利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

32 条记录 (耗时 0.019 秒)

    Method and apparatus for learning and switching frames in a distributed network switch
    6.
    发明授权
    Method and apparatus for learning and switching frames in a distributed network switch 有权
    分布式网络交换机学习和切换帧的方法和装置

    公开(公告)号：US06807172B1

    公开(公告)日：2004-10-19

    申请号：US09469459

    申请日：1999-12-21

    申请人： Herman Levenson ,  Jonathan Davar ,  Ajit Sanzgiri ,  Thomas J. Edsall ,  Chingwei Chang ,  Rong-Lung Lue ,  Saravanakumar Rajendran ,  Tuan Thanh Nguyen ,  Claudette Lucille Surma

    发明人： Herman Levenson ,  Jonathan Davar ,  Ajit Sanzgiri ,  Thomas J. Edsall ,  Chingwei Chang ,  Rong-Lung Lue ,  Saravanakumar Rajendran ,  Tuan Thanh Nguyen ,  Claudette Lucille Surma

    IPC分类号： H04L1228

    CPC分类号： H04L49/3009 ,  H04L49/101 ,  H04L49/30 ,  H04L49/351 ,  H04L49/354 ,  H04L49/40

    摘要： A technique enables learning and switching of frames between line cards that are interconnected by a switch fabric of a distributed network switch. The network switch comprises a router and a plurality of forwarding engines, each having an associated forwarding table. The distributed learning and switching technique configures (i) the router to issue an extra copy of a routed frame to an ingress card having a port attached to the source of the frame; (ii) the router to ensure that the contents of a source index field of the routed frame header indicate that the frame originated from the ingress card; (iii) the router to assert a shortcut bit in the header of the routed frame; (iv) a forwarding engine on an egress card having a port attached to the destination of the frame to generate and issue a media access control notification frame to the ingress card and (v) a forwarding engine on the ingress card to mark an established entry in a layer 2 (L2) portion of its forwarding table as ineligible for normal L2 aging policies.

    摘要翻译： 一种技术能够在由分布式网络交换机的交换结构互连的线路卡之间学习和切换帧。 网络交换机包括路由器和多个转发引擎，每个转发引擎具有相关联的转发表。 分布式学习和切换技术配置（i）路由器向已经连接到帧的源的端口的入口卡发布路由帧的额外副本; （ii）路由器，以确保路由帧头的源索引字段的内容指示帧来自入口卡; （iii）路由器在路由帧的头部中断言快捷位; （iv）在出口卡上的转发引擎，其具有连接到帧的目的地的端口，以生成并向入口卡发布媒体访问控制通知帧，以及（v）在入口卡上的转发引擎来标记已建立的条目 在其转发表的第2层（L2）部分不符合正常的L2老化策略。