Ethernet and PoS is quite different than carrier class ATM - you should know this. Try not to confuse the issues. Very sloppy Pat.
You give me far too much credit. I would never confuse the issues intentionally. I have a hard enough time figuring them out as it is.
This is a revolutionary step in the WAN networking industry. This the THE FIRST TIME something like this has ever been done. What Ascend has done here is to integrate Digital Cross Connect and SONET/SDH Add-drop multiplexers into an ATM switch.
I thought you were emphasizing the fact DWDM went straight into the switch, bypassing the SONET layer, not the fact it was with ATM.
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The project is the culmination of an interface development program for Cambrian, said Solomon Wong, Cambrian's assistant vice president of marketing. "We started developing products with the capability of developing interfaces to accommodate other technologies," he said. The interface will support direct connections with other protocols, but gigabit Ethernet will provide new alternatives for carriers and end-users, Wong added. "This moves [gigabit Ethernet] from just enterprise, single-building solutions to campus or [metropolitan area network] applications," he said. . . .<<<<
And further on:
"We've been looking at open interfaces using standard OC-48 and Sonet," said Denny Bilter, Ciena's marketing director. "This is a culmination of what we've been promoting--plugging different types of equipment [into the WDM system] rather than having a proprietary system. There will be a host of other vendors going straight to the glass rather than through a Sonet multiplexer."
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Since the 36170 is an ATM switch and since it interfaces with the Cambrian DWDM mentioned above, is it wrong to conclude it works with ATM?
Here's another press release indicating Cambrian's OPTera works over ATM:
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Cambrian Systems Wins Data Communications Magazine's 'Top 50 Hot Products' Award for OPTera(TM) DWDM Multiplexor.
Cambrian, the First Company to Launch Survivable Ring, DWDM Applications For MAN and Interoffice Networks, Demonstrates Distributed ATM at COMNET in Washington, January 26-29
WASHINGTON, Jan. 26 /PR Newswire/ -- Cambrian Systems Corporation, a provider of dense wavelength division multiplexing (DWDM) solutions for the metropolitan area network (MAN) and interoffice applications announced that its OPTera(TM) 80 product has been honored by Data Communications as one of the ''Top 50 Hot Products'' of the year.
The magazine, which annually recognizes the industry's leading new products, has hailed OPTera as ''the first wavelength division multiplexor that can be used to build redundant rings,'' allowing network managers to link multiple sites while assuring the integrity of data transmissions -- even in the event of fiber network or mux failures.
Cambrian Systems is participating at the 1998 COMNET show in Washington, D.C., in the Newbridge Networks exhibit (Booth #570). The media and other interested parties are encouraged to visit the Newbridge booth for a Distributed ATM demonstration and to discuss OPTera
''With increasing competition and bandwidth demand in local networks, carriers and large customers seek solutions that can both increase fiber capacity and create a scalable, economical path to new service deployment,'' said Don Smith, President and CEO of Cambrian Systems. ''This Data Communications magazine award is an excellent example of the excitement OPTera is generating in the marketplace.''
OPTera enables new business applications in short haul markets, delivering a ring-based DWDM solution that meets the demand for greater connectivity, enhanced service delivery, high reliability and network flexibility at a time when service and market mix are difficult to predict.
The use of OPTera and Distributed ATM allows carriers to deliver new services that generate increased revenues while reducing capital and operating costs. The scalability of OPTera enables rapid service deployment, a key competitive advantage for the carriers. OPTera delivers 32 wavelengths, each providing up to 2.5 Gbit/s of bandwidth for a total capacity that is scalable to 80 Gbit/s. Each wavelength is individually protected and managed, protocol and bit rate independent, and supports OC3, OC12, OC48, 100BT or native Gigabit Ethernet, etc.
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A Cambrian press release from Sept., 1997:
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Siemens and Newbridge Introduce
ATM-Based Distributed Service
Delivery for Metropolitan Networks
KANATA, Canada and MUNICH, Germany, September 29, 1997 -- Siemens and Newbridge today announced their asynchronous transfer mode (ATM)-based Distributed Service Delivery program which provides unique networking solutions for metropolitan area network applications. This technology evolution enables the cost effective delivery of services such as frame relay, private line, cell relay and Internet Protocol (IP) using a scalable and flexible common network infrastructure for multiple services, with cost saving opportunities that encompass capital equipment, transmission facilities and ongoing operational expenses.
ATM-based Distributed Service Delivery, developed jointly with Newbridger Affiliated Cambrian Systems Corporation, enables carriers to eliminate SONET multiplexers for transport, while maintaining the reliability and availability of centralized network resources to take advantage of the full attributes of ATM in a metropolitan area network at much lower costs. The first deployment of this capability within the Siemens / Newbridge MainStreetXpress(tm) product line will be on the industry-leading MainStreetXpress 36170 Multiservices Switch.
"Carriers need a migration strategy that cost effectively addresses increasing demand for multiple services at the edge of the network while simplifying overall network deployment," states Terence H. Matthews, Chairman and Chief Executive Officer, Newbridge Networks Corporation.
"Simplification of the network will result in, among other benefits, in grater accessibility of the internet. ATM-based Distributed Service Delivery is a major advancement in the continuous evolution of the Siemens / Newbridge MainStreetXpress vision of ATM as the core network architecture."
"Our joint development combines the leading ATM capabilities of the MainStreetXpress product family and the fundamental transport values of networking solutions based on dense wavelength division multiplexing (DWDM)," said Don Smith, President and Chief Executive Officer, Cambrian Systems. "It capitalizes on the scalability, flexibility, and survivability of Cambrian's Optera(tm) DWDM technology."
The Public Communication Networks Group of Siemens AG (Munich, Germany) and Newbridge Networks (Kanata, Canada), two of the world leaders in ATM, formed a strategic networking alliance in 1996 to provide carriers worldwide with the most comprehensive and advanced ATM solution set. With this agreement, the two companies have unified their ATM product lines under the MainStreetXpress brand and assembled the industry's most extensive ATM research and development operation -- more than 1,700 engineers in five countries. In North America, Siemens Public Communication Networks Group is represented by Siemens Stromberg-Carlson in Boca Raton, Florida.
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I don't care to argue about who was first --- your press release says June 24, 1998 and Cambrian's says September 29, 1997 --- but I will maintain NN/Cambrian has a DWDM system interfacing with ATM.
Regards,
Pat
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