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To: Frank A. Coluccio who wrote (1963)	8/24/1998 12:41:00 PM
From: Kenneth E. Phillipps	Read Replies (1) \| Respond to of 12823

Frank, Mike, Hiram & Thread - I believe that one major company who is using Gigabit Ethernet to beat up on their competition is Ford Motor Company. I understand they use it to design cars and trucks and the techology allows the design engineers extremely fast, simultaneous access to the model or part being designed. They have obtained an enormous advantage over their competitors by the use of GE. My reading on the subject indicates the main use of GE is to deliver fast ethernet and ethernet to the desktop. I also wonder whether the upcoming release of Netware 5.0, which is TCP/IP based, will be a big boost to GE. Ken

To: Frank A. Coluccio who wrote (1963)	8/24/1998 1:31:00 PM
From: MikeM54321	Respond to of 12823

"Maybe it is simply that they are forward looking, and they are planning to make a splash just over the horizon, as opposed to entering a market that is saturated today with commodity players." Frank, Thanks for your reply to my questions. Your statement above summarized my opinion of MRVC a lot better than I said in my very long post! Thanks, MikeM(From Florida)

To: Frank A. Coluccio who wrote (1963)	8/24/1998 2:59:00 PM
From: Frank A. Coluccio	Read Replies (1) \| Respond to of 12823

Rhythms NetConnections Launches 1st-Generation Service Selection for Telework ENGLEWOOD, Colo.--(BUSINESS WIRE)--Aug. 24, 1998-- First Data Carrier to Give Remote Workers Simultaneous Intranet/Internet Connectivity over DSL Rhythms NetConnections, the high-performance networking company, today announced general availability of simultaneous remote access to corporate LANS and the Internet, through Rhythms.Net. This capability, a first-generation service selection feature set, gives corporate network managers the freedom to offload remote access to the Internet to a public gateway, while consolidating connectivity for both LAN and Internet access over one DSL link. The company is the first data network provider to release this function over DSL, through integration of layer two/three network switching and its open systems implementation of Cisco Systems' carrier-grade routing. And through Rhythms addressing, network administrators control WAN access privileges to any IP-addressable site or device on a customized basis. Rhythms' network architecture concentrates IP traffic at the DSL multiplexers and passes IP traffic to its backbone routers, where policy-based routing and fast switching direct user traffic destined for corporate LANs, Internet Service Providers (ISPs) and individual enterprise applications. Unlike other solutions, Rhythms' network supports continuous and simultaneous remote user connection for both corporate LAN and Internet access. Both security levels and traffic choke points are handled at Rhythms' carrier-grade service centers. The net result of these service capabilities is that corporate managers can use Rhythm's network to direct remote users' Internet traffic directly to the ISP, rather than backhaul it through the corporate firewall. Rhythms.Net is available to all Rhythms LAN Interconnection and Power Internet end-users at no additional charge for network design, configuration or management. Traditional public carriers have been slow to offer simultaneous Internet and intranet access as a finished service, due to a lack of integration between high-speed local access and intelligent routing. While simultaneous access could be achieved using public frame relay services, the cost is prohibitive for both carriers and their end-users due to added equipment requirements and frame relay pricing. No comparable architecture involving layer three switching or policy-based routing has yet been launched by other CLECs, cable providers or network providers. Rhythms is installing the full switching fabric, network monitoring and control systems, and open systems routing in all of its DSL-enabled Metro Service Centers nationwide. Rhythms' primary network platform providers, Cisco Systems and Paradyne, provide the key switching and routing for Rhythms.Net. Rhythms' strict engineering controls, 24 x 7 performance monitoring and proactive capacity management ensure peak network service levels are maintained. Future enhancements will include integrated voice traffic management, DHCP addressing and caching. Standardized Service Level Agreement terms are provided for all installed networks, and money-back performance guarantees apply. As released August 1, 1998, current users also have access to web-based performance statistics and management reports on Rhythms.Net via Rhythms' Network NOW interface. Said Claudia Bacco, Senior xDSL Analyst with Telechoice, "Delivery this capability is certainly unique in the marketplace at this time. While many providers and manufacturers are pursuing the ability to do simultaneous high-speed connectivity for remote workers, Rhythms' service architecture subverts the 'single destination' limitation in most DSL CPE today." Rhythms NetConnections is an Englewood, Colorado-based business rapidly building a nationwide high performance network and currently has sales offices in San Diego, San Francisco, Los Angeles, Chicago, Boston and New York. It provides high performance data networking solutions for business customers by combining high-speed local access with capacity managed local and wide area networks. Rhythms sells directly to enterprise customers and distributes its capabilities through market leading network integrators and Internet Service Providers. Telecommunications services for Rhythms are provided by ACI, a wholly-owned subsidiary of Rhythms. For more information regarding Rhythms NetConnections, call 1-800-Rhythms or on the World Wide Web at www.Rhythms.Net. The statements contained in this release which are not historical facts may be deemed to contain forward-looking statements with respect to events, the occurrence of which involve risks and uncertainties, including, without limitation, demand and competition for the services and the products to be sold by Rhythms NetConnections, the continued availability of adequate financing to support its activities, the timing of rollouts in additional regions, the number of potential customers who could access its services, and other risks and uncertainties detailed in the Company's Securities and Exchange Commission filings. CONTACT: Market Ready, Wayzata PR for Rhythms NetConnections Jill Budzynski, 612/475-2835 Fax: 612/404-2302 jmb@marketready.com or Renee Maler, 925/828-9495 rmaler@aol.com

To: Frank A. Coluccio who wrote (1963)	8/26/1998 1:22:00 PM
From: Robert G. Harrell	Read Replies (1) \| Respond to of 12823

Hi Frank, Someone on the MRV Communications thread referenced this post for us. It is very interesting and informative. It strikes me that you or one of the other posters on this thread might be able to help us. MRV announced a new product which incorporates what they call dynamic DWDM. Here is the press release: nbase.com There is only one regular poster on the MRVC thread that understands the technology on any kind of sophisticated level and he is on a 5 week trip. We are wondering what the difference is between dynamic DWDM and regular DWDM. Is this a necessary ingredient of a totally optical switch? Is anyone else marketing a totally optical switch? Also, I've been under the impression that optical technology is one of the real core strengths of the MRVC founders and assume that they have had the capability to develop WDM products for a long time. I think their first WDM product is only 4 channels and they may have announced an 8 channel product. With other companies selling WDM products with way more channels, I'm wondering why MRV chose to introduce products with relatively few channels. Is it because 4 or 8 channels are all that are needed in the kinds of LAN/WAN products that they make and more channels would be expensive overkill? If any of you would like to come over to the MRVC thread and answer these questions and offer any opinions you might have about MRV Comm./nbase/xyplex products we would greatly appreciate it. Thanks in advance for any help you can render. Bob Harrell