我讀到 PPP 可以使用位元和位元組填充，但我想不出為什麼優先使用位元組填充的任何原因。你可以嗎？
答案1
從一些教科書中複製的
PPP was clearly designed to be implemented in software, not in hardware as
HDLC nearly always is. With a software implementation, working entirely
with bytes is much simpler than working with individual bits. In addition,
PPP was designed to be used with modems, and modems accept and transmit
data in units of 1 byte, not 1 bit.