OSI MODEL, LAYERS & PROTOCOLS
7 Application
Web Browser, Email, Print Serivces, SIP, SSH and SCP, NFS, RTSP, Feed, XMPP, Whois, SMB; DNS; FTP; TFTP; BOOTP; SNMP;RLOGIN; SMTP; MIME; NFS; FINGER; TELNET; NCP; APPC; AFP; SMB
6 Presentation
XDR, ASN.1, SMB, AFP, NCP, MIDI, HTML, GIF, TIFF, JPEG, ASCII,
EBCDIC
5 Session
TLS, SSH, X.225, RPC, NetBIOS, ASP, Winsock, BSD
4 Transport
TCP, UDP, RTP, SCTP, SPX, ATP
Gateway, Advanced Cable Tester, Brouter
3 Network
IP, ICMP, IGMP, BGP, OSPF, RIP, IGRP, EIGRP, ARP, RARP, X.25, NETBEUI
Brouter, Router, Frame Relay Device, ATM Switch, Advanced Cable Tester, DDP
2 Data Link
Ethernet, Token ring, StarLAN, HDLC, Frame relay, ISDN, ATM, 802.11 WiFi, FDDI, PPP, Bridge, Switch, ISDN Router, Intelligent Hub, NIC, Advanced Cable Tester, ARCNET, LocalTalk, FDDI, ATM. NIC Drivers: Open Datalink Interface (ODI), Network Independent Interface Specification (NDIS)
1 Physical
NIC, Twisted Pair, Coax, Fiber Optic, Wireless Media, Repeater, Multiplexer, Hubs, (Passive/Active), TDR, Oscilloscope, Amplifier, Carrier pigeon
TCP LAYERS
4 Application (OSI - Layers5 through 7)
HTTP, FTP, DNS
(Routing protocols like BGP and RIP, which for a variety of reasons run over TCP and UDP respectively, may also be considered part of the Internetwork layer)
3 Transport (OSI - Layers4 and 5)
TCP, UDP, RTP, SCTP
(Routing protocols like OSPF, which run over IP, may also be considered part of the Internetwork layer)
2 Internetwork (OSI - Layer 3)
For TCP/IP this is the Internet Protocol (IP)
(Required protocols like ICMP and IGMP run over IP, but may still be considered part of the Internetwork layer; ARP does not run over IP)
1 Link (OSI - Layers 1 and 2)
Ethernet, Wi-Fi, MPLS, etc.
