[提问] How is source port for HTTP determined? Is there ever collision in NAT? I know that when a HTTP request is made, packets are sent from a seemingly-random high-numbered port (e.g. 4575) on the client to port 80 on the server. Then the server se
RTP 参考文档 RFC3550/RFC3551 Real-time Transport Protocol)是用于Internet上针对多媒体数据流的一种传输层协议.RTP协议详细说明了在互联网上传递音频和视频的标准数据包格式.RTP协议常用于流媒体系统(配合RTCP协议),视频会议和一键通(Push to Talk)系统(配合H.323或SIP),使它成为IP电话产业的技术基础.RTP协议和RTP控制协议RTCP一起使用,而且它是建立在UDP协议上的. RTP 本身并没有提