Broadband switching network with automatic bandwidth allocation in
response to data cell detection
    1.
    发明授权
    Broadband switching network with automatic bandwidth allocation in response to data cell detection 失效
    宽带交换网络具有响应数据信元检测的自动带宽分配

    公开(公告)号:US5784358A

    公开(公告)日:1998-07-21

    申请号:US619653

    申请日:1996-03-22

    摘要: A broadband switching system and method switches asynchronously transferred cells of data using a dynamic bandwidth controller to control application of data cells from a number of transmitting end systems to an input port of the system. The dynamic bandwidth controller provides cell buffering from each source and controls output of data cells to the system according to a current cell rate assigned to cells from the respective end system. When an end system begins transmitting data cells, the controller detects the presence of incoming cells and requests bandwidth from a connection admission control forming part of the system. A default cell rate is provided for the end system so that transmission can continue until an appropriate bandwidth is allocated. The controller contains a buffer for buffering cells in this situation. Once appropriate bandwidth has been allocated, cell rate advice information from the connection admission control is fed back to the data bandwidth controller and thence to the transmitting end system to prevent transmission of cells at too high a rate for the available bandwidth.

    摘要翻译: PCT No.PCT / GB95 / 00502 Sec。 371日期:1996年3月22日 102(e)1996年3月22日PCT 1995年3月8日PCT公布。 公开号WO95 / 24812 PCT 日期1995年9月14日宽带交换系统和方法使用动态带宽控制器切换异步传输的数据单元,以控制从多个发送端系统到系统的输入端口的数据单元的应用。 动态带宽控制器从每个源提供信元缓冲,并且根据分配给相应终端系统的小区的当前信元速率来控制数据信元到系统的输出。 当终端系统开始发送数据单元时,控制器检测入站的存在,并从构成系统一部分的连接许可控制中请求带宽。 为终端系统提供默认单元速率,以便传输可以继续,直到分配适当的带宽。 在这种情况下,控制器包含缓冲单元的缓冲区。 一旦已经分配了适当的带宽,来自连接许可控制的信元速率建议信息被反馈给数据带宽控制器,并且因此被反馈到发送端系统,以防止以可用带宽太高的速率传输小区。