16 lines
897 B
Markdown
Executable File
16 lines
897 B
Markdown
Executable File
| OSI | Internet 4 Layer | Protocols |
|
|
| --------------------------- | ------------------- | --------------------------------------- |
|
|
| Application<br>Presentation | Application | HTTP<br>SMTP<br>Telnet |
|
|
| Session<br>Transport | Host2Host Transport | TCP, UDP |
|
|
| Network | Internet | IP, ICMP |
|
|
| Data Link<br>Physical | Network Access | PPP<br>IP-over-ADSL<br>IP-over-Ethernet |
|
|
|
|
# Internet Protocol version 4
|
|
|
|
- Connectionless packet oriented service
|
|
- Unreliable service, no guarantee of delivery
|
|
- Best effort, no error recovery
|
|
|
|
All packets routed independently
|
|
- Routers examine destination IP address and choose best route to forward packet
|
|
- Big packets fragmented, fragments routed separately |