T1 is layer 1
Frame Relay is Layer 2. It has datalink addressing (DLCIs).
Frame relay runs over T1 (and other things like 56K DDS and DS-3).
JOE
CCNP, CCDP, and a few other things...
CCIE Lab - May 27/28
"John Zaggat" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Can some one clearly explain the difference between T1
> and Frame relay, Does T1 run over Frame relay circuits
> ? Aren't they both Layer 1 in the OSI model.
> I have searched the archives and found some good info
> but I am still a little fuzzy about the concepts.
> Thanks Guys.
>
> =====
> JZ
> [EMAIL PROTECTED]
>
>
>
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