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To: gbh who wrote (8530)	12/14/1998 7:39:00 PM
From: pat mudge	Read Replies (1) \| Respond to of 18016

And yet another, this time for those who like graphs with their news. (I knew Erik wouldn't let me down.) news.fiberopticsonline.com ------------------------------------------------------------------------ NEWS AND ANALYSIS12/14/1998 ------------------------------------------------------------------------ IXC Lights Up New IP Backbone By: Erik Kreifeldt IXC Communications says it has activated the first coast-to-coast OC-48 (2.5 Gbps) Internet backbone network to carry both commercial and research community traffic. Dubbed Gemini2000, the Internet protocol (IP)-over-SONET network sports a 65 msec core-to-core response time, two hops for coast-to-coast connectivity, and will deliver 4 msec response time to user sites in bandwidth increments from DS-1 (1.5 Mbps) to OC-12 (622 Mbps). Gemini2000 proponents say the network services are available to all comers, differentiating the effort from R&D networks with acceptable use policies governing network applications. They also say the network represents the first coast-to-coast application of 2.5 Gbps IP bit rates. Gemini2000 breaks the tradition of mesh-based IP network designs with novel traffic engineering and by creating network hubs, positions IXC to leverage terabit router switching techniques, says Mike Vent, IXC's executive vice president of engineering and operations. A hierarchical architecture and tag switching ensures quality of service, proponents add (see Figure 1). Figure 1: Gemini2000's regional hierarchy improves quality of service, proponents say. IXC built the network using Cisco's 12,000 series routers hooked up to Nortel's OC-192 SONET gear. The carrier also partnered with AppliedTheory Communications Inc. to develop applications for high-bit-rate IP connections, such as meteorological modeling and telemedicine. IXC holds an investment stake in AppliedTheory. By directly connecting to SONET, the network can provision bandwidth more rapidly than traditional capacity deals available to Internet service providers, says AppliedTheory Chairman and CEO Richard Mandelbaum. He expects the network to accommodate petabit (1,000 Tbps) data rates in five years or so. Eight regions comprise Gemini2000, and each segment contains a central traffic aggregation point, or Core Site. The New York City, Washington, DC, and San Francisco Core Sites are carrying traffic. By the third quarter of 1999, Gemini2000 will turn up Core Sites in Atlanta, Austin, Chicago, Dallas/Ft. Worth, and Newark, DE. (see Figure 2). Figure 2: Core Sites and zones in the Gemini2000 network Gemini2000's first customer is NYSERNet, a nonprofit corporation founded in 1985 to provide Internet access and a regional network backbone to research institutions in New York state. The organization's NYSERNet2000 network, comprised of Cisco routers and Newbridge ATM switches, connects some 23 institutions using ATM-over-SONET transport. Gemini2000 plans to bring on NYSERNet with an OC-12 connection in the first quarter of 1999.

To: gbh who wrote (8530)	12/16/1998 7:45:00 PM
From: pat mudge	Respond to of 18016

gbh -- Not sure if it was you or someone else who brought up Cisco's recent win with MCI/WCOM, but I did get more clarity on NN's position there. Cisco won the edge and NN still supplies the core. There's been no change and I'm told the account executive has volunteered to talk to analysts who want more understanding of the contract. I've also been told the SBC contract is getting better and better. Investors will find this comforting; traders will probably yawn. Glad I'm long. Pat