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    Method and apparatus for learning and switching frames in a distributed network switch
    11.
    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

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

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

    IPC: H04L1228

    CPC classification number: H04L49/3009 ,  H04L49/101 ,  H04L49/30 ,  H04L49/351 ,  H04L49/354 ,  H04L49/40

    Abstract: 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.

    Abstract translation: 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。

    Policy based configuration of interfaces in a virtual machine environment
    13.
    发明授权
    Policy based configuration of interfaces in a virtual machine environment 有权
    虚拟机环境中基于策略的接口配置

    公开(公告)号：US08639783B1

    公开(公告)日：2014-01-28

    申请号：US12584010

    申请日：2009-08-28

    Applicant: Mark Bakke ,  David Thompson ,  Timothy Kuik ,  Saravanakumar Rajendran

    Inventor： Mark Bakke ,  David Thompson ,  Timothy Kuik ,  Saravanakumar Rajendran

    IPC: G06F15/177 ,  G06F13/00

    CPC classification number: H04L45/16 ,  H04L41/0893 ,  H04L49/70

    Abstract: In one embodiment, an apparatus includes a port profile manager for receiving a port configuration policy and creating a port profile for the port configuration policy. The apparatus further includes a management interface for transmitting the port profile to a management station operable to receive input mapping the port profile to one or more interfaces associated with virtual machines. The port profile manager receives and stores the mapping input at the management station, for use in configuring the interfaces according to the port configuration policy. A method for policy based configuration of interfaces in a virtual machine environment is also disclosed.

    Abstract translation: 在一个实施例中，一种装置包括端口简档管理器，用于接收端口配置策略并为端口配置策略创建端口配置文件。 该装置还包括用于将端口简档发送到管理站的管理接口，管理站可操作以接收将端口简档映射到与虚拟机相关联的一个或多个接口的输入。 端口配置文件管理器在管理站接收并存储映射输入，用于根据端口配置策略配置接口。 还公开了一种用于虚拟机环境中的接口的基于策略的配置的方法。

    Virtual local area networks in a virtual machine environment
    14.
    发明申请
    Virtual local area networks in a virtual machine environment 审中-公开
    虚拟局域网在虚拟机环境中

    公开(公告)号：US20120131662A1

    公开(公告)日：2012-05-24

    申请号：US12927785

    申请日：2010-11-23

    Applicant: Timothy Kuik ,  David Thompson ,  Saravanakumar Rajendran

    Inventor： Timothy Kuik ,  David Thompson ,  Saravanakumar Rajendran

    IPC: G06F21/00 ,  G06F9/455

    CPC classification number: G06F21/44 ,  G06F9/45558 ,  G06F2009/45587 ,  G06F2009/45595 ,  G06F2221/2141 ,  G06F2221/2149 ,  H04L63/101

    Abstract: In one embodiment, a method includes identifying virtual machines operating at a network device and virtual local area networks associated with the virtual machines, creating an allowed list of virtual local area networks at the network device based on the virtual machines operating at the network device, and updating the allowed list in response to changes in the virtual machines at the network device. The network device is configured to forward traffic received from the virtual local area networks on the allowed list to a virtual switch at the network device, and drop traffic received from a virtual local area network not on the allowed list. An apparatus and logic are also disclosed.

    Abstract translation: 在一个实施例中，一种方法包括识别在网络设备上操作的虚拟机以及与虚拟机相关联的虚拟局域网，基于在网络设备上操作的虚拟机在网络设备上创建允许的虚拟局域网列表， 以及响应于网络设备上的虚拟机的变化来更新允许的列表。 网络设备被配置为将从允许的列表上的虚拟局域网接收的流量转发到网络设备上的虚拟交换机，并且丢弃从不在允许列表上的虚拟局域网接收的流量。 还公开了一种装置和逻辑。

    Performing message payload processing functions in a network element on behalf of an application
    16.
    发明授权
    Performing message payload processing functions in a network element on behalf of an application 有权
    代表应用程序在网络元素中执行消息有效负载处理功能

