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Technology Stocks : Newbridge Networks -- Ignore unavailable to you. Want to Upgrade?

To: Doug who wrote (15106)	11/25/1999 12:53:00 PM
From: Tunica Albuginea	Read Replies (3) \| Respond to of 18016

Doug,Re: Q: What will the network of the future look like? Q: What will the network of the future look like? A: There will be copper and there will be fiber, there will be fixed radio and mobile and satellite, and each one will fill its own niche. On top of these there will be a variety of protocols. No one size fits all. There will be a lot of complexity, and your machines will attach to whatever is out there. You will see the emergence of things like bandwidth-on-demand, where you can share a pipe and get the bandwidth you need. But Internet Protocol [ the software lingua franca of the Net ] isn't going to solve every problem. Not all of this stuff is going to be handled by a single goddamn Internet Protocol network. quantumbridge.com Business Week Online November 22, 1999 Issue No, Virginia, the Net Is Not Going to Make Everything Simple Arno Penzias sees a multiplicity of e-devices in which 'no one size fits all' After 36 years at Bell Laboratories, including three years as director of the legendary research center, Nobel laureate Arno A. Penzias has retired in California. There, he serves as an adviser and investor with blue-blood venture capitalist firm New Enterprise Associates, offering his insights into telecommunications and other technologies. Dressed in a red sweatsuit in his San Francisco home, Penzias shared some of those insights with BUSINESS WEEK's Andy Reinhardt, while cargo ships plied the bay outside his picture windows. Q: Why did you leave Bell Labs? A: I had changed everybody's job except mine. So I decided to change, and right at that point, I began to see all these little companies doing interesting things out here. The work we did at Bell Labs had set the stage for all this wonderful stuff. So I came out here, initially with Lucent (LU), and started working with small companies. Now I'm on my own and working with New Enterprise Associates. Q: What's your vision of how the communications system is being transformed today? A: There is going to be intelligence everywhere in the network, but there will be considerably more control at the edge than there is now. Q: What is the difference between intelligence and control? A: Intelligence is what allows a function to be carried out. Control is where the choice is made to use the function. There are big religious arguments about this. But the trend is undeniable. It's like the Internet--where users have control--compared to the old phone system, which was completely centralized. This is a growing theme throughout our whole society, and not just in the communications sector. Q: Tell me more about decentralization. A: Back in the industrial age, the image of progress was Pittsburgh, with its huge stone chimneys belching smoke. Now it's small offices and home offices. People can carry their laptops everywhere, and those are their offices. The poster child of American prosperity today is somebody with a laptop getting on an airplane. For a telecom company like Lucent or Bell South (BLS), what that means is that their job is moving from the central telephone office to the customer premises. They're in the best position to take care of networking stuff in the home anyway. After all, they make house calls; they're the people who come and make your phone work. Maintaining things like home networks will become the locus of tomorrow's communications companies. If the local telephone companies ever become well-managed, they could be really dangerous [laughs]. Q: What will the network of the future look like? A: There will be copper and there will be fiber, there will be fixed radio and mobile and satellite, and each one will fill its own niche. On top of these there will be a variety of protocols. No one size fits all. There will be a lot of complexity, and your machines will attach to whatever is out there. You will see the emergence of things like bandwidth-on-demand, where you can share a pipe and get the bandwidth you need. But Internet Protocol [the software lingua franca of the Net] isn't going to solve every problem. Not all of this stuff is going to be handled by a single goddamn Internet Protocol network. Q: Who said it would be? A: Well, John Chambers [CEO of Cisco Systems (CSCO)] says the telephone is a dinosaur. He's a great man, but his mentality is that you should get rid of your phone and use your computer instead. Give me a break. The telephone is convenient, it works, it goes in your pocket. The mistake he's making is to think that the world is going to be a neater place, that Internet Protocol will do everything. I think it'll be quite the opposite. Things are getting more diverse. Q: Can you give me some examples of that? A: You are going to see other protocols for things like channelized data, where you want your own pipe or you need more security. And you are going to see a multiplicity of devices, not a blurring. You don't want to watch video on your cell phone. Within five years, every new car in the world will have a satellite antenna that lets it receive 500 radio stations and six to eight hours of storage for saving programs. And think what your life will be like when a TiVo box [a digital video recorder] will be able to store 3,000 hours of video instead of 30. All of these different devices will use various kinds of networking technology. Q: So what is the hottest area you are looking at now? A: I'd say metropolitan area networking. There are lots of companies making gigabit Ethernet equipment, and on the other side, outfits like Global Crossing (GBLX) and Qwest (QWST) that have huge data pipes. But people don't understand that these two worlds don't connect very well today. It's the part of the python where the pig is stuck. So I'm looking at a portfolio of companies that are taking a fresh look at how to weave together these two worlds. Companies like Mayan Networks, LuxN, Astral Point, and Quantum Bridge. They're throwing electronics at the problem, collapsing everything together to improve the connection between local area networks and the backbone. Q: What's the biggest trend you see overall in the computer business? A: The move from products to services. The only way people are going to be able to make money is on the service side. The margins in the PC business are gone; there's no value in stuffing boards. Even Michael Dell could finally work himself out of a job. He makes only $200 off a computer that costs its buyer $20,000 in service and support over the life of the machine. He has to find a way to grab the other 99% of the value of each machine his company sells. You have to keep reinventing yourself. Q: Are there any other technical trends people aren't aware of yet? A: There is tremendous stuff going on with electronic displays. Right now, display panels cost around $1,000. But people are figuring out how to make them as thin and flexible as a plastic vegetable bag. Imagine what that will mean. You will be able to hang them on your walls just like posters. Displays will be so cheap that packages will have their own displays. Q: What's the biggest difference that you've noticed between the East and West Coast high tech businesses? A: There is a tremendous amount of diversity here. But probably the most important difference is in the work style. People out here are less worried about failure than they are back East. Even the venture capitalists are different: They use the same words, but they tend to be more conservative in the East. I saw that when I came out to learn about startups for Lucent. When you are farther away, it's easier to deny what's happening here. But there is a tremendous amount going on. Message #15106 from Doug at Nov 25 1999 12:29PM fumble: Carrier telecommunication is faced with an electronic bottleneck which is defintely going to be replaced by light and Optelectronics. I appreciate you cannot replace the existing protocol zoo. However the bandwidth of usable Optic frequency is 75 thousand gigahertz. This bandwidth can be used to accomodate the zoo. Using MPLS,IP and fibre channel switching it is feasible to eliminate ATM completely. I strongly believe that LU and NT are working towards that end and have slowed down R&D on electronic switches. Are you aware of what development work these Companies are doing on next generation Silicon switches. Thanks.

