TCP/IP Protocols

Application Layer

  • BEEP: Blocks Extensible Exchange Protocol
  • BOOTP: Bootstrap Protocol
  • DCAP: Data Link Switching Client Access Protocol
  • DHCP: Dynamic Host Configuration Protocol   
  • DNS: Domain Name Systems  
  • FTP: File Transfer Protocol  
  • Finger: User Information Protocol  
  • HTTP: Hypertext Transfer Protocol  
  • HTTPS: Secure Hypertext Transfer Protocol (S-HTTP)  
  • IMAP & IMAP4: Internet Message Access Protocol (IMAP version 4)  
  • IMPPpre: Instant Messaging and Presence Protocol  
  • IPFIX: Internet Protocol Flow Information eXport  
  • IPDC: IP Device Control  
  • IRCP (IRC): Internet Relay Chat Protocol  
  • LDAP: Lightweighted Directory Access Protocol  
  • MIME: Multipurpose Internet Mail Extensions  
  • NETCONF: Network Configuration Protocol  
  • NAT: Network Address Translation  
  • NNTP: Network News Transfer Protocol  
  • NTP: Network Time Protocol  
  • POP & POP3: Post Office Protocol (version 3 )  
  • RLOGIN: Remote Login in Unix   
  • RMON: Remote Monitoring MIBs in SNMP  
  • SLP: Service Location Protocol  
  • S/MIME: Secure Multipurpose Internet Mail Extensions  
  • SMTP: Simple Mail Transfer Protocol  
  • SNMP: Simple Network Management Protocol  
  • SNTP: Simple Network Time Protocol  
  • Syslog Protocol  
  • TELNET: TCP/IP Terminal emulation Protocol  
  • TFTP: Trivial File Transfer Protocol  
  • URL: Uniform Resource Locator  
  • WCCP: Web Cache Coordination Protocol  
  • Whois (and RWhois): Directory Access Protocol  
  • XMPP: Extensible Messaging and Presence Protocol  
  • X-Window: X Window Systems Protocol for UNIX Display

Presentation Layer

  • LPP: Lightweight Presentation Protocol

Session Layer

  • NBSS: NetBIOS Session Service over TCP/IP  
  • RPC: Remote Procedure Call protocol

Transport Layer 

  • ITOT: ISO Transport Over TCP/IP  
  • RDP: Reliable Data Protocol  
  • RUDP: Reliable UDP 
  • TALI: Transport Adapter Layer Interface  
  • TCP: Transmission Control Protocol  
  • UDP: User Datagram Protocol  
  • Van Jacobson: Compressed TCP

Network Layer

Routing Protocols

  • IP: Internet Protocol
  • IPv6: Internet Protocol version 6  
  • ICMP/ICMPv6: Internet Control Message Protocol  
  • IRDP: ICMP Router Discovery Protocol  
  • BGP/BGP4: Border Gateway Protocol  
  • EGP: Exterior Gateway Protocol  
  • Mobile IP: Mobility support for IPv4 and IPv6  
  • NARP: NBMA Address Resolution Protocol  
  • NHRP: Next Hop Resolution Protocol  
  • OSPF: Open Shortest Path First  
  • RIP (RIP2): Routing Information Protocol  
  • RIPng: RIP for IPv6  
  • RSVP: Resource ReSerVation Protocol  
  • VRRP: Virtual Router Redundancy Protocol

Multicast Protocols

  • BGMP: Border Gateway Multicast Protocol  
  • DVMRP: distance Vector Multicast Routing Protocol  
  • IGMP: Internet Group Management protocol  
  • MARS: Multicast Address Resolution Server  
  • MBGP: Multiprotocol BGP  
  • MOSPF: Multicast OSPF  
  • MSDP: Multicast Source Discovery Protocol  
  • MZAP: Multicast-Scope Zone Announcement Protocol  
  • PGM: Pragmatic General Multicast Protocol  
  • PIM-DM: Protocol Independent Multicast - Dense Mode  
  • PIM-SM: Protocol Independent Multicast - Sparse Mode


  • MPLS: Multi-Protocol Label Switching   
  • GMPLS: Generalized MPLS  
  • CR-LDP: Constraint-Based Label Distribution Protocol  
  • LDP: Label Distribution Protocol  
  • RSVP-TE: Resource ReSerVation Protocol-Traffic Engineering
  • VPLS: Virtual Private LAN service 
  • HVPLS: Hierarchical Virtual Private LAN service   

Data Link Layer

  • ARP: Address Resolution Protocol  
  • IARP: Inverse Address Resolution Protocol  
  • IPCP & IPv6CP: IP Control Protocol and IPv6 Control Protocol  
  • RARP: Reverse Address Resolution Protocol  
  • SLIP: Serial Line IP


