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    System and method for a multi-layer network element
    11.
    发明授权
    System and method for a multi-layer network element 失效
    多层网元的系统和方法

    公开(公告)号：US6088356A

    公开(公告)日：2000-07-11

    申请号：US884244

    申请日：1997-06-30

    Applicant: Ariel Hendel ,  Leo A. Hejza ,  Shree Murthy ,  Louise Yeung

    Inventor： Ariel Hendel ,  Leo A. Hejza ,  Shree Murthy ,  Louise Yeung

    IPC: H04L12/46 ,  H04L12/56

    CPC classification number: H04L49/602 ,  H04L49/205 ,  H04L49/3009 ,  H04L49/351

    Abstract: A multi-layer network element for forwarding received packets from an input port to one or more output ports. The packet is examined to look for first and second forwarding information. A packet is also assigned to a class and provided with default packet forwarding information. An associative memory is searched once for each type of information. The results from the two searches are combined with the default packet forwarding information to forward the packet to the appropriate one or more output ports. In some instances, the results of the first search dominate the forwarding decision, in other, the results of the second search dominate the forwarding decision, and in still other instances, the default information dominates.

    Abstract translation: 一种用于将接收的分组从输入端口转发到一个或多个输出端口的多层网元。 检查数据包以查找第一和第二转发信息。 分组也被分配给一个类，并提供了默认的分组转发信息。 对于每种类型的信息搜索一次联想记忆。 将两次搜索的结果与默认分组转发信息相结合，将分组转发到适当的一个或多个输出端口。 在某些情况下，首次搜索的结果主导转发决策，另一方面，第二次搜索的结果主导转发决策，而在其他情况下，默认信息占主导地位。

    Method and system for providing safe dynamic link redundancy in a data network
    13.
    发明授权
    Method and system for providing safe dynamic link redundancy in a data network 有权
    在数据网络中提供安全的动态链路冗余的方法和系统

    公开(公告)号：US08644137B2

    公开(公告)日：2014-02-04

    申请号：US11353312

    申请日：2006-02-13

    Applicant: Robert Andrews ,  Navindra Yadav ,  Shree Murthy ,  Gnanaprakasam Pandian ,  Murali Duvvury ,  Sudhakar Padavala

    Inventor： Robert Andrews ,  Navindra Yadav ,  Shree Murthy ,  Gnanaprakasam Pandian ,  Murali Duvvury ,  Sudhakar Padavala

    IPC: H04L12/26

    CPC classification number: H04L45/18 ,  H04L45/00 ,  H04L45/02 ,  H04L45/22

    Abstract: Method and system for providing dynamic configuration of link redundancy in data network based on detection of dynamic changes in the network topology including the steps of detecting data network topology, determining a number of data paths from a node in the data network topology to each of a respective pair of peer nodes coupled to the node by a corresponding interface, determining a data path in the data network topology between the peer nodes, calculating a set of nodes reachable via each interface coupled to the node and the respective peer node in the data network topology, and comparing the set of calculated nodes is provided.

    Abstract translation: 基于检测网络拓扑中的动态变化来提供数据网络中的链路冗余的动态配置的方法和系统，包括检测数据网络拓扑，确定从数据网络拓扑中的节点到数据网络拓扑中的每一个的数据路径 相应的一对对等节点通过对应的接口耦合到节点，确定对等节点之间的数据网络拓扑中的数据路径，计算经由耦合到该节点的每个接口和数据网络中的相应对等节点可到达的一组节点 提供拓扑结构，并比较计算出的节点集。

    Flow resiliency
    15.
    发明授权
    Flow resiliency 有权
    流动弹性

    公开(公告)号：US08189588B2

    公开(公告)日：2012-05-29

    申请号：US12403906

    申请日：2009-03-13

    Applicant: Navindra Yadav ,  Shree Murthy ,  Vijayaraghavan Doraiswami ,  Peter Geoffrey Jones