To: Doug who wrote (15106)	11/25/1999 1:46:00 PM
From: Tunica Albuginea	Read Replies (2) \| Respond to of 18016

Doug: Part I: " The future of ATMs and NN. Based on above article, $70 - 80 or 1 share of CSCO / 1 share of NN, seems reasonable, :-) Happy Thanksgiving, TA ==================================== ÿÿÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿÿÿÿ " The whole design of the Internet was ?IP over anything?-- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ IP over frame relay, IP over ATM, etc. Today, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ however, the reverse is not true. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ What we will see in the future is IP evolution ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ characterized by the merging of ATM with IP. This ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ new mode combines the best attributes of IP and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM. It will not look like the IP we see today; the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ packet structure will be different, as will the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ overhead structure. The merging of ATM and IP will ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ mirror what is presently happening in the transport ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ layer, where DWDM and SONET are merging. " ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Marty Kaplan, chief technology officer, Sprint --------------------------------------------------------------------------------------------------- telecoms-mag.com ATM Systems: What?s ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Next? ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Industry Insight ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM is now a mature technology that has taken hold in service ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ provider backbones. Have we seen all its potential? Editor-in-Chief ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Sue O?Keefe asked several service providers, analysts and vendors ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ about what the future holds for ATM. Here?s what they had to say:ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Rick Malone, analyst, Vertical Systems ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ------------------------ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ With the advent of ?IP everywhere,? some in the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ industry have declared ATM technology pass?. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Despite these pronouncements, ATM continues to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ rapidly penetrate key segments of network ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ infrastructures. Since 1992, more than $9 billion has ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ been spent on ATM equipment worldwide. In 1999 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ alone, more than $4 billion will be spent on ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ core switches, edge switches, campus switches and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ access devices. The technology?s enduring appeal ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ can be attributed as much to frenzied network ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ build-out momentum as to its roster of benefits, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ which include standards-based technology, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ multimedia applications support, scalability to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ multigigabit capacities, and QoS on a ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ per-application basis. In short, ATM has been ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ accepted as a proven technology for managing ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ bandwidth. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Public ATM services are just beginning to gain ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ momentum, despite generating 15 percent of the total ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM market revenue. With port growth of more than ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 80 percent this year, ATM in the United States is ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ emerging as the preferred access service at speeds ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ above T1. The hottest area this year is ATM IMA--a ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ fractional T3 service--now offered by all the leading ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM providers. The need to aggregate frame relay ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ traffic into central sites at T3 rates using frame ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ relay/ATM service interworking interfaces is also ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ driving ATM service growth. The ATM services ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ market will top $1 billion for the first time this year ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ and is projected to increase at a faster growth rate ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ than ATM equipment revenue through 2002. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ The penetration of ATM equipment in the service ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ provider environment has been primarily as a core ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ technology to support subtending frame relay and IP ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ networks. We expect further penetration in the core ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ and edge as providers adopt MPLS to unite their ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ multiservice environments and implement dedicated ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ VPNs.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ More than $300 million of ATM access devices will ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ be sold this year to enterprises and service providers ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ for connecting to ATM-based core switches. IMA, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ service interworking, transparent LAN service and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ voice/data convergence are the applications driving ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the growth of this segment. ATM has also been ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ implemented in the leading DSLAMs to manage ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ traffic from multiple subscribers. Now, some service ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ providers are planning to support ATM to the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ subscriber?s modem, making it possible for a user to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ utilize the ATM signalling stacks that are already ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ built into Windows 98 and NT. Wide deployment of ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ xDSL could help extend ATM technology to sub T1 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ speeds at the network?s edge.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 8888888888888888 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿ Joe Skorupa, director of switching and routing, RHK ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ---------------------------- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ What happened to ATM? Just a few years ago, ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ was crowned the ruler of all it surveyed. Now, many ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ people seem ready to relegate ATM to the dustbin of ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ history--an interesting curiosity, but ultimately of ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ little importance. However, if you look closer, the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ corpse seems pretty lively.