Actually ICMP is a protocol from Layer 3, it would not use all layers as you want. To have a full detailed connection you would need to use a service like a HTTP connection:
- Layer 7 application - HTTP - Exchange the messages
Client would send out HTTP header
Server answers: HTTP header [File]
Server keeps sending File
(Data)
Layer 6 - Takes care of compression and encryption
- Layer 5 - Keeps the session supporting upper layer
(Data)
- Layer 4 - Will add a header with source and destination ports, and the PDU name is Segment. On this case it will use as destination port 80 and source would be a ramdom port upper 1063.
HTTP uses port 80 of TCP, then, all TCP features such for ack, sequence number and windowing
(4-Source P / Dsti P.)[Data]
- Layer 3 - This layer will add its header which contains source (requestor) and destination (HTTP server) address. Now it becomes a packet
(3-Source IP / Desti IP) [(4-Source P / Dsti P.)[Data]]
- Layer 2 - Will address it header as well and a trailer for FCS (Frame check sequence). It depends the king of technology?
Ethernet - Header is source and destination (next-hop, like default-gateway) MAC address; OR
Frame-relay - Header contains DLCI
Now the PDU is frame
(2-Source MAC / Desti MAC) (3-Source IP / Desti IP) [(4-Source P / Dsti P.)[Data]](2-FCS)]
- Layer 1 is the medium, the frame is going to be converted into bits/eletronic waves and send out on the cables.
Bits (0010010101001001001001010100101010010101010)
As soon those bits arrived on the next point, it will check until its layer, like:
A switch will check until layer 2
A router will until layer 3
And destination server will go UP, checking 4, 5, 6 and 7
HTH,
Rodrigo
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