THE WHATIS.COM WORD-OF-THE-DAY May 15, 2001 FDDI ______________ TODAY'S SPONSOR: AVPartner - Your Partner in Presentation Technology! Find name-brand LCD projectors and laptops at low prices. Buy or lease Proxima, InFocus, Sanyo, Sony, Epson and Plus products at bargain prices. Ask about turning your whiteboard into a digital workspace for under $600! http://sprinks-clicks.about.com/?ref=techtarget_whatis_software&bid=1864871&lnk=http://www.AVPartner.com/ _____________ QUIZ #3: STORAGE BASICS - How much do you know about the way your computer stores data? Take this week's quiz and find out! http://whatis.techtarget.com/definition/0,289893,sid9_gci551320,00.html _____________ TODAY'S WORD: FDDI See our the definition with hyperlinks at http://whatis.techtarget.com/definition/0,289893,sid9_gci213957,00.html FDDI (Fiber Distributed Data Interface) is a standard for data transmission on fiber optic lines in a local area network (LAN) that can extend in range up to 200 km (124 miles). The FDDI protocol is based on the token ring protocol. In addition to being large geographically, an FDDI local area network can support thousands of users. An FDDI network contains two token rings, one for possible backup in case the primary ring fails. The primary ring offers up to 100 Mbps capacity. If the secondary ring is not needed for backup, it can also carry data, extending capacity to 200 Mbps. The single ring can extend the maximum distance; a dual ring can extend 100 km (62 miles). FDDI is a product of American National Standards Committee X3-T9 and conforms to the Open Systems Interconnection (OSI) model of functional layering. It can be used to interconnect LANs using other protocols. FDDI-II is a version of FDDI that adds the capability to add circuit-switched service to the network so that voice signals can also be handled. Work is underway to connect FDDI networks to the developing Synchronous Optical Network (SONET). RELATED TERMS: fiber optic http://whatis.techtarget.com/definition/0,289893,sid9_gci212113,00.html token ring http://whatis.techtarget.com/definition/0,289893,sid9_gci213154,00.html circuit-switched http://whatis.techtarget.com/definition/0,289893,sid9_gci211787,00.html SONET http://whatis.techtarget.com/definition/0,289893,sid9_gci214223,00.html ____________________ SELECTED LINKS [1] Cisco provides an illustrated overview of FDDI. http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/fddi.htm [2] SearchNetworking.com provides links to more information about "Fiber Networks." http://searchnetworking.techtarget.com/bestWebLinks/0,289521,sid7_tax286423,00.html ____________________ TECHTARGET FEATURE Cisco Networking Academy Program: Computer Networking Essentials By: Debra Shinder This book is an extended product offering within the most successful networking print and online publication program in the industry. These products are endorsed and recommended by Cisco Systems for the Cisco Networking Academy Program. The Cisco Networking Academy Program prepares students to design, build, and maintain computer networks. http://www.digitalguru.com/dgstore/product.asp?isbn=1587130009%20&ac_id=76 __________________________ SUPPORT OUR SPONSOR! What do you like? Networks? Computer Games? Shareware? Get FREE info on the topics that interest you most. Postmaster Direct will find related news, information and special offers and deliver them directly to your e-mailbox, all at no charge! http://whatis.techtarget.com/postmasterDirect/1,289639,sid9,00.html _________________________ RECENT ADDITIONS [1] Table of Physical Units http://whatis.techtarget.com/definition/0,289893,sid9_gci551931,00.html [2] abfarad http://whatis.techtarget.com/definition/0,289893,sid9_gci551355,00.html [3] crumb http://whatis.techtarget.com/definition/0,289893,sid9_gci551033,00.html [4] FDDI http://whatis.techtarget.com/definition/0,289893,sid9_gci213957,00.html [5] VSAT http://whatis.techtarget.com/definition/0,289893,sid9_gci214155,00.html If you no longer wish to receive this newsletter simply reply to this message with "REMOVE" in the subject line. Or, visit http://WhatIs.techtarget.com/register and adjust your subscriptions accordingly. If you choose to unsubscribe using our automated processing, you must send the "REMOVE" request from the email account to which this newsletter was delivered. Please allow 24 hours for your "REMOVE" request to be processed.
