| Layer | OSI protocols | TCP/IP protocols | Signaling System 7[1] | AppleTalk | IPX | SNA | UMTS | Misc. examples |
|---|
| # | Name |
|---|
| 7 | Application | FTAM, X.400, X.500, DAP, ROSE, RTSE, ACSE[2] CMIP[3] | NNTP, SIP, SSI, DNS, FTP, Gopher, HTTP, NFS, NTP, DHCP, SMPP, SMTP, SNMP, Telnet, BGP | INAP, MAP, TCAP, ISUP, TUP | AFP, ZIP, RTMP, NBP | RIP, SAP | APPC | | HL7, Modbus |
| 6 | Presentation | ISO/IEC 8823, X.226, ISO/IEC 9576-1, X.236 | MIME, SSL, TLS, XDR | | AFP | | | | TDI, ASCII, EBCDIC, MIDI, MPEG |
| 5 | Session | ISO/IEC 8327, X.225, ISO/IEC 9548-1, X.235 | Sockets. Session establishment in TCP, RTP, PPTP | | ASP, ADSP, PAP | NWLink | DLC? | | Named pipes, NetBIOS, SAP, half duplex, full duplex, simplex, RPC, SOCKS |
| 4 | Transport | ISO/IEC 8073, TP0, TP1, TP2, TP3, TP4 (X.224), ISO/IEC 8602, X.234 | TCP, UDP, SCTP, DCCP | | | DDP, SPX | | | NBF |
| 3 | Network | ISO/IEC 8208, X.25 (Packet-LaISO/IEC 8878, X.223, ISO/IEC 8473-1, CLNP X.233. | IP, IPsec, ICMP, IGMP, OSPF, RIP | SCCP, MTP | ATP (TokenTalk or EtherTalk) | IPX | | RRC (Radio Resource Control) and BMC (Broadcast/Multicast Control) | NBF, Q.931, NDP, ARP (maps layer 3 to layer 2 address), IS-IS |
| 2 | Data Link | ISO/IEC 7666, X.25 (LAPB), Token Bus, X.222, ISO/IEC 8802-2 LLC Type 1 and 2[4] | PPP, SBTV, SLIP | MTP, Q.710 | LocalTalk, AppleTalk Remote Access, PPP | IEEE 802.3 framing, Ethernet II framing | SDLC | Packet Data Convergence Protocol (PDCP),[5] LLC (Logical Link Control), MAC (Media Access Control) | 802.3 (Ethernet), 802.11a/b/g/n MAC/LLC, 802.1Q (VLAN), ATM, HDP, FDDI, Fibre Channel, Frame Relay, HDLC, ISL, PPP, Q.921, Token Ring, CDP, ITU-T G.hn DLL
CRC, Bit stuffing, ARQ, Data Over Cable Service Interface Specification (DOCSIS), interface bonding |
| 1 | Physical | X.25 (X.21bis, EIA/TIA-232, EIA/TIA-449, EIA-530, G.703)[4] | | MTP, Q.710 | RS-232, RS-422, STP, PhoneNet | | Twinax | UMTS Physical layer or L1 | RS-232, Full duplex, RJ45, V.35, V.34, I.430, I.431, T1, E1, 10BASE-T, 100BASE-TX, 1000BASE-T, POTS, SONET, SDH, DSL, 802.11a/b/g/n PHY, ITU-T G.hn PHY, Controller Area Network, Data Over Cable Service Interface Specification (DOCSIS), DWDM |
