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Technology Stocks : Cisco Systems, Inc. (CSCO)

CSCO 71.07

-1.4%

Nov 6 3:59 PM EST

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To: The Phoenix who wrote (18548)	10/29/1998 12:40:00 PM
From: aladin	Read Replies (2) of 77397

Gary, Whats really funny about his view is the lack of knowledge about how the 'underlying switched fabric' does its job. Its now called PNNI and the ATM spec is over an inch thick and is specifically called 'PNNI Routing'. If you were not being told it was 'switching' you would swear it looks just like ISIS or OSPF (Layer 3 routing protocols). Having been at some of the multivendor PNNI tests, I can tell you the convergence on switches isn't much different than routers. BTW the delay (latency) imposed by a router is measured in micro seconds - the extra layer in the OSI model doesn't necessarily mean anything in real performance terms. John

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