NETWORK WORLD NEWSLETTER: MICHAEL COONEY ON TECHNOLOGY UPDATE 09/13/04 Today's focus: As compression technologies broaden, savings grow
Dear [EMAIL PROTECTED], In this issue: * A look at the evolving data compression market * Links related to Technology Update * 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=81084 _______________________________________________________________ Weekly Webcast Newsletter The weekly Webcast Newsletter brings you information on webcasts available on NW Fusion - your 24/7 source for the latest solutions and strategies, complete with links, resources, and the personal answers you need. Covering vital topics like security, applications, wireless, and more, our webcasts are highly focused, single-topic briefings from experts in technology. Sign up today! http://www.fattail.com/redir/redirect.asp?CID=80995 _______________________________________________________________ Today's focus: As compression technologies broaden, savings grow By Michael Cooney Compression devices have been around for years, but in their latest incarnations they use more than just compression to pack extra data onto fixed-size WAN links. At least that's the conclusion of our Special Focus story this week which takes a look at the evolving data compression market. Our author ( <mailto:[EMAIL PROTECTED]> ) says vendors come at compression from different angles. Some, like Expand, started out doing traditional compression - replacing patterns with smaller patterns so less traffic crosses the link. Others, like Orbital Data, use the fact that transfer control protocol (TCP) throttles back traffic when faced with delay, then builds it back up to speed very slowly - too slowly - when the perceived congestion clears. Others like Riverbed look at applications themselves and spoof predictable back and forth locally in the appliance rather than have the full conversation cross the WAN. Others shape traffic to give higher priority to key applications that are optimum WAN speeds. And still others use more than one technique and claim effective throughput improvements of 90% or more depending on the type of data. Since the different vendors use different algorithms and technologies, figuring out the impact of any given vendors' gear is key. So the type of compression gear that will work best is unpredictable. So he recommends something that not many customers have done to date: try out boxes that use different technologies to find out which one make the most significant improvements for a particular network. Our story looks at a number of user case scenarios and the savings many of these folks are enjoying. For more see: <http://www.nwfusion.com/news/2004/091304specialfocus.html> RELATED EDITORIAL LINKS ITWorx device puts the squeeze on WAN traffic Network World, 02/17/03 http://www.nwfusion.com/news/2003/0217itworx.html Expand offers WAN compression options Network World, 08/25/03 http://www.nwfusion.com/news/2003/0825expand.html Data compression makes a comeback Network World Network Optimization Newsletter, 04/10/03 http://www.nwfusion.com/newsletters/accel/2003/0407acc2.html _______________________________________________________________ To contact: Michael Cooney Michael Cooney is an Associate News Editor. Aside from his news responsibilities, Cooney handles the Infrastructure and Enterprise Application sections of Network World. Cooney has been writing for Network World since 1992. He can be reached 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=81083 _______________________________________________________________ ARCHIVE LINKS Technology Update archive: http://www.nwfusion.com/news/tech/index.html _______________________________________________________________ Why Remote Offices and Franchises Succumb to Residential Broadband Ploys If it sounds too good to be true, then it probably is. When "satellite" offices chart their own course, chaos erupts. From performance to multiple fixed IP addresses to customer support, know what to ask before signing on the dotted line. Watch now. http://www.fattail.com/redir/redirect.asp?CID=80996 _______________________________________________________________ FEATURED READER RESOURCE NETWORK WORLD SPECIAL REPORTS NOW AVAILABLE Focused reports on compelling industry topics, Network World Special Reports are available online at Network World Fusion. Network World Special Reports on IP Telephony Security, the State of Wireless LANs, trends in the networked world and more are currently available. Download any or all of our Special Reports at: <http://www.nwfusion.com/vendorview/specialreports.html> _______________________________________________________________ May We Send You a Free Print Subscription? You've got the technology snapshot of your choice delivered at your fingertips each day. Now, extend your knowledge by receiving 51 FREE issues to our print publication. 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