897 B
Executable File
897 B
Executable File
| OSI | Internet 4 Layer | Protocols |
|---|---|---|
| Application Presentation |
Application | HTTP SMTP Telnet |
| Session Transport |
Host2Host Transport | TCP, UDP |
| Network | Internet | IP, ICMP |
| Data Link Physical |
Network Access | PPP IP-over-ADSL 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