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Many articles considered PPP as a byte-oriented, and the others mention it as a bit-oriented.

+----------+----------+----------+----------+------------
       |   Flag   | Address  | Control  | Protocol | Information
       | 01111110 | 11111111 | 00000011 | 16 bits  |      *
       +----------+----------+----------+----------+------------
               ---+----------+----------+-----------------
                  |   FCS    |   Flag   | Inter-frame Fill
                  | 16 bits  | 01111110 | or next Address
               ---+----------+----------+-----------------

I think the frame fields all is in byte format, and it should be clearly byte-oriented.
can anyone say why PPP is byte-oriented as well as bit-oriented?

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  • Did any answer help you? If so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you can post and accept your own answer. – Ron Maupin Dec 16 '20 at 23:20
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The header and everything else in a PPP frame is byte-aligned - and I don't see anything that is bit-oriented.

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