I'm going to say the addresses are L3, udp used as transport is L4, and the
apps are L7, with some of the formats such as MPeg2 L6.


""Lopez, Robert""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> At what OSI layer do IP multicasts lie?  Reading through CCO has made me
> more doubtful in my choices.
>
> TIA
>
> Robert




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