文件名称:RFC3550
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本文描述RTP（real-time transport protocol），实时传输协议。RTP在多点传送（多播）或单点传送（单播）的网络服务上，提供端对端的网络传输功能，适合应用程序传输实时数据，如：音频，视频或者仿真数据。RTP没有为实时服务提供资源预留的功能，也不能保证QoS（服务质量）。数据传输功能由一个控制协议（RTCP）来扩展，通过扩展，可以用一种方式对数据传输进行监测控制，该协议（RTCP）可以升级到大型的多点传送（多播）网络，并提供最小限度的控制和鉴别功能。RTP和RTCP被设计成和下面的传输层和网络层无关。协议支持RTP标准的转换器和混合器的使用。
本文的大多数内容和旧版的RFC1889相同。在线路里传输的数据包格式没有改变，唯一的改变是使用协议的规则和控制算法。为了最小化传输，发送RTCP数据包时超过了设定的速率，而在这时，很多的参与者同时加入了一个会话，在这样的情况下，一个新加入到（用于计算的可升级的）计时器算法中的元素是最大的改变。
-This paper describes the RTP (real-time transport the protocol), real-time transport protocol. RTP in a multicast (multicast) or unicast (unicast) network services, providing end-to-end network transport functions suitable for applications transmit real-time data, such as: audio, video or simulation data. RTP does not provide for real-time service resource reservation function, we can not guarantee QoS (Quality of Service). Data transfer function is extended by a control protocol (RTCP), and by extension, a way of data transmission monitoring and control, the Protocol (RTCP) can upgrade to large multicast (Multicast) network, and provide a minimum limit control and identification functionality. RTP and RTCP are designed to be independent of the underlying transport and network layers. The protocol supports the use of RTP standards converter and mixer.
Most of the content of this article and previous versions of RFC1889. The line transmission packet format has not changed, only change
本文的大多数内容和旧版的RFC1889相同。在线路里传输的数据包格式没有改变，唯一的改变是使用协议的规则和控制算法。为了最小化传输，发送RTCP数据包时超过了设定的速率，而在这时，很多的参与者同时加入了一个会话，在这样的情况下，一个新加入到（用于计算的可升级的）计时器算法中的元素是最大的改变。
-This paper describes the RTP (real-time transport the protocol), real-time transport protocol. RTP in a multicast (multicast) or unicast (unicast) network services, providing end-to-end network transport functions suitable for applications transmit real-time data, such as: audio, video or simulation data. RTP does not provide for real-time service resource reservation function, we can not guarantee QoS (Quality of Service). Data transfer function is extended by a control protocol (RTCP), and by extension, a way of data transmission monitoring and control, the Protocol (RTCP) can upgrade to large multicast (Multicast) network, and provide a minimum limit control and identification functionality. RTP and RTCP are designed to be independent of the underlying transport and network layers. The protocol supports the use of RTP standards converter and mixer.
Most of the content of this article and previous versions of RFC1889. The line transmission packet format has not changed, only change
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RFC3550.doc