Appendix B
OSI Model, TCP/IP Architecture, and Numeric Conversion
The Open Systems Interconnection (OSI) model is a mandatory topic in any internetworking book. The CCNP candidate should understand the OSI model and identify which OSI layers host the different networking protocols. The OSI model provides a framework for understanding internetworking. This appendix offers an overview and general understanding of the OSI reference model.
The Transmission Control Protocol/Internet Protocol (TCP/IP) architecture provides the practical implementation of a layered model. This appendix is an overview of the TCP/IP layers and how they map to the OSI model.
Also covered in this appendix is the numeric conversion of binary, decimal, and hexadecimal numbers. ...
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