NETWORK WORLD NEWSLETTER: JEFF CARUSO ON HIGH SPEED LANS 09/16/04 Today's focus: Strides made on standard for 10G over multimode
Dear [EMAIL PROTECTED], In this issue: * Progress on new effort for 10 Gigabit Ethernet over multimode ��fiber * Links related to High Speed LANs * 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=81125 _______________________________________________________________ CHECK OUT NW FUSION'S NEW WHITE PAPER LIBRARY NW Fusion's White Paper Library was recently re-launched with new features and improved capabilities! Sort NW Fusion's library of white papers by Date and Vendor, view white papers by TECHNCIAL CATEGORY, mouse over white paper descriptions and take advantage of our IMPROVED white paper search engine. CLICK HERE: http://www.fattail.com/redir/redirect.asp?CID=81153 _______________________________________________________________ Today's focus: Strides made on standard for 10G over multimode By Jeff Caruso Earlier this year I mentioned that the IEEE was beginning to look at a standard for 10 Gigabit Ethernet over FDDI-grade multimode fiber. That effort continues to advance. Now called the IEEE 802.3aq 10GBase-LRM Task Force, the group looking at creating a standard has had its project authorization request approved and has set forth its goals. The idea is that a lower-cost fiber option for 10 Gigabit is necessary for the technology to take root in enterprise companies. Plus, if more Gigabit Ethernet connections are used, and if the number of devices connecting to enterprise networks continues to increase, eventually you need 10 Gigabit to aggregate those connections. The task force wants to use the FDDI-grade fiber-optic lines that many companies already have installed. The group will define the physical layer specification that can make that happen, using the current MAC. The target distance to be supported is at least 220 meters on installed 500 MHz*km multimode fiber, and the group says it will "enable migration to smaller form factor pluggable modules." There seems to be a good deal of interest in the group's efforts. The task force says in its "5 Criteria" - an IEEE document to support a group's reason for being - that 156 vendor and user representatives attended the call-for-interest meeting late last year, 30 technical contributions were put forth in the group's January meeting, and 40 companies have said they would participate in the development of a standard. Contributions have been received from end users, industry experts and physical-layer, system and cabling vendors. Specific costs haven't been spelled out. However, the 5 Criteria document says the group believes it can get costs to the "3x-4x cost vs. 10x performance guidelines applied to comparable previous advanced Ethernet standards." In other words, equipment based on the standard might cost three or four times as much as equipment based on Gigabit Ethernet, but it would have 10 times the performance. RELATED EDITORIAL LINKS IEEE revisits 10 Gig over multimode Network World High Speed LANs Newsletter, 01/06/04 http://www.nwfusion.com/newsletters/lans/2004/0105lan1.html _______________________________________________________________ To contact: Jeff Caruso Jeff Caruso is managing editor of online news for Network World. He oversees daily online news posting and newsletter editing, and writes the NetFlash daily news summary, the High-Speed LANs newsletter and the Voices of Networking newsletter. Contact him 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=81124 _______________________________________________________________ ARCHIVE LINKS Archive of the High Speed LANs newsletter: http://www.nwfusion.com/newsletters/lans/index.html _______________________________________________________________ FEATURED READER RESOURCE ACCESS NW'S IN-DEPTH REPORT ON: BLADE SERVERS Available now is Network World's Technology Insider on: Blade Servers. Find out why early adopters of blade server technology say the benefits aren't science fiction, how blade servers differ by vendor, why blade servers are perfectly suited for today's data centers, review our extensive blade server buyer's guide and more. 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