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11651 Views 6 Replies Latest reply: Jul 21, 2009 1:42 PM by chemilio RSS

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Frame relay - which OSI layer ?

Jul 21, 2009 10:53 AM

chemilio 243 posts since
May 31, 2009

Hi everyone,

I was under the impression that frame relay operates strictly under the data link layer of OSI model.

But now that i've researched over the net I get mixed results where some sources

include  frame relay in the physical layer as well. What would you answer if you came

accross such question in CCNA?




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