| The five-layer TCP/IP model | | 5. Application layer | | DHCP • DNS • FTP • Gopher • HTTP • IMAP4 • IRC • NNTP • XMPP • MIME • POP3 • SIP • SMTP • SNMP • SSH • TELNET • RPC • RTP • RTCP • TLS/SSL • SDP • SOAP • … The TCP/IP model or Internet reference model, sometimes called the DoD model (DoD, Department of Defense), ARPANET reference model, is a layered abstract description for communications and computer network protocol design. ...
The application layer is the seventh level of the seven-layer OSI model. ...
(DHCP) is a set of rules used by a communications device such as a computer, router or network adapter to allow the device to request and obtain an IP address from a server which has a list of addresses available for assignment. ...
On the Internet, the Domain Name System (DNS) stores and associates many types of information with domain names; most importantly, it serves as the phone book for the internet, translating human-friendly domain names and computer hostnames, e. ...
âFTPâ redirects here. ...
Gopher is a distributed document search and retrieval network protocol designed for the Internet. ...
Hypertext Transfer Protocol (HTTP) is a method used to transfer or convey information on the World Wide Web. ...
The Internet Message Access Protocol (commonly known as IMAP or IMAP4, and previously called Internet Mail Access Protocol, Interactive Mail Access Protocol (RFC 1064), and Interim Mail Access Protocol [1] ) is an application layer Internet protocol that allows a local client to access e-mail on a remote server. ...
Internet Relay Chat (IRC) is a form of real-time Internet chat or synchronous conferencing. ...
The Network News Transfer Protocol or NNTP is an Internet application protocol used primarily for reading and posting Usenet articles, as well as transferring news among news servers. ...
Extensible Messaging and Presence Protocol, or XMPP, is an open, XML-based protocol for near real-time extensible messaging and presence events. ...
Multipurpose Internet Mail Extensions (MIME) is an Internet Standard that extends the format of e-mail to support: text in character sets other than US-ASCII; non-text attachments; multi-part message bodies; and header information in non-ASCII character sets. ...
In computing, local e-mail clients use the Post Office Protocol version 3 (POP3), an application-layer Internet standard protocol, to retrieve e-mail from a remote server over a TCP/IP connection. ...
The Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol for creating, modifying, and terminating sessions with one or more participants. ...
Simple Mail Transfer Protocol (SMTP) is the de facto standard for e-mail transmissions across the Internet. ...
The simple network management protocol (SNMP) forms part of the internet protocol suite as defined by the Internet Engineering Task Force (IETF). ...
Secure Shell or SSH is a network protocol that allows data to be exchanged over a secure channel between two computers. ...
For the packet switched network, see Telenet. ...
Remote procedure call (RPC) is a protocol that allows a computer program running on one computer to cause a subroutine on another computer to be executed without the programmer explicitly coding the details for this interaction. ...
The Real-time Transport Protocol (or RTP) defines a standardized packet format for delivering audio and video over the Internet. ...
This article or section does not adequately cite its references or sources. ...
Session Description Protocol (SDP), is a format for describing streaming media initialization parameters. ...
This article is about the computer protocol. ...
| | 4. Transport layer | | TCP • UDP • DCCP • SCTP • RSVP • GTP • … In computing and telecommunications, the transport layer is layer four of the seven layer OSI model. ...
The Transmission Control Protocol (TCP) is one of the core protocols of the Internet protocol suite, often simply referred to as TCP/IP. Using TCP, applications on networked hosts can create connections to one another, over which they can exchange streams of data using Stream Sockets. ...
The User Datagram Protocol (UDP) is one of the core protocols of the Internet protocol suite. ...
The Datagram Congestion Control Protocol (DCCP) is a message-oriented transport layer protocol that is currently under development in the IETF. Applications that might make use of DCCP include those with timingconstraints on the delivery of data such that reliable in-order delivery, when combined with congestion control, is likely...
In the field of computer networking, the IETF Signaling Transport (SIGTRAN) working group defined the Stream Control Transmission Protocol (SCTP) as a transport layer protocol in 2000. ...
The Resource ReSerVation Protocol (RSVP), described in RFC 2205, is a transport layer protocol designed to reserve resources across a network for an integrated services Internet. ...
