Authorized Self-Study Guide Designing Cisco Network Service Architectures (ARCH), Second Edition

Acronyms and Abbreviations

This element identifies abbreviations, acronyms, and initialisms used in this book and in the internetworking industry.

Many of these acronyms and other terms are also described in the Cisco Internetworking Terms and Acronyms resource, available at http://www.cisco.com/en/US/docs/internetworking/terms_acronyms/ita.html.

Acronym	Expanded Term
1RU	one rack unit
2RU	two rack units
AAA	authentication, authorization, and accounting
ABR	Area Border Router
ACE	Application Control Engine
ACK	acknowledgment
ACL	access control list
ACS	access control server
AD	administrative distance
ADU	Aironet Desktop Utility
AES	Advanced Encryption Standard
AH	Authentication ...