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM?s ability to guarantee the QoS of multiple ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ streams across a low-bandwidth link is driving ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM?s adoption for xDSL networks, particularly for ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ G.Lite. If carrier rollout plans come together, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ millions of ATM access lines will be installed in the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ United States alone. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ILECs face scarcity of metropolitan fiber, driven ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ largely by the demand for DS3 and OC-3 links for ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ISPs. Metro DWDM ring solutions are still rare, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ making ATM-based virtual path (VP) very attractive. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ These networks must carry voice, packet data and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ private line traffic efficiently across a single ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ infrastructure. ATM?s QoS and statistical ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ multiplexing are driving ILECs and CLECs to deploy ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ VP rings. RHK expects this trend to accelerate. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ While routers will anchor some large networks, such ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ as Qwest and Frontier, large ATM and hybrid ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM/MPLS switches will also be common, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ particularly among ILECs and IXCs. MCI ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ WorldCom plans to continue to offer ATM services ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ to customers that require very robust services and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Sprint?s ION is ATM-based. Even ?pure IP? carriers ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ such as Level 3 admit that they are building their ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ networks atop ATM while they wait for IP to evolve ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ into a more robust ATM-like protocol, probably ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ MPLS. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ And don?t forget that outside the United States, ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ is still preferred by many service providers, which ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ have been installing ATM equipment for the past five ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ years. Of course, as IP demand grows, ATM?s ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ long-term future (greater than five years) is less ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ clear. However, if you believe, as I do, that MPLS is ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ as much ATM as it is IP, ATM?s future looks even ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ brighter. So, where does this leave ATM? Right ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ where it should be: in carrier access and backbone ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ networks. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 8888888888888888 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Steve Vogelsang, senior director of strategic and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ technical marketing, FORE Systems ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ -------------------------------------- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Those who recall the marketing campaigns around ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM in the early years will agree that we have not ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ yet experienced the marketed potential of ATM. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Marketers promised a world of high-quality data, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ voice and video transmission across a global ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ network with on-demand bandwidth and QoS to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ every user. Unfortunately, the marketing promises ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ were premature by a few years and we are now just ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ beginning to feel the impact of ATM. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ A few years ago, ATM found its place in carrier ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ networks as a highly available transport for emerging ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ services such as frame relay and the Internet. ATM is ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ now being used to construct the access networks on ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ which carriers offer converged services including ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ VPNs, Internet and public voice (PSTN). Its ability ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ to provision services using a familiar ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ connection-switching model over a packet ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ (cell)-switched fabric makes it an attractive and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ practical technology for offering new ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ packet-switched services. By using ATM ?under the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ covers? in the core transmission and access ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ networks, carriers have taken the first step in ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ delivering on the potential of ATM. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿÿÿÿÿ In the future ATM will serve as a catalyst in ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ delivering services with the ubiquitous connectivity, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ low unit cost and flexible bandwidth of the Internet ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ as well as the guaranteed bandwidth, high ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ availability and usage-based billing of traditional ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ telecom services. ATM?s current position in the core ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ of the Internet is serving as the proving ground for ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ emerging technologies such as MPLS.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ In the accessÿ network ATM is the foundation ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ upon which new IP-based services will be built,ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ including voice overÿÿ IP, and services enablingÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ on-demand IP data andÿ multimedia calls that leverageÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the existing PSTN callÿ model. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ When ATM?s full potential is realized it will not be ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the same ATM of days gone by. It will be a new ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ beast that combines the power of the Internet with the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ stability of the PSTN. