DC TCP/IP #3
See class notes! This does not contain all the information from
the class.
Remember:
- UDP - connectionless
- TCP - connection oriented, so needs setup and disconnect
established with three-way handshake
Virtual Connections: achieved in software!
TCP uses IP to carry messages:
- TCP message is encapsulated in an IP packet
- Sent through Internet
- IP receiver passes contents to TCP
{Sender} Data Stream to {Receiver} Data Stream
- Sender: {OSI 7-5} Data stream ->
- {OSI 4} datagrams ->
- {OSI 3-1} [transferred over Internet, maybe separated into
fragments] ->
- Receiver: {OSI 1-3}
- {OSI 4} datagrams ->
- {OSI 5-7} Data stream
Dr. Kathleen Kaplan, Howard University
Email:
[email protected]