Real Time Protocol (Rtp)

RTP

By:

Net320

Professor:

RTP

What is RTP (Real-time Transport Protocol)? The RTP is a simple way of sending and receiving encoded video, audio, and data in connectionless network sessions. It provides headers that give VoIP systems an easy way of selecting between multiple sessions on the same host machine. Throughout this paper, I will illustrate what the real-time transport protocol is, why it is used in transporting data, and some of the RFCs that are relevant to the RTP.

The RTP “provides end-to-end network transport functions suitable for applications transmitting real-time data, such as audio, video or simulation data, over multicast or unicast network services. RTP does not address resource reservation and does not guarantee quality-of-service for real-time services” (RFC 3550, 2003). In other words, it provides various forms of data a means to get to and from its source and destination. However, it does not provide any means of quality of service; this is likely because it is transported via UDP datagram which means there is no quality control because UDP is unreliable.

RTP has a few different uses – two of which aren’t directly related to telephony services. For example, RTP is also used in streaming audio and video for various purposes. Some of these purposes include entertainment, such as Netflix, Amazon Instant Video, online gaming, etc. Other purposes could be used for education, such as our classroom environment. We have three streaming videos going on simultaneously. Without technologies like RTP, we wouldn’t be able have these kinds of transmissions. However, RTP isn’t able to all of this alone; there has to be some form of control in order for the technology to work. This is where RTCP (Real-Time Transport Control Protocol) comes into play. This protocol controls RTP’s media sessions and all of the collection of all of the data that is relevant to those sessions. Without RTCP, data would be getting lost in the void somewhere....