In AXI4 Stream protocol apart from data byte two other byte types are defined known as position byte and null byte.
For the position byte the description says: "A byte that indicates the relative positions of data bytes within the stream. This is a placeholder that does not contain any relevant data values that are transmitted between the source and destination."
So how does the slave process position byte. Additionally Null byte also does not contain any relevant information, so what is the difference between these two bytes.
Can anyone elaborate on this?