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Cisco Network Admission Control, Volume I: NAC Framework Architecture and Design by Paul Forbes, Jason Frazier, Lou Ronnau, Denise Helfrich

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Chapter 5NAC Layer 2 Operations

This chapter covers the following topics:

The first Network Admission Control (NAC) Framework deployment rule of thumb is to use the NAC-enabled network access device (NAD) closest to the endpoints to check compliance; this helps enforce a least-privilege principle. In many cases, NAC is implemented at the switch port working at Layer 2.

This chapter describes how NAC works when implemented using NAC-L2-802.1X. The chapter begins by describing the 802.1X technology ...

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