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To: Peter Piper who wrote (28642)	11/13/1997 2:21:00 PM
From: pat mudge	Respond to of 31386

[Alcatel ADSL trials] It looks as though Alcatel is finally entering their equipment in trials, a full year behind GTE. alcatel.com <<<FURTHER SUCCESSES FOR ALCATEL'S ADSL TECHNOLOGY IN FRANCE, BELGIUM, AND SPAIN Paris, November 12, 1997 -- Alcatel's ADSL technology has just been chosen by three of the main European telecom operators - France Telecom, Belgacom and Telefonica - for tests which will take place in their respective countries: France, Belgium and Spain. In France, France Telecom has launched the first trials using Alcatel ADSL (Asymmetric Digital Subscriber Line) technology, which enables conventional telephone lines to provide faster transmission rates that are particularly well suited to multimedia services. 500 volunteer subscribers in towns in the Paris region (Noisy le Grand, Villiers sur Marne, and Gournay sur Marne) will be able to test the fast access to the Internet while at the same time maintaining access to all the conventional services they have subscribed to. A first group of 50 subscribers has already been connected, and the remaining 450 will be connected during the first quarter of 1998. The aim of this 20-month trial is to evaluate the residential and SOHO (Small Office Home Service) markets, pinpoint new applications that could result from the available transmission rates, and study the economy of the various services. In Belgium, Belgacom has launched the pilot project "Turbo Liner" based on ADSL technology, placing an order for 1000 ADSL lines from Alcatel. These lines will be installed over the next six months. Thanks to ADSL technology, Belgacom will be able to offer high-speed transmission through its existing telephone network. It will be able to provide multimedia services with simultaneous transfer of voice, data and images, over the existing copper infrastructure. As an example, subscribers will have access to the Internet at speeds up to 100 times faster than the fastest connection times obtained with a conventional modem. In Spain, before the year end, Telefonica will be testing for the first time Alcatel's ADSL technology in several areas around Barcelona and Madrid covering several hundred subscribers. The equipment will be installed before the end of 1997 and will meet the needs of subscribers who want very fast access to a wide range of high-speed and high added value services. Alcatel's main customers for ADSL technology are Singapore Telecom, the American operators Ameritech, BellSouth, Pacific Bell and SouthWestern Bell, Telia in Sweden, British Telecom and, more recently, Bell Canada. Pilot projects have also been ordered by Korea, Japan and Denmark. Today Alcatel holds over 30% of world market, making it the world leader in ADSL technology. . . .>>> Does any other DSL vendor have a product equal to DANA? alcatel.com

To: Peter Piper who wrote (28642)	11/15/1997 1:22:00 AM
From: SteveG	Respond to of 31386

<Did we ever conclude whether ADSL can cause more timeouts?> Just as increases in the number of users will, there is no doubt that more (both per unit time and over time) bandwidth taxes already strained backbone routers. And also without doubt this leads to more TOs, RTOs and PL. But my original point was that ADSL would likely initially have (at best) NO effect on backbone throughput, and in worst case scenarios, the bandwidth overload of the backbone routers could SLOW throughput - UNTIL the backbone is no longer the significantly greater limiting factor (ie., several to many years) <"No matter how good your backbone and your servers may be, if your clients have 14.4-kilobit-per-second modems, you have a bottleneck," McQuary said.> As previously discussed, WHERE the bottlenecks occur are important to consider. The local (copper) loop creates bottlenecks between a CP and the ISP server. Currently, TOs and PL are found predominately in the backbone. The backbone is the limiting factor CURRENTLY, and will likely continue to be so for a good while to come. QoS tech helps, but desktop ATM much less likely than once thought. Technologies like MMCN which offer CoS and QoS, as well as reduce the Frame to Cell speed differentials, will additionally help. <...All things dynamically unpredictable, ADSL could wreck havoc and terror onto the ISP and backbone...> Arguably, backbones ARE getting better (the greatest limitation being routing protocols), but still have a long way to go. I don't have the time to dig up all the references I have read (20+ hour days are wrecking havoc and terror on my NS), but I remain skeptical of claims to the contrary. Regards- Steve ("friends don't let friends post bleary-eyed")