Bill Cunningham wrote
If datagram and packet is the same, then what are frames?
TCP is carried by PPP frames. I'm not sure about APEX (rfc 3340)
This is not new, is it what we are referring to?
+---+--------------+----------------------+
! # ! Layer name ! PDU !
+---+--------------+----------------------+
! 7 ! Application ! Messages !
! 6 ! Presentation ! Messages !
! 5 ! Session ! Messages !
! 4 ! Transport ! Segments !
! 3 ! Network ! Packets or datagrams !
! 2 ! Data Link ! Frames !
! 1 ! Physical ! Bits !
+---+--------------+----------------------+
Michel.