TAILIEUCHUNG - Lecture Network + Guide to Networks (5th edition) - Chapter 6: Network hardware

Chapter 6 introduce Network hardware. Chapter objectives: Identify the functions of LAN connectivity hardware; install, configure, and differentiate between network devices such as, NICs, hubs, bridges, switches, routers, and gateways; explain the advanced features of a switch and understand popular switching techniques, including VLAN management;. | NICs Network Interface Cards 9 7 2011 Objectives Identify the functions of LAN connectivity hardware Install configure and differentiate between network devices such as NICs hubs bridges switches routers and gateways Explain the advanced features of a switch and understand popular switching techniques including VLAN management Explain the purposes and properties of routing Describe common IPv4 and IPv6 routing protocols NICs Network Interface Cards Connectivity devices - Enable device transmission - Transceiver Transmits and receives data Physical layer and Data Link layer functions - Issue data signals - Assemble and disassemble data frames - Interpret physical addressing information - Determine right to transmit data 1 NICs cont d. Smart hardware - Perform prioritization link Ch 6a - Network management - Buffering - Traffic-filtering link Ch 6b Do not analyze information at layers 3 through 7 Importance - Common to every networking device network Types of NICs cont d. Bus - Circuit signaling pathway - Motherboard uses to transmit data to computer s components Memory processor hard disk NIC - Differ according to capacity Defined by data path width and clock speed - Data path size Parallel bits transmitting at any given time Proportional to attached device s speed 9 7 2011 Types of NICs Before ordering or installing NIC - Know device interface type Types of NICs - Access method Ethernet or Token Ring - Network transmission speed - Connector interfaces - Compatible motherboard or device type - Manufacturer Internal Bus Standards Expansion slots - Multiple electrical contacts on motherboard - Allows bus expansion Expansion card expansion board - Circuit board for additional devices - Inserts into expansion slot establishes electrical connection - Device connects to computer s main circuit or bus - Computer centrally controls device 2 Internal Bus Standards cont d. Multiple bus types - PCI bus most popular expansion board NIC PCI Peripheral Component Interconnect - .

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