Method and apparatus for applying quality of service to multicast streams transmitted in a cable network
    1.
    发明授权
    Method and apparatus for applying quality of service to multicast streams transmitted in a cable network 有权
    用于将有效网络中传输的多播流应用服务质量的方法和装置

    公开(公告)号:US07408877B2

    公开(公告)日:2008-08-05

    申请号:US11327006

    申请日:2006-01-06

    IPC分类号: H04L12/26

    CPC分类号: H04L12/18

    摘要: A method and apparatus for providing quality of service parameters for transmissions of multicast streams on a cable network is provided. A cable network headend connects an external network to a hybrid fiber coax or cable network. The cable network headend maintains a table of cable modems with entries associating each cable modem with one or more quality of service parameters. Virtual cable modem entries are created for multicast streams when indications of quality of service for multicast streams are received by the cable network headend. Multicast packets arriving at the cable network headend are processed using the stored quality of service parameters for the corresponding multicast stream. The multicast packets may then be transmitted, queued, or dropped depending on the specified parameters and traffic shaping or policing algorithms.

    摘要翻译: 提供了一种用于提供有线网络上的多播流传输的服务质量参数的方法和装置。 有线网络前端将外部网络连接到混合光纤同轴电缆或有线网络。 有线网络前端维护电缆调制解调器表,其中条目将每个电缆调制解调器与一个或多个服务质量参数相关联。 当有线网络头端接收到组播流的服务质量的指示时,为多播流创建虚拟电缆调制解调器条目。 使用所存储的相应组播流的服务质量参数来处理到达有线网络头端的多播包。 然后可以根据指定的参数和流量整形或管理算法来传输,排队或丢弃多播分组。

    Method and apparatus for applying quality of service to multicast streams transmitted in a cable network
    2.
    发明授权
    Method and apparatus for applying quality of service to multicast streams transmitted in a cable network 有权
    用于将有效网络中传输的多播流应用服务质量的方法和装置

    公开(公告)号:US07012891B1

    公开(公告)日:2006-03-14

    申请号:US09752885

    申请日:2000-12-28

    IPC分类号: H04L12/26

    CPC分类号: H04L12/18

    摘要: A method and apparatus for providing quality of service parameters for transmissions of multicast streams on a cable network is provided. A cable network headend connects an external network to a hybrid fiber coax or cable network. The cable network headend maintains a table of cable modems with entries associating each cable modem with one or more quality of service parameters. Virtual cable modem entries are created for multicast streams when indications of quality of service for multicast streams are received by the cable network headend. Multicast packets arriving at the cable network headend are processed using the stored quality of service parameters for the corresponding multicast stream. The multicast packets may then be transmitted, queued, or dropped depending on the specified parameters and traffic shaping or policing algorithms.

    摘要翻译: 提供了一种用于提供有线网络上的多播流传输的服务质量参数的方法和装置。 有线网络前端将外部网络连接到混合光纤同轴电缆或有线网络。 有线网络前端维护电缆调制解调器表,其中条目将每个电缆调制解调器与一个或多个服务质量参数相关联。 当有线网络头端接收到组播流的服务质量的指示时,为多播流创建虚拟电缆调制解调器条目。 使用所存储的相应组播流的服务质量参数来处理到达有线网络头端的多播包。 然后可以根据指定的参数和流量整形或管理算法来传输,排队或丢弃多播分组。

    Network traffic shaping using time-based queues
    3.
    发明授权
    Network traffic shaping using time-based queues 有权
    使用基于时间的队列进行网络流量整形

    公开(公告)号:US07392279B1

    公开(公告)日:2008-06-24

    申请号:US09276917

    申请日:1999-03-26

    IPC分类号: G06F15/16

    摘要: A time-based buffering system buffers data based upon how long the data should be held in order to comply with a traffic shaping policy. The data's source or destination need not be considered in determining where to buffer the data. The time-based buffering system includes a collection of time-based queues, each of which has a different time to dequeue. The system controlling traffic shaping determines how long a particular piece of data should be buffered (a “traffic shaping delay”) until it can be put on the network. Then, based upon that length of time, the system chooses one of the time-based of queues in which to buffer the data. That chosen queue has a dequeuing time that matches the traffic shaping delay. After the chosen queue dequeues its contents (at the specified time), it assumes a new dequeing time and is free to buffer new data that must be delayed by a time matching the new dequeuing time.

    摘要翻译: 基于时间的缓冲系统基于数据应该持续多长时间来缓冲数据,以符合流量整形策略。 在确定数据的缓冲位置时,不必考虑数据的来源或目的地。 基于时间的缓冲系统包括基于时间的队列的集合,每个队列具有不同的出队时间。 控制流量整形的系统确定特定数据片段应该被缓冲多长时间(“流量整形延迟”),直到它可以放在网络上。 然后,基于该时间长度,系统选择基于时间的队列之一来缓冲数据。 该选择的队列具有匹配流量整形延迟的出队时间。 在所选择的队列出现其内容(在指定的时间)之后,它假定新的出发时间,并且可以缓冲新数据,该数据必须被延迟一段时间以匹配新的出队时间。