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Rumi
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Registered: Dec 2000
Location: Toronto, Canada
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 Wan Tecnology
Regarding wan technology most cisco books says it operates on layer 1 and 2, but the cisco web site also includes layer 3"
Let me paste you what CISCO academy books says:
"A WAN (wide area network) operates at the physical layer and the data link layer of the OSI reference model."
From their web site:
WAN technologies function at the lower three layers of the OSI reference model: the physical layer, the data link layer, and the network layer.
OK, now what the right answer for this?
can anyone explain to me. Thanx
rumi
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 12-15-01 06:40 AM
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dmaftei
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M
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12-15-01 02:25 PM
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kneto
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12-15-01 03:18 PM
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pcwizzard
Systems Engineer
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 Just my opinion.....
WAN's by themselves do operate at the Physical and Data Link layers of the OSI Model.
I think where youre getting confused is when they dicuss WAN Technologies/Protocols which operate at the Physical, Data Link, and Network layer of the OSI Model.
Thats just my opinion.....
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12-15-01 09:39 PM
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