GPRS Tunneling Protocol (or GTP) is an IP based protocol used within GSM and UMTS networks. ...
| | 3. Internet layer | | IP (IPv4 • IPv6) • IGMP • ICMP • BGP • RIP • OSPF • ISIS • IPsec • ARP • RARP • … The network layer is level three of the seven level OSI model. ...
The Internet Protocol (IP) is a data-oriented protocol used for communicating data across a packet-switched internetwork. ...
Internet Protocol version 4 is the fourth iteration of the Internet Protocol (IP) and it is the first version of the protocol to be widely deployed. ...
Internet Protocol version 6 (IPv6) is a network layer protocol for packet-switched internetworks. ...
The Internet Group Management Protocol is a communications protocol used to manage the membership of Internet Protocol multicast groups. ...
The Internet Control Message Protocol (ICMP) is one of the core protocols of the Internet protocol suite. ...
The Border Gateway Protocol (BGP) is the core routing protocol of the Internet. ...
This article is chiefly about the Routing Information Protocol for IPv4 and IPv6. ...
The Open Shortest Path First (OSPF) protocol is a link-state, hierarchical interior gateway protocol (IGP) for network routing. ...
Intermediate system to intermediate system (IS-IS), is an IGP routing protocol originally designed for CLNS as part of the OSI protocol stack and described in ISO 10589 . ...
IPsec (IP security) is a suite of protocols for securing Internet Protocol (IP) communications by authenticating and/or encrypting each IP packet in a data stream. ...
In computer networking, the Address Resolution Protocol (ARP) is the method for finding a hosts hardware address when only its network layer address is known. ...
Reverse address resolution protocol (RARP) is a protocol used to resolve an IP address from a given hardware address (such as an Ethernet address). ...
| | 2. Data link layer | | 802.11 • ATM • DTM • Ethernet • FDDI • Frame Relay • GPRS • EVDO • HSPA • HDLC • PPP • L2TP • PPTP • … The data link layer is layer two of the seven-layer OSI model as well as of the five-layer TCP/IP reference model. ...
IEEE 802. ...
Asynchronous Transfer Mode (ATM) is a cell relay, Circuit switching network and data link layer protocol which encodes data traffic into small (53 bytes; 48 bytes of data and 5 bytes of header information) fixed-sized cells. ...
Dynamic synchronous Transfer Mode , or DTM for short, is a network protocol. ...
Ethernet is a large, diverse family of frame-based computer networking technologies that operates at many speeds for local area networks (LANs). ...
In computer networking, fiber-distributed data interface (FDDI) is a standard for data transmission in a local area network that can extend in range up to 200 km (124 miles). ...
In the context of computer networking, frame relay (also found written as frame-relay) consists of an efficient data transmission technique used to send digital information quickly and cheaply in a relay of frames to one or many destinations from one or many end-points. ...
General Packet Radio Service (GPRS) is a mobile data service available to users of GSM and IS-136 mobile phones. ...
Evolution-Data Optimized or Evolution-Data only, abbreviated as EV-DO or EVDO and often EV, is one telecommunications standard for the wireless transmission of data through radio signals, typically for broadband Internet access. ...
High-Speed Packet Access (HSPA) is a collection of mobile telephony protocols that extend and improve the performance of existing UMTS protocols. ...
High-Level Data Link Control (HDLC) is a bit-oriented synchronous data link layer protocol developed by the International Organization for Standardization (ISO). ...
In computing, the Point-to-Point Protocol, or PPP, is commonly used to establish a direct connection between two nodes. ...
In computer networking, the Layer 2 Tunneling Protocol (L2TP) is a tunneling protocol used to support virtual private networks (VPNs). ...
The Point-to-Point Tunneling Protocol (PPTP) is a method for implementing virtual private networks. ...
| | 1. Physical layer | | Ethernet physical layer • ISDN • Modems • PLC • SONET/SDH • G.709 • … This article or section does not adequately cite its references or sources. ...
IEEE photograph of a diagram with the original terms for describing Ethernet drawn by Robert M. Metcalfe around 1976. ...