AAA – Authentication Authorization Accounting

  • DIAMETER Protocol
  • Kerberos: Network Authentication Protocol
  • RADIUS: Remote Authentication Dial In User Service  
  • SSH: Secure Shell Protocol


  • L2F: Level 2 Forwarding protocol  
  • L2TP: Layer 2 Tunneling Protocol  
  • PPTP: Point to Point Tunneling Protocol

Secured Routing

  • DiffServ: Differenciated Service   
  • GRE: Generic Routing Encapsulation  
  • IPsec: Security Architecture for IP network  
  • ISAKMP: Internet Security Association and Key Management Protocol   
  • IKE: Internet Key Exchange Protocol  
  • AH: Authentication Header  
  • ESP: Encapsulating Security Payload  
  • TLS: Transport Layer Security Protocol  


  • Socks: Protocol for sessions traversal across firewall securely



  • H.323: Packet-based multimedia communications (VoIP) architecture  
  • H.225: Call Signaling and RAS in H.323 VOIP Architecture  
  • H.235: Security for H.323 based systems and communications  
  • H.245: Control Protocol for Multimedia Communication  
  • T.120: Multipoint Data Conferencing Protocol Suite  
  • Megaco / H.248: Media Gateway Control protocol  
  • MGCP: Media Gateway Control Protocol 
  • NCS: Network-Based Call Signaling Protocol 
  • SIP: Session Initiation Protocol  
  • SDP: Session Description Protocol  
  • SAP: Session Announcement Protocol  
  • SCCP: Skinny Client Control Protocol


  • RTP: Real Time Transport Protocol  
  • RTCP: RTP Control Protocol


  • G.7xx: Audio (Voice) Compression Protocols (G.711, G.721, G.722, G.723, G.726, G.727. G.728, G.729)  
  • H.261: Video CODEC for video conferencing  
  • H.263: Video CODEC for video conferencing  
  • H.264/MPEG-4: Video CODEC for high quality video streaming  


  • COPS: Common Open Policy Service  
  • RTSP: Real Time Streaming Protocol  
  • SIGTRAN: Signaling Transport protocol stack for SS7/C7 over IP networks  
  • IUA: ISDN Q.921-User Adaptation Layer  
  • M3UA: SS7 Message Transfer Part 3 (MTP3) User Adaptation layer  
  • M2UA: SS7 Message Transfer Part 2 (MTP2) User Adaptation layer  
  • M2PA: MTP2 Peer-to-peer user Adaptation layer  
  • SCTP: Stream Control Transmission Protocol  
  • V5UA: V5.2-User Adaptation Layer  
  • TRIP: Telephony Routing Over IP

LAN - Local Area Network


  • Ethernet LAN protocols as defined in IEEE 802.3 suite
  • Fast Ethernet: Ethernet LAN at data rate 100Mbps (IEEE 802.3u)  
  • Gigabit Ethernet: Ethernet at data rate 1000Mbps (IEEE 802.3z, 802.3ab)  
  • 10Gigabit Ethernet: Ethernet at data rate 10 Gbps (IEEE 802.3ae)


  • Wireless LAN in IEEE 802.11, 802,11a, 802.11b, 802.11g and 802.11n  
  • Bluetooth and IEEE802.15  
  • IEEE 802.11i: WLAN Security Standards  
  • IEEE 802.1X: WLAN Authentication & Key Management 


  • IEEE 802.1Q: Virtual LAN Bridging Switching Protocol  
  • GARP: Generic Attribute Registration Protocol (802.1P)  
  • GMRP: GARP Multicast Registration Protocol (802.1P)  
  • GVRP: GARP VLAN Registration Protocol (802.1P, 802.1Q)  
  • VTP: VLAN Trunking Protocol
  • 802.3ad link aggregation
  • 802.1ad (Q-in-Q) provider bridge
  • 802.3ah: Ethernet OAM: link monitoring, fault signaling, and remote loopback  

Token Ring

  • Token Ring: IEEE 802.5 LAN protocol 


  • FDDI: Fiber Distributed Data Interface


  • LLC: Logic Link Control (IEEE 802.2)  
  • SNAP: SubNetwork Access Protocol  
  • STP: Spanning Tree Protocol (IEEE 802.1D)  
  • IEEE 802.1p: LAN Layer 2 QoS/CoS Protocol 
  • IEEE 802.1w Rapid STP
  • IEEE 802.1s Multiple STP

MAN - Metropolitan Area Network  


  • DQDB: Distributed Queue Dual Bus Defined in IEEE 802.6  
  • Ethernet at data rate 10 Gbps (IEEE 802.3ae)  
  • SMDS: Switched Multimegabit Data Service   
  • WiMax and IEEE802.16

