公开(公告)号：US20050122972A1

公开(公告)日：2005-06-09

申请号：US10968460

申请日：2004-10-18

申请人： Frederick Gruner ,  Gaurav Singh ,  Elango Ganesan ,  Samir Vora ,  Christopher Eccles ,  Brian Wai Yang

发明人： Frederick Gruner ,  Gaurav Singh ,  Elango Ganesan ,  Samir Vora ,  Christopher Eccles ,  Brian Wai Yang

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L29/12

CPC分类号： H04L29/12801 ,  H04L29/12009 ,  H04L45/00 ,  H04L45/7457 ,  H04L61/6004

摘要： A prefix matching apparatus for directing information to a destination port includes a memory configured to store a piece of data including an address and a plurality of levels each including a plurality of memory locations, the levels each representing a unique address space. A controller is coupled to the memory and to the plurality of levels, and is configured to read the data address and to direct the data to the next level associated with a unique address space associated with the data address. In one embodiment, the controller is configured to match the data address prefix to a plurality of addresses associated with the unique address spaces. Advantages of the invention include fast switch decisions and low switch latency.

摘要翻译： 用于将信息引导到目的地端口的前缀匹配装置包括被配置为存储包括地址和多个级别的数据的存储器，每个级别包括多个存储器位置，每个级别表示唯一的地址空间。 控制器耦合到存储器和多个电平，并且被配置为读取数据地址并将数据引导到与与数据地址相关联的唯一地址空间相关联的下一级。 在一个实施例中，控制器被配置为将数据地址前缀匹配到与唯一地址空间相关联的多个地址。 本发明的优点包括快速切换决定和低开关等待时间。