NETWORK WORLD NEWSLETTER: STEVE TAYLOR AND JOANIE WEXLER ON WIDE AREA NETWORKING 11/23/04 Today's focus: Citrix as a remote-access option
Dear [EMAIL PROTECTED], In this issue: * The ins and outs of Citrix * Links related to Wide Area Networking * Featured reader resource _______________________________________________________________ This newsletter is sponsored by SBC Gimme Shelter! Converged Services Spell Relief For Beleaguered Network Managers Switched IP networks are rapidly becoming the corporate communications architecture of choice. By converging voice, data and video onto IP telephony platforms and Virtual Private Networks, enterprises can supply bandwidth when and where end users need it, while significantly lowering administrative and equipment costs. Click here to download this Whitepaper now http://www.fattail.com/redir/redirect.asp?CID=88645 _______________________________________________________________ NW'S RESEARCH CENTER ON SPAM Go to NW's Research Center on spam and find our in-depth review of 16 anti-spam products, our spam calculator to determine how much spam is costing your enterprise each year, the latest spam news, advice on how to fight spam and more. For the latest on spam click here: http://www.fattail.com/redir/redirect.asp?CID=88681 _______________________________________________________________ Today's focus: Citrix as a remote-access option By Steve Taylor and Joanie Wexler We've written quite a bit about the challenges of supporting remote users. One piece of the remote picture we shouldn't neglect is the Citrix Systems thin-client Independent Computing Architecture. Citrix remains in use, often alongside Web-enabled applications, in many enterprises. Citrix ICA evolved to provide LAN-like connectivity to WAN-connected users. Users run a Citrix thin client and basically work in terminal application mode running so-called Citrix Published Applications. These can be any applications published to special Citrix MetaFrame Presentation Servers in corporate data centers. Citrix servers proxy the usually chatty applications developed for LANs. The servers and thin-client software exchange only user inputs, mouse movements, and GUI updates over the WAN. Because of this streamlining and use of Citrix compression technology, each Citrix Published Application, including print jobs, consumes a stream of just 10K to 25K bit/sec of WAN bandwidth, according to Russ Naples, Citrix vice president of product development. This is what keeps user response times LAN-like and, for some users, trumps the bursty Web experience. The architecture supports five client operating systems and returns a screen formatted appropriately to the device in use, be it a Windows CE handheld or a Mac OS-based laptop. The compression has tunings that help wireless devices minimize latency, Naples says. Citrix is reportedly looking into accommodating converged voice and data applications, as well. "That's clearly an important piece of improved access our customers will expect us to deliver," Naples says. The overarching Citrix MetaFrame Access Suite supports security policies that identify users, determine what device and connection type they are using and grant permissions based on these variables. For mobile/wireless users, the system can also provide access to a printer local to wherever they are. Meanwhile, if you are using Layer-7 traffic management and running multiple Citrix Published Applications, you can assign a unique performance-management policy to each Citrix application. You'll likely want to ensure each session per Published Application gets its required 10K to 25K bit/sec. Otherwise, if you assign an aggregate amount of bandwidth to each app, more and more concurrent sessions might be opened, but none might have sufficient bandwidth to perform adequately. CORRECTION: In our Nov. 9 newsletter, "Service bundles gain cellular access options," 1xRTT service usage should have been estimated at speeds of about 144K bit/sec, not 144M bit/sec. We regret the typographical error. RELATED EDITORIAL LINKS A deep-rooted legacy of access Network World, 11/15/04 http://www.nwfusion.com/ee/2004/111504citrix.html Buffalo charges Citrix GoToMyPC Network World, 11/08/04 http://www.nwfusion.com/net.worker/news/2004/110804netlead.html _______________________________________________________________ To contact: Steve Taylor and Joanie Wexler Steve Taylor is President of Distributed Networking Associates and Publisher/Editor-in-Chief of Webtorials.Com. For more detailed information on most of the topics discussed in this newsletter, connect to Webtorials.Com <http://www.webtorials.com/>, the first Web site dedicated exclusively to market studies and technology tutorials in the Broadband Packet areas of Frame Relay, ATM, and IP. He can be reached at <mailto:[EMAIL PROTECTED]> Joanie Wexler is an independent networking technology writer/editor in California's Silicon Valley who has spent most of her career analyzing trends and news in the computer networking industry. She welcomes your comments on the articles published in this newsletter, as well as your ideas for future article topics. Reach her at <mailto:[EMAIL PROTECTED]>. _______________________________________________________________ This newsletter is sponsored by SBC Gimme Shelter! Converged Services Spell Relief For Beleaguered Network Managers Switched IP networks are rapidly becoming the corporate communications architecture of choice. By converging voice, data and video onto IP telephony platforms and Virtual Private Networks, enterprises can supply bandwidth when and where end users need it, while significantly lowering administrative and equipment costs. Click here to download this Whitepaper now http://www.fattail.com/redir/redirect.asp?CID=88644 _______________________________________________________________ ARCHIVE LINKS Archive of the WAN newsletter: http://www.nwfusion.com/newsletters/frame/index.html _______________________________________________________________ FEATURED READER RESOURCE NW FUSION PARTNERS' SITES NOW AVAILABLE Network World Fusion Partners is a collaborative effort between Network World and sponsoring Partner companies. Each microsite contains best-of-breed information as well as custom content not found anywhere else, including a custom email newsletter and special offers. It is current, top-of-mind information that is readily accessible and bundled into one comprehensive package. 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