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公开(公告)号：US07532624B2
公开(公告)日：2009-05-12
申请号：US11508240
申请日：2006-08-23
IPC分类号： H04L12/28
CPC分类号： H04L12/1881
摘要： When multicast distribution is performed on a network where a point-to-point connection is made between user terminals and a multicast router, the multicast router is protected from load due to response reports, join requests, or leave statements sent from the user terminals simultaneously. If the user terminals send response reports simultaneously, a Layer 2 switch disposed between the user terminals and the multicast router limits response reports sent to the multicast router. The Layer 2 switch prevents response reports sent from the same user terminal from being discarded consecutively, by sending a response report sent from the same user terminal to the multicast router 200 with priority in the next join confirmation event. If the user terminals send join requests or leave statements simultaneously, the Layer 2 switch limits the join requests or leave statements sent to the multicast router 200 in the same manner. The Layer 2 switch further enlarges a transmission buffer thereof at the multicast router side, so that the packets can be stored in the buffer.
摘要翻译： 当在用户终端和组播路由器之间进行点对点连接的网络上执行组播分发时，由于响应报告，加入请求或者从用户终端同时发送的离开语句，组播路由器受到保护而受到保护 。 如果用户终端同时发送响应报告，则设置在用户终端和组播路由器之间的二层交换机限制发送给组播路由器的响应报告。 第二层交换机防止从同一用户终端发送的响应报告被连续丢弃，通过在下一个加入确认事件中以优先级的方式发送从同一用户终端发送到组播路由器200的响应报告。 如果用户终端同时发送加入请求或离开语句，则二层交换机以相同的方式限制加入请求或发送到组播路由器200的语句。 二层交换机进一步放大了组播路由器侧的发送缓冲区，使得分组可以存储在缓冲器中。
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公开(公告)号：US20110122880A1
公开(公告)日：2011-05-26
申请号：US12943726
申请日：2010-11-10
IPC分类号： H04L12/56
CPC分类号： H04L65/1069 , H04L29/12367 , H04L29/12377 , H04L61/2514 , H04L61/2517 , H04L65/104 , H04L65/608
摘要： When streaming transfer of voice or image is performed using a real time streaming protocol (RTSP), streaming transfer of a high bit rate is enabled even in an environment of using network address port translation (NAPT) and network address translation-protocol translation (NAT-PT). When a SETUP message of RTSP is received, a port number having the same number of digits as a client port number notified by a client is assigned from a port number pool, and is registered in an NAPT table. The SETUP message is rewritten with the port number.
摘要翻译： 当使用实时流协议（RTSP）执行语音或图像的流传输时，即使在使用网络地址端口转换（NAPT）和网络地址转换协议转换（NAT）的环境中也能启用高比特率的流传输 -PT）。 当接收到RTSP的SETUP消息时，从端口号池分配与客户端通知的与客户机端口号相同数量的端口号，并将其登记在NAPT表中。 SETUP消息被重写为端口号。
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公开(公告)号：US20070165633A1
公开(公告)日：2007-07-19
申请号：US11508240
申请日：2006-08-23
IPC分类号： H04L12/56
CPC分类号： H04L12/1881
摘要： When multicast distribution is performed on a network where a point-to-point connection is made between user terminals and a multicast router, the multicast router is protected from load due to response reports, join requests, or leave statements sent from the user terminals simultaneously. If the user terminals send response reports simultaneously, a Layer 2 switch disposed between the user terminals and the multicast router limits response reports sent to the multicast router. The Layer 2 switch prevents response reports sent from the same user terminal from being discarded consecutively, by sending a response report sent from the same user terminal to the multicast router 200 with priority in the next join confirmation event. If the user terminals send join requests or leave statements simultaneously, the Layer 2 switch limits the join requests or leave statements sent to the multicast router 200 in the same manner. The Layer 2 switch further enlarges a transmission buffer thereof at the multicast router side, so that the packets can be stored in the buffer.
摘要翻译： 当在用户终端和组播路由器之间进行点对点连接的网络上执行组播分发时，由于响应报告，加入请求或者从用户终端同时发送的离开语句，组播路由器受到保护而受到保护 。 如果用户终端同时发送响应报告，则设置在用户终端和组播路由器之间的二层交换机限制发送给组播路由器的响应报告。 第二层交换机防止从同一用户终端发送的响应报告被连续丢弃，通过在下一个加入确认事件中以优先级的方式发送从同一用户终端发送到组播路由器200的响应报告。 如果用户终端同时发送加入请求或离开语句，则二层交换机以相同的方式限制加入请求或发送到组播路由器200的语句。 二层交换机进一步放大了组播路由器侧的发送缓冲区，使得分组可以存储在缓冲器中。
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公开(公告)号：US08462800B2
公开(公告)日：2013-06-11
申请号：US12943726
申请日：2010-11-10
CPC分类号： H04L65/1069 , H04L29/12367 , H04L29/12377 , H04L61/2514 , H04L61/2517 , H04L65/104 , H04L65/608
摘要： When streaming transfer of voice or image is performed using a real time streaming protocol (RTSP), streaming transfer of a high bit rate is enabled even in an environment of using network address port translation (NAPT) and network address translation-protocol translation (NAT-PT). When a SETUP message of RTSP is received, a port number having the same number of digits as a client port number notified by a client is assigned from a port number pool, and is registered in an NAPT table. The SETUP message is rewritten with the port number.
摘要翻译： 当使用实时流协议（RTSP）执行语音或图像的流传输时，即使在使用网络地址端口转换（NAPT）和网络地址转换协议转换（NAT）的环境中也能启用高比特率的流传输 -PT）。 当接收到RTSP的SETUP消息时，从端口号池分配与客户端通知的与客户机端口号相同数量的端口号，并将其登记在NAPT表中。 SETUP消息用端口号重写。
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