// Integrated Services Digital Network (ISDN) is a circuit-switched telephone network system, designed to allow digital transmission of voice and data over ordinary telephone copper wires, resulting in better quality and higher speeds than that is available with the PSTN system. ...
A modem (from modulate and demodulate) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. ...
For other uses, see Power band. ...
It has been suggested that this article be split into articles entitled synchronous optical networking, SONET and SDH. (Discuss) Synchronous optical networking, is a method for communicating digital information using lasers or light-emitting diodes (LEDs) over optical fiber. ...
There are very few or no other articles that link to this one. ...
| | This box: view • talk • edit | RTP Control Protocol (RTCP) is a sister protocol of the Real-time Transport Protocol (RTP). It is defined in RFC 3550 (which obsoletes RFC 1889). The Real-time Transport Protocol (or RTP) defines a standardized packet format for delivering audio and video over the Internet. ...
RTCP stands for Real-time Transport Control Protocol, provides out-of-band control information for an RTP flow. It partners RTP in the delivery and packaging of multimedia data, but does not transport any data itself. It is used periodically to transmit control packets to participants in a streaming multimedia session. The primary function of RTCP is to provide feedback on the quality of service being provided by RTP. In the fields of packet-switched networks and computer networking, the traffic engineering term Quality of Service (QoS) refers to control mechanisms that can provide different priority to different users or data flows, or guarantee a certain level of performance to a data flow in accordance with requests from the...
It gathers statistics on a media connection and information such as bytes sent, packets sent, lost packets, jitter, feedback and round trip delay. An application may use this information to increase the quality of service perhaps by limiting flow, or maybe using a low compression codec instead of a high compression codec. RTCP is used for QoS reporting. In telecommunication, jitter is an abrupt and unwanted variation of one or more signal characteristics, such as the interval between successive pulses, the amplitude of successive cycles, or the frequency or phase of successive cycles. ...
In telecommunications, the term round-trip delay time or round-trip time (RTT) has the following meanings: The elapsed time for transit of a signal over a closed circuit, or time elapsed for a message to a remote place and back again. ...
In the fields of packet-switched networks and computer networking, the traffic engineering term Quality of Service (QoS) refers to control mechanisms that can provide different priority to different users or data flows, or guarantee a certain level of performance to a data flow in accordance with requests from the...
There are several type of RTCP packets: Sender report packet, Receiver report packet, Source Description RTCP Packet, Goodbye RTCP Packet and Application Specific RTCP packets. RTCP itself does not provide any flow encryption or authentication means. SRTCP protocol can be used for that purpose. The Secure Real-time Transport Protocol (or SRTP) defines a profile of RTP (Real-time Transport Protocol), intended to provide encryption, message authentication and integrity, and replay protection to the RTP data in both unicast and multicast applications. ...
Problems and potential further development of RTCP The Real-time Transport Control Protocol (RTCP) has some issues with deployment on large scale applications (e.g. IPTV) which would inflict very long delay between RTCP reports. This could make the receiver's reporting messages and its evaluation by sender inaccurate to a real state of a session. Due of this there are some methods how to deal with this issue. These are filtering, biasing and hierarchical aggregation. IPTV (Internet Protocol Television) is a system where a digital television service is delivered by using Internet Protocol over a network infrastructure, which may include delivery by a broadband connection. ...
- Described in more detail by Realtime control protocol and its improvements for Internet Protocol Television
Linux/UNIX client source code SSM network In the SSM network it is needed that each node supports SSM protocol except of: - last-hop router (before receivers)
- source (sender)
See also The Real-time Transport Protocol (or RTP) defines a standardized packet format for delivering audio and video over the Internet. ...
Streaming media is multimedia that is continuously received by, and normally displayed to, the end-user while it is being delivered by the provider. ...
In the fields of packet-switched networks and computer networking, the traffic engineering term Quality of Service (QoS) refers to control mechanisms that can provide different priority to different users or data flows, or guarantee a certain level of performance to a data flow in accordance with requests from the...
External links - Optimization of Large-Scale RTCP Feedback Reporting in Fixed and Mobile Networks
- Realtime control protocol and its improvements for Internet Protocol Television
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