IP Addressing Guide - Cisco（思科IP寻址指南）.pdf

IP Addressing Guide Revision: H1CY11 The Purpose of This Guide The reader may require any of the following: • A general understanding of IP addressing and subnetting • General IP addressing guidance while redesigning an existing network • Guidance on how to add new services to an existing network • Assistance planning for the acquisition of a company that has a different This guide introduces you to the basics of IP addressing and prepares you IP address space to create an IP addressing plan for your network. • A plan for expansion after running out of IP address space This guide is a concise reference on IP addressing best practices, including: • An IP address migration path for growth • The basic concepts of IP addressing • An IP addressing plan that can be used in midsize networks as a tem- • The IP addressing plan used in the Cisco Smart Business Architecture plate for customer deployments (SBA) Foundation lab network Before reading this guide • The steps you should follow to create your own IP Addressing Plan • How to maintain your IP space as your network evolves