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 8888888888888888 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Dr. Kurt Reiss, director, core platforms and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ services, InterNetworking Systems, Lucent ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Technologies ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ------------------------------------- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Most service providers already have an ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ network in place, so the next step is clear: Utilize the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ existing ATM backbone to consolidate all ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ services--including voice, data, IP, private line and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ wireless--onto this highly reliable and flexible ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ infrastructure. With a core ATM solution, service ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ providers can future-proof their networks and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ deliver emerging services as they mature and ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ continues to evolve to support them. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM provides the bandwidth and intelligence that ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ service providers need to deliver all ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ revenue-generating services--voice, data and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ video--from a single network infrastructure. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ High-capacity ATM switches also allow the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ convergence of network layers, reducing equipment ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ costs and simplifying network operations. For ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ example, some ATM switches already have OC-48 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ optical interfaces allowing direct connection to the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ optical layer. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ The multiservice aggregation capabilities inherent in ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM allow emerging services to be added to the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ existing infrastructure, protecting it from ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ obsolescence. The intelligence of ATM networks ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ allows providers to rapidly provision new services ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ on the existing infrastructure, take advantage of QoS ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ benefits to bill customers based on service-priority ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ levels, and minimize costs. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Among the advances that will continue to develop in ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM backbones is relief for the PSTN. The PSTN ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ was engineered to handle voice calls that typically ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ last three to five minutes, not Internet modem calls ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ that can last hours. This can create severe public ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ safety issues, such as critical 911 calls not getting ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ through. Data call offloading and voice over ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ do not require forklift upgrades to implement, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ preserving the benefits of billions of dollars in Class ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 5 switches deployed worldwide. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ These types of features will prove that the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ advantages offered by ATM today will continue to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ provide the foundation and capacity to deliver the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ services of the future. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 8888888888888888 ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿ Rod Odom, president, BellSouth Business Systems ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ -------------------------------------------- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM has rapidly become an integral part of service ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ provider backbones. We are just scratching the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ surface of the potential of ATM and will witness a ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ significant number of changes within the next decade. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ The standards for ATM are relatively mature, but the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ actual hardware and implementation are still ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ progressing. One example of that progression is ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ available bit rate (ABR), which is just now being ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ employed in CPE and provides for a more effective ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ use of bandwidth.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿ The Jackson Public Schools (JPS) district in ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Jackson, Miss., is on the leading edge of ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ technology. The district chose to install an ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ backbone to run its distance learning, video security, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ scheduling, Internet access, accounting and inventory ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ applications on one network. JPS is also conducting ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ a trial of a VoIP system to reside on the ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ network. This aggressive move will deliver ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ improved communications services throughout the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ school district. With this innovative technology in ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ place, JPS will have access to virtually unlimited ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ bandwidth, and all broadband traffic, including ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ voice, video and data, will traverse the same ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ network.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Every business could potentially benefit from an ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM network. ATM allows administrators to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ monitor and manage their networks 24 hours a day. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ With ATM they can consistently measure the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ utilization and performance of their networks and be ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ alerted if more bandwidth is needed before ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ deterioration occurs. Additionally, the QoS of ATM ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ networks makes it possible for carriers to offer ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ competitive service level agreements (SLAs). ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Perhaps we may even see comprehensive SLAs ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ covering interlata, interstate and international ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ networks. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ With its cell architecture, flexibility and high ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ bandwidth, ATM is ideally suited to serve as the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ heart of carriers? IP network offerings in the coming ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ years. In the future, as businesses move to computer ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ telephony integration (CTI) and integrated ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ multimedia e-commerce applications, carriers will ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ migrate from the ATM foundation to the even greater ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ speeds of IP over SONET. