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Technology Stocks : Newbridge Networks

NN 17.04

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To: fumble who wrote (13071)	8/27/1999 9:37:00 PM
From: Tunica Albuginea	Read Replies (1) of 18016

fumble, interesting post.Are you saying that - The Cerent switch is primarily software based? - functioning on a mathematical statistical basis? -nad because of that it is less reliable for a) QoS and b) to build / design a network on? Also that ATMs are more hardware based and thus more predictable/reliable and thus better QoS and basis to design/build networks on? Just trying to understand this better, TA <<In theory yes, but in practice carriers oversubscribe their ATM switches 4 or 5 to one.>> Just like the airlines. And, just like the airlines, there are remedies - but this gets into the legal and regulatory areas - not the design of the network. With a statistically based network, the customer cannot complain, because 1) they don't have the contract, 2) the network operator just raises their finger. Sooner or later, the customers will be demanding reliable and predictable (and contractual QoS). ATM can provide this. IP and statistical multiplexers cannot.

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