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Troubleshooting Cisco Nexus Switches and NX-OS, First Edition by Richard Furr, Brad Edgeworth, Vinit Jain

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Chapter 1

Introduction to Nexus Operating System (NX-OS)

This chapter covers the following topics:

At the time of its release in 2008, the Nexus operating system (NX-OS) and the Nexus 7000 platform provided a substantial leap forward in terms of resiliency, extensibility, virtualization, and system architecture compared to other switching products of the time. Wasteful excess capacity in bare metal server resources had already given way to the efficiency of virtual machines and now that wave was beginning to wash over to the network as well. Networks were evolving from traditional 3-Tier designs (access layer, distribution layer, core layer) ...

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