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Computer and Communication Networks by Nader F. Mir

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Chapter 2. Foundation of Networking Protocols

Users and networks are connected together by certain rules called network communication protocols. The Internet Protocol (IP), for example, is responsible for using prevailing rules to establish paths for packets. Communication protocols are the intelligence behind the driving force of packets and are tools by which a network designer can easily expand the capability of networks. One growth aspect of computer networking is clearly attributed to the ability to conveniently add new features to networks. New features can be added by connecting more hardware devices, thereby expanding networks. New features can also be added on top of existing hardware, allowing the network features to expand. The second ...

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