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 8888888888888888 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Marty Kaplan, chief technology officer, Sprint ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ----------------------------------------------------- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ To look at the future of ATM, you first have to look ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ at what it offers today. Currently, ATM provides ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Sprint with several basic attributes that are ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ necessary for integrating all services over a common ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ infrastructure. Those attributes are predictable ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ quality of service, congestion control, delivery ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ classes and dynamic bandwidth allocation ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ capabilities.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Sprint is looking at how best to optimize transport ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ and protocol efficiencies while at the same time ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ retaining those attributes previously mentioned. IP ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ gives us specific attributes, including efficient ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ multiplexing, interworking and multicasting. The ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ whole design of the Internet was ?IP over anything?-- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ IP over frame relay, IP over ATM, etc. Today, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ however, the reverse is not true. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ What we will see in the future is IP evolution ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ characterized by the merging of ATM with IP. This ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ new mode combines the best attributes of IP and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM. It will not look like the IP we see today; the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ packet structure will be different, as will the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ overhead structure. The merging of ATM and IP will ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ mirror what is presently happening in the transport ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ layer, where DWDM and SONET are merging. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ DWDM is more efficient, but the attributes of ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ SONET, such as timing, framing, survivability and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ service consistency, are required. So, DWDM will ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ take on the attributes of SONET. Applications will ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ be written in IP, so the new mode will probably be ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ called IP. We will gain value from not having to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ convert everything to IP. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 8888888888888888 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Vince Rocca, VP of engineering and CTO, 2nd ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Century ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ --------------------- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM has not realized its full potential because it has ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ been sold only as a transport service. In this ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ scenario, end users that purchase ATM must ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ understand the complexities of ATM to correctly ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ deploy it. This has proven to be a daunting task for ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ all but the most determined organizations. The real ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ value of ATM is as a local access service delivery ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ infrastructure. Here ATM itself is not presented to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the end user but rather is used to deliver services ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ efficiently by a carrier. Applications such as voice, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ video and Internet access can be delivered to a ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ customer via a single ATM access facility such as ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ DS-1 or DSL without the end user knowing that ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM is being used. By combining these services on ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ a single facility, significant savings can be realized ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ by carriers that traditionally have delivered these ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ services via separate access facilities. Also, since ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ services are truly integrated and bandwidth is ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ dynamically allocated as required, bandwidth is ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ shared among several services rather than dedicated. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Sharing bandwidth in this fashion effectively lowers ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the cost per bit to deliver services in the most ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ expensive portion of the network, the last mile. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM?s next step is to move from being a complex ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ technology that end users with limited resources must ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ retrain their work forces to use effectively to a ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ technology that carriers harness to deliver services ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ without requiring major expenditures by customers to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ use it. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 8888888888888888 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Bill Pearon, director of global product marketing, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Newbridge Networks ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ------------------------------------------------ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM has been on a roller coaster ride of criticism ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ lately. Not a year ago, IP proponents were ushering ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ in the premature demise of ATM due to the meteoric ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ proliferation of IP-based applications and services. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Only after the sobering realization that IP-based ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ services accounted for less than 4 percent of service ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ provider revenues in the United States in 1998 did ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the tide turn back to ATM?s strengths as an enabling ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ technology. After all, ATM was designed ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ specifically to provide efficient adaptation and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ consolidation of multiple services, both legacy and ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ emerging. Furthermore, while emerging IP services ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ promise to be the growth engines of tomorrow, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ legacy services provide the revenues today. