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Cisco A Beginner’s Guide Fifth Edition by Anthony Velte, Toby Velte

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CHAPTER 7 Switches
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The three previous chapters discussed routers, which operate between networks. An internetwork is, by definition, a collection of local area networks connected by routers. In other words, a packet that has to traverse one or more routers has traveled across an internetwork. Eventually, that packet will arrive at the destination network—home of the destination IP address.
But what then? At that juncture, the message has ...

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