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Communications protocol

(Redirected from Network protocol)

In networking, a communications protocol or network protocol is the specification of a set of rules for a particular type of communication.

Different protocols often describe different aspects of a single communication; taken together, these form a protocol stack. The terms "protocol" and "protocol stack" also refer to the software that implements a protocol.

Most recent protocols are assigned by the IETF for internet communications, and the IEEE, or the ISO organizations for other types. The ITU-T handles telecommunications protocols and formats.

Index page for network protocols and protocol layers, categorised by the nearest matching layers of the OSI seven layer model.

Systems engineering principles have been applied to design network protocols.

Contents

Protocol families

Various protocol stacks or families

There are many articles about network protocols. One of the sites with high quality protocol information is by Javvin (www.javvin.com [1]).

Individual protocols

Layer 1 protocols (physical layer)

  • ISDN Integrated Services Digital Network
  • PDH Plesiochronous Digital Hierarchy
  • RS-232, a serial line interface originally developed to connect modems and computer terminals
  • SDH Synchronous Digital Hierarchy
  • SONET Synchronous Optical NETworking

Layer 2 protocols

Layer 2+3 protocols

Layer 3 protocols

Layer 3+4 protocols

Layer 4 protocols

  • SPX Sequenced Packet Exchange
  • TCP Transmission Control Protocol
  • UDP User Datagram Protocol
  • SCTP Stream Control Transmission Protocol
  • RTP Real-time Transport Protocol

Layer 5+ protocols

  • NFS Network File System
  • SMB Server Message Block (aka CIFS Common Internet FileSystem)

Layer 7 protocols

  • FTP File Transfer Protocol
  • HTTP HyperText Transport Protocol, used in the World Wide Web
  • POP3 Post Office Protocol Version 3
  • SNMP Simple Network Management Protocol
  • SMTP Simple Mail Transfer Protocol
  • Telnet, a remote terminal access protocol
  • Gnutella, a peer-to-peer file-swapping protocol
  • DNS Domain Name Service
  • SSH Secure SHell
  • IMAP Internet Message Access Protocol
  • NTP Network Time Protocol
  • Gopher, a precursor of web search engines
  • Finger, which gives user profile information
  • NNTP News Network Transfer Protocol
  • LDAP Lightweight Directory Access Protocol
  • DHCP Dynamic Host Configuration Protocol
  • IRC Internet Relay Chat
  • Jabber, an instant-messenging protocol
  • WebDAV Web Distributed Authoring and Versioning
  • DICT Dictionary protocol
  • BACnet Building Automation and Control Network protocol

and secure versions of the above (as HTTPS, etc.)

See also

Protocol description languages

Other protocols mentioned in wikipedia



Last updated: 10-24-2004 05:10:45