公开(公告)号：US20150071283A1

公开(公告)日：2015-03-12

申请号：US14025749

申请日：2013-09-12

Applicant: Cisco Systems, INC. ,  STMICROELECTRONICS, INC.

Inventor： Maynard HAMMOND ,  Charaf HANNA ,  Zhifang J. NI ,  Andrew WHITLOW ,  Benjamin DARBY ,  Gale SHALLOW

IPC: H04L12/743 ,  H04L12/761 ,  H04L12/56

CPC classification number: H04L45/7457 ,  H04L12/2801 ,  H04L45/16 ,  H04L45/741

Abstract: A filter in a DOCSIS bridge performs IP Filtering of incoming Ethernet packets in hardware. The filter includes a parser circuit which, in hardware, parses each of the incoming Ethernet packets and then utilizes the parsed information in combination with a content-addressable memory (CAM) that stores filtering information, to filter and route the incoming Ethernet packets. Detailed statistical data may also be generated to provide information on the type of filtering being performed by the DOCSIS bridge.

Abstract translation: DOCSIS网桥中的一个过滤器在硬件中执行传入的以太网数据包的IP过滤。 该过滤器包括解析器电路，其在硬件中解析每个进入的以太网分组，然后将解析的信息与存储过滤信息的内容寻址存储器（CAM）结合使用，以过滤和路由输入的以太网分组。 还可以生成详细的统计数据以提供关于由DOCSIS桥执行的过滤类型的信息。