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“>This chapter covers the following subjects:Typical Features of OSI Layer 3IP Addressing FundamentalsNetwork Layer UtilitiesIP Routing and Routing ProtocolsThe OSI model assigns the functions of path selection and logical addressingto the OSI network layer (Layer 3). Path selection includes the process oflearning all the paths, or routes, in a network and then forwarding packetsbased on those paths or routes. Often the terms path selection androuting are used interchangeably. In most 
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