To: Dave B who wrote (405 ) 6/6/2002 11:11:54 AM From: Jibacoa Respond to of 1011 Some excerpts from an article by James Cope in New World: "New products, services go beyond BGP to offer improved Internet routing." By James Cope Network World, 05/27/02nwfusion.com There's no place like multihome. The first step toward route nirvana is multihoming, or purchasing Internet connections from more than one vendor. For example, UAL Loyalty Services, a unit of United Airlines in Schaumburg, Ill., is now connecting two data centers -- a primary and a back-up -- through multihomed services provided by Internap Network Services. Igor Rafalovsky, director of networking and security for UAL, says two DS-3 links, one for each UAL data center, connect to two Internap junction points that in turn connect to multiple backbone providers. Rafalovsky says that approach provides an elegant disaster-recovery scheme while minimizing the number of router hops users around the world have to take to tap into content on the UAL servers. Gartner analyst Ted Chamberlin says intelligent routing could find a home as a service than as something hardwired into corporations. Examples are Internap Network Services, Sockeye Networks and international service provider Equant, which now offers intelligent routing across multiple ISPs as a service. Internap and Sockeye employ proprietary intelligent routing technologies, while Equant uses netVmg's system. McAfee.com in Sunnyvale, Calif., is an Internap customer. The antivirus companyÕs CIO, Doug Cavit, says having one service provider that connects to a raft of the backbone providers mitigates risks of network outage and slowdowns. "Users come from all directions to get antivirus updates," Cavit says, "just because Sprint is having a bad day doesn't mean McAfee is having a bad day." Internap uses what product manager Gene Lomas describes as "an active probing technique that gathers ISP performance data based on customer traffic and then optimizes performance-based thresholds specified in the customer service-level agreement [SLA]." In addition to circumventing a capital outlay, another benefit of using these services is they offer one SLA. Internap even provides an online portal detailing performance of the multihomed service and comparing that to the performance of the individual ISPs.