WAN - Wide Area Network


  • ATM: Asynchronous Transfer Mode  
  • AAL: ATM Adaptation Layer  
  • AAL0 - AAL5: ATM Adaptation Layer Type 0-5 reserved for variable bit rate video transfer
  • IMA - Inverse Mux over ATM  
  • LANE-NNI: LAN Emulation - Network to Network Interface  
  • LANE-UNI: LAN Emulation - User to Network Interface  
  • MPOA: Multi Protocol Over ATM  
  • PNNI: Private Network-to-Network Interface  
  • Q.2931: ATM Signaling UNI


  • SONET: Synchronous Optical Network
  • EoS: Ethernet over SONET/SDH

Broadband Access

  • DOCSIS: Data Over Cable Service Interface Specification  
  • BISDN: Broadband Integrated Services Digital Network  
  • ISDN: Integrated Services Digital Network  
  • Q.931: ISDN network layer interface protocol  
  • LAPD: ISDN Link Access Protocol Channel D (Q.921)  
  • xDSL: Digital Subscriber Line Technologies (DSL, IDSL, ADSL, HDSL, SDSL, VDSL, G.Lite)

PON (Passive Optical Network)

  • APON: ATM Passive Optical Network  
  • BPON: Broadband Passive Optical Network  
  • EPON: Ethernet Passive Optical Network  
  • GPON(GigaPON): Gigabit Passive Optical Network  

Frame Relay

  • Frame Relay: WAN protocol for internetworking at layer 2  
  • LAPF: Link Access Procedure/Protocol (ITU Q.922)  


  • PPP: Point to Point Protocol  
  • BAP: PPP Bandwidth Allocation Protocol  
  • BACP: PPP Bandwidth Allocation Control Protocol  
  • BCP: PPP Bridging Control Protocol  
  • CHAP: Challenge Handshake Authentication Protocol  
  • EAP: PPP Extensible Authentication Protocol  
  • LCP: PPP Link Control Protocol  
  • MultiPPP: MultiLink PPP (MP)  
  • NCP: Network Control Protocols  
  • PAP: Password Authentication Protocol
  • PoS: Packet over SONET/SDH  
  • PPPoE: PPP over Ethernet  
  • PPPoA: PPP over ATM AAL5  


  • HDLC:  High Level Data Link Control protocol  
  • LAPB: Link Access Procedure Balanced for x.25  
  • X.25: ITU-T WAN communication protocol  
  • X.75: Signaling system used to connect packet switched networks (X.25)


  • SDLC: Synchronous Data Link Control protocol

SAN - Storage Area Network


  • DQDB: Distributed Queue Dual Bus Defined in IEEE 802.6
  • FCIP: Entire Fibre Channel Frame Over IP  
  • FCP: Fibre Channel Protocol  
  • iFCP: Internet Fibre Channel Protocol  
  • iSCSI: Internet Small Computer System Interface  
  • iSNS: Internet Storage Name Service  
  • NDMP: Network Data Management Protocol  
  • SAS: Serial Attached SCSI  
  • SCSI: Small Computer System Interface

ISO Protocols


  • ACSE: Association Control Service Element  
  • CMIP: Common Management Information Protocol  
  • CMIS: Common Management Information Service  
  • CMOT: CMIP over TCP/IP  
  • FTAM: File Transfer Access and Management   
  • ROSE: Remote Operation Service Element  
  • RTSE: Reliable Transfer Service Element Protocol  
  • VTP: ISO Virtual Terminal Protocol   
  • X.400: Message Handling Service (ISO email transmission service) Protocols  
  • X.500: Directory Access Service Protocol (DAP)

Presentation Layer

  • ISO-PP: OSI Presentation Layer Protocol  
  • ASN.1: Abstract Syntax Notation One

Session Layer

  • ISO-SP: OSI Session Layer Protocol

Transport Layer

  • ISO-TP: OSI Transport Protocols: TP0, TP1, TP2, TP3, TP4

Network Layer

  • ISO-IP: CLNP: Connectionless Network Protocol  
  • CONP: Connection-Oriented Network Protocol  
  • ES-IS: End System to Intermediate System Routing Exchange protocol  
  • IDRP: Inter-Domain Routing Protocol  
  • IS-IS: Intermediate System to Intermediate System

Data Link

  • HDLC: High Level Data Link Control protocol  
  • LAPB: Link Access Procedure Balanced for X.25