    Inventor： Navindra Yadav ,  Shree Murthy ,  Vijayaraghavan Doraiswami ,  Peter Geoffrey Jones

    IPC: H04L12/56

    CPC classification number: H04L67/1095 ,  H04L45/00 ,  H04L45/24 ,  H04L45/28 ,  H04L69/28

    Abstract: In an example embodiment, packets for a selected flow are replicated and sent over one or more diverse paths, such as a primary path and at least one secondary path, to a destination switching device. At the destination switching device, one copy of the replicated packets is selected for delivery to the destination, and the remaining copies are discarded. In the event that packets are not received at the destination switching device due to loss of connection on the primary path or packets are not timely delivered due to congestion on the primary path, a different path may be selected as the primary path.

    Abstract translation: 在示例实施例中，用于所选流的分组被复制并通过一个或多个不同路径（诸如主路径和至少一个次要路径）发送到目的地交换设备。 在目的地交换设备处，选择复制的分组的一个副本以传送到目的地，并且剩余的副本被丢弃。 如果由于主路径上的连接丢失而在目的地交换设备处没有接收到分组，否则由于主路径上的拥塞而不能及时地传送分组，可以选择不同的路径作为主要路径。

    Service Insertion Architecture (SIA) in a Virtual Private Network (VPN) Aware Network
    17.
    发明申请
    Service Insertion Architecture (SIA) in a Virtual Private Network (VPN) Aware Network 审中-公开
    虚拟专用网（VPN）感知网络中的服务插入架构（SIA）

    公开(公告)号：US20100254385A1

    公开(公告)日：2010-10-07

    申请号：US12419569

    申请日：2009-04-07

    Applicant: Govind Prasad Sharma ,  Mohamed Khalid ,  Shree Murthy ,  Rajiv Asati

    Inventor： Govind Prasad Sharma ,  Mohamed Khalid ,  Shree Murthy ,  Rajiv Asati

    IPC: H04L12/56 ,  H04L12/54

    CPC classification number: H04L45/00 ,  H04L12/4633 ,  H04L12/4641

    Abstract: Systems, methods, and other embodiments associated with interworking a VPN and an SIA are described. One example apparatus includes a mapping data store to store a mapping between two logical groups of network devices having separate forwarding planes that are at least partially incompatible. The apparatus includes an instantiation logic to establish the mapping based on unique identifiers associated with the logical groups. The apparatus also includes an encoding logic to implicitly encode information to identify the first logical group in a packet received from the first logical group, provided to the second logical group, and then provided back to the first logical group. The implicitly encoded information is configured to be used without modification by the forwarding plane associated with the second logical group and is configured to facilitate a member of the second logical group resolving the mapping.

    Abstract translation: 描述与互联VPN和SIA相关联的系统，方法和其他实施例。 一个示例性设备包括映射数据存储，用于存储具有至少部分不兼容的具有单独转发平面的两个逻辑组网络设备之间的映射。 该装置包括用于基于与逻辑组相关联的唯一标识符建立映射的实例化逻辑。 该装置还包括编码逻辑，用于隐含地编码信息以识别提供给第二逻辑组的从第一逻辑组接收的分组中的第一逻辑组，然后提供给第一逻辑组。 隐式编码的信息被配置为不经由与第二逻辑组相关联的转发平面的修改使用，并且被配置为便于解决映射的第二逻辑组的成员。

    Method and System for Providing Network Management Based on Defining and Applying Network Administrative Intents
    19.
    发明申请
    Method and System for Providing Network Management Based on Defining and Applying Network Administrative Intents 有权
    基于定义和应用网络管理意图提供网络管理的方法和系统

    公开(公告)号：US20080056156A1

    公开(公告)日：2008-03-06

    申请号：US11470240

    申请日：2006-09-05

    Applicant: Robert Andrews ,  Navindra Yadav ,  Shree Murthy

    Inventor： Robert Andrews ,  Navindra Yadav ,  Shree Murthy

    IPC: H04L12/28

    CPC classification number: H04L41/0866 ,  H04L12/66 ,  H04L41/0806 ,  H04L41/0853 ,  H04L41/0893 ,  H04L41/12 ,  H04L41/5003 ,  H04L45/00

