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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here -- Ignore unavailable to you. Want to Upgrade?

To: MikeM54321 who wrote (3541)	5/4/1999 4:42:00 PM
From: Kenneth E. Phillipps	Read Replies (1) \| Respond to of 12823

Mike, Frank & Thread - On the subject of ATM v IP, there is a good discussion of next generation routers in an article in Sounding Board Magazine at: soundingboardmag.com ...some carriers believe that wire-speed hardware, classifier engines and IP VPNs alone will not enable them to ensure VoIP quality. Although IDT is using Cisco Systems' 12000 Gigabit Switch Routers to expand its domestic U.S. network capacity tenfold, it simultaneously is installing Nortel ATM switches to connect those routers with ATM VCs. "We see ourselves going to IP over clear channels eventually, because ATM overhead is 30 percent when you put IP over it, and that's a lot of bandwidth to give away," Greenblatt says. "But for now, the move to ATM gives us QoS end to end." According to a March 23 report, "IVPN Service Backbones: The Operations Cost Angle," issued by consulting firm The Yankee Group (www.yankeegroup.com), the ATM-based approach of Newbridge Networks Corp. (www.newbridge.com), Siemens and 3Com Corp. (www.3com.com) is proving the lowest cost method to operate IP VPNs, compared with terabit routers and the Internet Engineering Task Force's (IETF's) (www.ietf.org) emerging multiprotocol label switching (MPLS).</> Ken