Cisco Protocols


  • CGMP: Cisco Group Management Protocol  
  • EIGRP: Enhanced Interior Gateway Routing Protocol  
  • IGRP: Interior Gateway Routing Protocol  
  • HSRP: Hot Standby Routing Protocol  
  • RGMP: Cisco Router Port Group Management Protocol  

Data Link

  • CDP: Cisco Discovery Protocol  
  • DISL: Dynamic Inter-Switch Link Protocol  
  • DTP: Dynamic Trunk Protocol  
  • ISL: Inter-Switch Link Protocol  
  • VTP: VLAN Trunking Protocol  


  • L2F: Layer 2 Forwarding Protocol  
  • TACACS: Terminal Access Controller Access Control System  


  • SCCP: Skinny Client Control Protocol  
  • XOT: X.25 Over TCP
  • NetFlow: Cisco Network Traffic Monitoring and Management Protocol

Novell - NetWare  


  • DQDB: Distributed Queue Dual Bus Defined in IEEE 802.6
  • IPX: Novell Internetwork Packet Exchange  
  • NCP: NetWare Core Protocol  
  • NDS: NetWare Directory Service  
  • NetWare: Novell Network Operating System (NOS)  
  • NLSP: NetWare Link State Protocol  
  • SAP: Service Access Point  
  • SPX: Sequenced Packet Exchange


Transaction services

  • SMB: Server Message Block protocol

Presentation service

  • APPC: Advanced Program to Program Communication (LU 6.2)  
  • LU: Logic Units - LU 0, LU 1, LU2, LU 3 LU 6.2

Data flow control

  • NetBIOS: Network Basic Input Output System

Transmission control

  • NetBEUI: NetBIOS Extended User Interface

Path control

  • NAU: Network Addressible Units  
  • APPN: Advanced Peer to Peer Networking  

Data Link control

  • DLSw: Data Link Switching protocol  
  • QLLC: Qualified Logic Link Control for SNA over X.25  
  • SDLC: Synchronous Data Link Control protocol

Apple - AppleTalk


  • AppleShare: for platform sharing of a variety of user computers


  • AFP: AppleTalk Filing Protocol


  • ADSP: Appletalk Data Stream Protocol  
  • ASP: AppleTalk Session Protocol  
  • PAP: Printer Access Protocol  
  • ZIP: Zone Information Protocol


  • AEP: AppleTalk Echo Protocol  
  • ATP: AppleTalk Transaction Protocol  
  • NBP: Name Binding Protocol  
  • RTMP: Routing Table Maintenance Protocol


  • DDP: Datagram Delivery Protocol           

Data Link

  • AARP: AppleTalk Address Resolution Protocol  
  • LLAP: LocalTalk Link Access Protocol  
  • EtherTalk: AppleTalk Ethernet interface  
  • TokenTalk: AppleTalk Token Ring interface 



  • CIFS: Common Internet File System  
  • SOAP: Simple Object Access Protocol

HP (Include DEC) - DECnet  


NICE: Network Information and Control Exchange protocol


  • CTERM: Command Terminal  
  • DAP: Data Access Protocol


  • SCP: Session Control Protocol


  • NSP: Network Service Protocol


  • DRP: DECnet Routing Protocol

Data Link

  • MOP: Maintenance Operation Protocol  
  • DDCMP: Digital Data Communications Message Protocol



  • DQDB: Distributed Queue Dual Bus Defined in IEEE 802.6
  • NFS: Network File System  
  • RPC: Remote Procedure Call protocol

SS7 / C7 for Telephony Signalling protocols  


  • DQDB: Distributed Queue Dual Bus Defined in IEEE 802.6
  • ASP: Application Service Part  
  • BICC: Bearer Independent Call Control protocol  
  • BISUP: B-ISDN User Part  
  • DUP: Data User Part  
  • ISUP: ISDN User Part  
  • MAP: Mobile Application Part  
  • MTP: Message Transfer Part level 2 and 3  
  • SCCP: Signalling Connection Control Part  
  • TCAP: Transaction Capabilities Application Part  
  • TUP: Telephone User Part

Mobile / Wireless  


  • DQDB: Distributed Queue Dual Bus Defined in IEEE 802.6
  • CDMA: Code Division Multiple Access  
  • CDMA2000: 3rd Generation CDMA wireless standard  
  • GPRS: General Packet Radio Service  
  • GSM: Global System for Mobile Communication  
  • TDMA: Time Division Multiple Access  
  • WAP: Wireless Application Protocol  
  • WML: Wireless Markup Language  
  • UMTS: Universal Mobile Telecommunications System



  • DQDB: Distributed Queue Dual Bus Defined in IEEE 802.6
  • FANP: Flow Attribute Notification Protocol  
  • Xerox: IDP: Internet Datagram Protocol