9781423902454_PPT_ch06 - Network Guide to Networks 5th...

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Network+ Guide to Networks 5 th Edition Chapter 6 Network Hardware
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Network+ Guide to Networks, 5 th Edition 2 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
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Network+ Guide to Networks, 5 th Edition 3 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
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Network+ Guide to Networks, 5 th Edition 4 NICs (cont’d.) Smart hardware Perform prioritization Network management Buffering Traffic-filtering Do not analyze information Added by Layers 3 through 7 OSI model protocols Importance Common to every networking device, network
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Network+ Guide to Networks, 5 th Edition 5 Types of NICs Before ordering or installing NIC Know device interface type NIC dependencies Access method Network transmission speed Connector interfaces Compatible motherboard or device type Manufacturer
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Network+ Guide to Networks, 5 th Edition 6 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
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Network+ Guide to Networks, 5 th Edition 7 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
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Network+ Guide to Networks, 5 th Edition 8 Internal Bus Standards (cont’d.) Multiple bus types PCI bus: most popular expansion board NIC PCI (Peripheral Component Interconnect) 32- or 64-bit bus Clock speeds rated at 33-, 66- or 133-MHz Maximum data transfer rate: 1 Gbps Introduced by Intel (1992) Latest official version: 3.0 (2004)
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Network+ Guide to Networks, 5 th Edition 9 ISA (Industry Standard Architecture) Original PC bus type (early 1980s) Support for 8-bit and 16-bit data path, 4.77-MHz clock PCI bus characteristics Shorter connector length, faster data transmission Compared to previous bus types (ISA) PCs and Macintosh compatible Figure 6-1 PCI NIC
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Network+ Guide to Networks, 5 th Edition 10 PCIe (PCI Express)
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