before about 10 years ago. Someone ask a question “Do you know Preamble” ?
But I don’t know about it at that time. even though I thought I know almost about TCP/IP packet.
first. you can check details at wiki page
Anyway I have some insights of it now.
first. Preamble is not on the L3/L4 Layer. It was for L1 layer . so I hadn’t seen it, though I managed Huge TCP/IP packet on Real network . I only checked packet on Ethereal..( now wireshark ).
*Preamble is for synchronization of physical packet to notify the start of Packet. and the Packet is ended by *Interpacket Gap
*Preamble is like “Syn packet on TCP/IP”, “Hello whenever we meet “, “Delimiter”.
at the result… All Conversation is started with The Synchronization Procedure…..
Lechuck Park 