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM?s maturity and acceptance is also due, in large ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ part, to its proven ability to deliver services in as ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ reliable a fashion as its predecessor networks. It is ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ living up to its original intention to be a resilient ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ multiservices protocol. There are also several ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ unexpected benefits from ATM?s capabilities. Not ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ only have multiple services been rolled off a single ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ platform, but now multiple network functions are ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ being performed within a single ATM platform, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ resulting in a simpler, flatter infrastructure. Digital ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ cross-connect functionality, Class 4 voice switch ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ functionality, integrated DSL delivery and direct ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ LMDS radio interfaces are just a few of the recent ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ creative implementations on ATM platforms. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Most interestingly, however, is ATM?s role in the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ future of IP core networks. ATM is providing the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ transitional solution for IP?s limitations in quality ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ and legacy service adaptation. IP core platforms are ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ utilizing ATM backplanes and IP QoS schemes are ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ mimicking ATM?s capabilities as IP continues to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ evolve as a future core network protocol. This ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ cooperative existence will continue well into the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ next decade as ATM?s enabling capabilities provide ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the springboard for IP?s credibility and robustness in ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the network core. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ 8888888888888888 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Rich Stankevich, ATM product marketing ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ manager, broadband systems division, General ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ DataComm ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ------------------------------------------- ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Worldwide, ATM has become a dominant ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ technological tool for service providers. The basis ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ of the technology and many of the standards defining ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ its ancillary features may be mature, but the provider ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ community is only now beginning to exercise the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM feature set and extract value from it. In the vast ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ majority of cases, the economies and efficiencies that ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ATM can provide remain largely untapped. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Several examples shed light on this.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ From the days when ATM was only an attractive theory, it was ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ perceived as a method for transport and switching of ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ broadband ISDN services--that is, dynamic, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ switched connectivity. Dynamic connection setup ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ and teardown allows for great efficiencies in the use ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ and management of facilities resources, yet many ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ providers have chosen to offer ATM services as ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ fixed, permanent virtual connections. In fact, most ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ core ATM networks today only offer subscribers ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ permanent virtual path (VP) connections: all the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ simpler to manage and operate. These subscriber VP ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ networks inefficiently use bandwidth and limit the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ capability of the provider to extend SLAs to the user ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ community. Narrowband-to-broadband signaling ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ interworking for dynamic WAN use and new ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ methods of WAN edge traffic shaping are some of ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the means by which service providers may gain more ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ flexible, assured use of their ATM investments. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Another area of unrealized ATM potential in the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ provider environment is in the ability to extract ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ billing/accounting information based on subscriber ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ usage. Whether data is collected at the service ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ network edge or network core, such information may ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ be manipulated for usage billing (with its own ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ attendant value to provider and subscriber). Usage ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ data may also be the basis for sophisticated ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ performance management, not only to tune the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ provider network, but also to monitor and ensure ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ subscriber services. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ All three issues--dynamic network use, more ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ sophisticated (and granular) traffic shaping, and the ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ creative application of usage metrics--will give ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ provider ATM networks the maturity they require to ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ support active interconnection with existing ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ subscriber applications and the burgeoning world of ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ IP services.ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Perhaps straining the maturity metaphor, ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ the service providers of the world are graduating ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ from ATM University. It?s time to use what they?ve ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ learned. ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ RSNo. 306ÿÿ ww2.infoxpress.com; ------------------------------------------------------------

To: Doug who wrote (15106)	11/25/1999 2:09:00 PM
From: fumble	Read Replies (2) \| Respond to of 18016

Are you aware of what development work these Companies are doing on next generation Silicon switches. In terms of moving from processor/software based routing to silicon (optical in the future), ATM has an advantage because it has a short fixed cell size. These short cells will appear in all-silicon or all-optical switches before IP, just because of the huge variable packet sizes in IP. Also, keep in mind that ATM is a protocol level above the transport level. Optical transport schemes and ATM can easily co-exist as they do now in many networks.