In this article i describe the RTCP Real Time Transport Control Protocol in computer networking for CCNA exam. The RTCP provides the facility to broadcast the transmission transport of multimedia over the computer network. The RTP Real Time Transport Protocol use unicast and multicast data services in the network to broadcast the multimedia data. Here the multimedia includes the audio and video data for example online video streaming. Real Time Transport Control Protocol was developed by the IETF to provide the audio video transport for video conferences over the internet. So when you make a video conference with any application on the internet actually you are using the RTP Real Time Transport Protocol in you network along with Real Time Transport Control Protocol.
RTCP works alongwith RTP protocol. It is possible to keep an eye on data delivery for large networks by using the Real Time Transport Control Protocol. Here monitoring is done to check the missing or lost data packets during the broadcasting of audio and video. Both protocols RTP and Real Time Transport Control Protocol work together but do not interfere with each other. Both protocols runs on different platforms. RTP runs on UDP by using SIP on the network. Real Time Transport Control Protocol works with Real-Time Protocol to monitor data delivery on large multicast networks. The purpose of monitoring delivery is to determine whether RTP is providing the required Quality of Service (QoS). RTCP is used in IPTV and VOIP, streaming media and video conferencing. RTCP was originally defined in RFC 1889 later defines as RFC 3550.
RTCP Real Time Transport Control Protocol in brief
RTCP Real Time Transport Control Protocol allow the RTP protocol to manage the real time transmission of audio video data over the computer network by using TCP/IP protocols. RTP provides the data delivery speedily than TCP communication and ignore of any data loss during the transmission with the help of RTCP Real Time Transport Control Protocol. RTP Real Time Transport Protocol works with Real Time Transport Control Protocol to provide the multiple streams of media synchronization. The VOIP is the latest technology which use RTP protocol on the internet. The other applications uses the RTP Real Time Transport Protocol are entertainment and conferencing online. The user can see the online videos streaming and also can play online game or conference on internet via using the RTP Real Time Transport Protocol.
RTCP Real Time Transport Control Protocol explained
RTCP Real time Transport Control Protocol is an application layer protocol. RTCP works together with RTP protocol. Real time Transport Control Protocol belongs to a TCP/IP network model suite. Real time Transport Control Protocol RTCP is responsible to check the quality of data transporting audio and video over IP networks. RTCP protocol send control packets from one client to another client in a call. Real time Transport Control Protocol provides the QoS of service provided by RTP protocol.
RTCP is a component of RTP Real Time Transport Protocol. RTP protocol is used for VOIP communication over the IP network. RTP works on even port groups of UDP protocol. Concerned RTCP protocol works on next relate odd port number. For example, if a RTP data sent on port number 1622 concerned RTCP port will be 1623 for the same data packets. Real time Transport Control Protocol transports the information of packet counts, jitter, Quality of service etc. These information are helpful for different codecs at application layer.
Function of RTCP Real time Transport Control Protocol
RTCP protocol use different type of packets to provides feedback on the QoS of data distribution. The packets used by RTCP protocol are sender report, receiver report, source description, application functions etc. The data transfer rate is depending on the participants. More the participants mean an individual source may send packets less frequently.
RTCP Real time Transport Control Protocol provides the information of streaming media on RTP protocol. RTCP Real time Transport Control Protocol monitors the quality of data transferred. The starting and end of a packet. RTCP uses maximum 5% bandwidth of the whole media bandwidth. RTCP itself does not provide any flow encryption or authentication methods to any client.
Basic concepts of Real time Transport Control Protocol
RTCP runs over UDP User Datagram Protocol. The Real time Transport Control Protocol is supplementary to RTP protocol. RTCP protocol become useful for VOIP on a TCP/IP network.
RTP only transfers the media and voice from one client to another. RTCP protocol monitor and check the QoS of the data transferred from one client to another client. Both protocols work independently in a TCP/IP network. Data rebuild done according to the header information of RTP packets.
In this article I describe the Real Time Transport Control Protocol RTCP in computer network for CCNA Exam. I hope you found this article helpful. For any query or suggestions you may drop a comment below or contact us. Your suggestions are always welcome by us.
