and between network media. The Institute of Electrical and Electronic Engineer (IEEE), is one international organization responsible for developing and providing networking technology specification for worldwide usage. We call these networking technology specification as network standards.
    • Common Network Standards Network communication use a  The well known standards variety of standards to adopted by the IEEE are the ensure that data travels 802 standards. These physical correctly to its destination. cabling and specify the way data is transmitted. Network standards define guideline that specify the way  The ones we will get to know computers access the medium here are: to which they are attached. i. 802.3 ii. 802.7 The guideline also describe iii. 802.8 the type of medium used, the iv. 802.11 speeds used on different type of physical cable or wireless technology used.
    • A) 802. 3 Ethernet LAN It is the standard for an Ethernet LAN. In 802.3, Ethernet refers to the physical cabling, while the way data is transmitted through the cable is called Carrier Sense Multiple Access/Collision Detection (CSMA/CD). This method of transmission requires that only one device on the network can be transmitted at a time. If another device can sense that a transmission is already in the cable, it will have to wait.
    • B) 802.7 Broadband LAN It is the standard specification for a Broadband LAN. This 802.7 standard provides specifications for the design, installation and testing needed for broadband transmission. Broadband transmission allow simultaneous multiple transmission or signal using different communications channels at the same time.
    • C) 802.8 Fibre-Optic LAN and MAN Specification for Fibre- Optic LAN and MAN are given under the 802.8 standard. This standard gives the recommendation for the configuration and testing of fibre-optic Local Area Network and Metropolitan Area Networks
    • D) 802.11 Wireless LAN This standard defines communication between a wireless computer or client and an access point or between two wireless computers or clients. The 802.11 standard uses the 2.4GHz frequency band to transmit data up to 2Mbps.