    Abstract: Method and system for providing a dynamic network configuration and management based on defining and applying high level administrative intents including retrieving one or more attributes associated with one or more logical groups in a network, determining one or more network policies based on the one or more retrieved attributes, associating the one or more logical groups to a respective network group identifier, and generating a network group list associated with the one or more network group identifiers, is disclosed.

    Abstract translation: 用于基于定义和应用高级管理意图提供动态网络配置和管理的方法和系统，包括检索与网络中的一个或多个逻辑组相关联的一个或多个属性，基于一个或多个检索到的一个或多个检索到的一个或多个网络策略 属性，将一个或多个逻辑组关联到相应的网络组标识符，以及生成与一个或多个网络组标识符相关联的网络组列表。

    Hardware-assisted central processing unit access to a forwarding database
    20.
    发明授权
    Hardware-assisted central processing unit access to a forwarding database 失效
    硬件辅助中央处理单元访问转发数据库

    公开(公告)号：US5909686A

    公开(公告)日：1999-06-01

    申请号：US885047

    申请日：1997-06-30

    Applicant: Shimon Muller ,  Ariel Hendel ,  Louise Yeung ,  Leo Hejza ,  Shree Murthy

    Inventor： Shimon Muller ,  Ariel Hendel ,  Louise Yeung ,  Leo Hejza ,  Shree Murthy

    IPC: G06F17/30 ,  H04L12/56

    CPC classification number: H04L49/3009 ,  G06F17/30557 ,  H04L49/254 ,  Y10S707/99931 ,  Y10S707/99945 ,  Y10S707/99948

    Abstract: A method and apparatus for providing hardware-assisted CPU access to a forwarding database is described. According to one aspect of the present invention, a switch fabric provides access to a forwarding database on behalf of a processor. The switch fabric includes a memory access interface configured to arbitrate access to a forwarding database memory. The switch fabric also includes a search engine coupled to the memory access interface and to multiple input ports. The search engine is configured to schedule and perform accesses to the forwarding database memory and to transfer forwarding decisions retrieved therefrom to the input ports. The switch fabric further includes command execution logic that is configured to interface with the processor for performing forwarding database accesses requested by the processor. According to another aspect of the invention one or more commands are provided to implement the following functions: (1) learning a supplied address; (2) reading associated data corresponding to a supplied search key; (3) aging forwarding database entries; (4) invalidating entries; (5) accessing mask data, such as mask data that may be stored in a mask per bit (MPB) content addressable memory (CAM), corresponding to a particular search key; (6) replacing forwarding database entries; and (7) accessing entries in the forwarding database.

    Abstract translation: 描述了一种用于向转发数据库提供硬件辅助CPU访问的方法和装置。 根据本发明的一个方面，交换结构代表处理器提供对转发数据库的访问。 交换结构包括被配置为仲裁对转发数据库存储器的访问的存储器访问接口。 交换结构还包括耦合到存储器访问接口和多个输入端口的搜索引擎。 搜索引擎被配置为调度和执行对转发数据库存储器的访问，并将从其检索的转发决定传送到输入端口。 交换结构还包括命令执行逻辑，其被配置为与处理器接口以执行由处理器请求的转发数据库访问。 根据本发明的另一方面，提供一个或多个命令以实现以下功能：（1）学习所提供的地址; （2）读取与提供的搜索关键字对应的关联数据; （3）老化转发数据库条目; （4）使条目无效; （5）访问对应于特定搜索关键字的掩码数据，例如可能存储在每位掩码（MPB）内容可寻址存储器（CAM））中的掩码数据; （6）替换转发数据库条目; 和（7）访问转发数据库中的条目。

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