    公开(公告)号：US07987272B2

    公开(公告)日：2011-07-26

    申请号：US11005978

    申请日：2004-12-06

    Applicant: Sandeep Kumar ,  Tefcros Anthias ,  Ricky Ho ,  Saravanakumar Rajendran

    Inventor： Sandeep Kumar ,  Tefcros Anthias ,  Ricky Ho ,  Saravanakumar Rajendran

    IPC: G06F15/16

    CPC classification number: H04L51/00 ,  G06F9/546 ,  H04L69/08

    Abstract: A method is disclosed for performing message payload processing functions in a network element on behalf of an application. According to one aspect, a network element receives user-specified input that indicates a particular message classification. The network element also receives one or more data packets. Based on the data packets, the network element determines that an application layer message, which is collectively contained in payload portions of the data packets, matches the particular message classification. The network element processes at least a portion of the message by performing, on behalf of the application to which the message is directed, and relative to at least the portion of the message, one or more actions that are (a) specified in the user-specified input and (b) associated with the particular message classification.

    Abstract translation: 公开了一种代表应用程序在网络元件中执行消息有效载荷处理功能的方法。 根据一个方面，网络元件接收指示特定消息分类的用户指定的输入。 网元还接收一个或多个数据包。 基于数据分组，网元确定在数据分组的有效载荷部分中共同包含的应用层消息与特定消息分类相匹配。 网络元件通过代表消息所针对的应用程序并相对于消息的至少一部分执行一个或多个动作（a）在用户中指定的处理消息的至少一部分 指定的输入和（b）与特定消息分类相关联。

    Method and apparatus for updating and synchronizing forwarding tables in a distributed network switch
    20.
    发明授权
    Method and apparatus for updating and synchronizing forwarding tables in a distributed network switch 有权
    用于在分布式网络交换机中更新和同步转发表的方法和装置

    公开(公告)号：US06735198B1

    公开(公告)日：2004-05-11

    申请号：US09469062

    申请日：1999-12-21

    Applicant: Thomas J. Edsall ,  Herman Levenson ,  Claudette Lucille Surma ,  Ajit Sanzgiri ,  Saravanakumar Rajendran ,  Rong-Lung Lue ,  Tuan Thanh Nguyen

    Inventor： Thomas J. Edsall ,  Herman Levenson ,  Claudette Lucille Surma ,  Ajit Sanzgiri ,  Saravanakumar Rajendran ,  Rong-Lung Lue ,  Tuan Thanh Nguyen

    IPC: H04L1228

    CPC classification number: H04L45/54 ,  H04L49/3009 ,  H04L49/354 ,  H04L49/602

    Abstract: A mechanism and technique updates and synchronizes forwarding tables contained on line cards that are interconnected by a switch fabric of a distributed network switch. The network switch is preferably a L3 or L4 switch comprising a plurality of forwarding engines distributed among the line cards. Each forwarding engine has an associated forwarding table, which preferably includes a L2 portion and L3/L4 portions. The L2 portion of the table is used to execute forwarding decision operations for frames forwarded among ports of the line cards, whereas the L3/L4 portions of the table are used to execute shortcut and forwarding operations for frames routed among the ports. The mechanism comprises a media access control (MAC) notification (MN) frame for updating and synchronizing the location of a destination port stored in the L2 portions of the forwarding tables.

    Abstract translation: 机制和技术更新并同步包含在由分布式网络交换机的交换结构互连的线路卡上的转发表。 网络交换机优选地是包括分配在线路卡之间的多个转发引擎的L3或L4交换机。 每个转发引擎具有相关联的转发表，其优选地包括L2部分和L3 / L4部分。 表的L2部分用于对线路卡端口之间转发的帧执行转发决策操作，而表的L3 / L4部分用于对端口之间路由的帧执行快捷和转发操作。 该机制包括用于更新和同步存储在转发表的L2部分中的目的地端口的位置的媒体访问控制（MAC）通知（MN）帧。

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