Internetworking Terms and Acronyms
The Internetworking Terms and Acronyms site hosted by Cisco Systems.

Start with the Introduction link, and work your way through the alphabet. This site will give you a feel for the concepts involved in Internetworking. At the bottom of the alphabetical list, click the Cisco Terms link to view a list of definitions for Cisco-specific acronyms and abbreviations.
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ita/index.htm