Fig. 7: Internet Protocol Stack
|
OSI Layer |
TCP/IP Layer |
Name |
Protocols |
|
7 |
5 |
Application |
DHCP, DNS, FTP, HTTP, IMAP, IRC, NNTP, POP3, SMTP, SNMP, SOAP, TELNET, XMPP, etc. |
|
6 |
|
Presentation |
MIME, ASN.1, SSL |
|
5 |
|
Session |
SIP |
|
4 |
4 |
Transport |
TCP, UDP |
|
3 |
3 |
Network |
IP, IPv6, IPsec |
|
2 |
2 |
Data Link |
Ethernet, FDDI, PPP |
|
1 |
1 |
Physical |
RS-232, DSL, SONET |
|