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    MULTI-PATH AWARE TRACING AND PROBING FUNCTIONALITY AT SERVICE TOPOLOGY LAYER
    64.
    发明申请
    MULTI-PATH AWARE TRACING AND PROBING FUNCTIONALITY AT SERVICE TOPOLOGY LAYER 审中-公开
    多路径攻击和探测功能在服务拓扑层

    公开(公告)号：US20160134481A1

    公开(公告)日：2016-05-12

    申请号：US14587981

    申请日：2014-12-31

    Applicant: Cisco Technology, Inc.

    Inventor： Nobushige Akiya ,  Carlos M. Pignataro ,  Nagendra Kumar Nainar ,  Paul Quinn ,  James Guichard

    IPC: H04L12/24

    CPC classification number: H04L41/5058 ,  H04L41/5038

    Abstract: In one embodiment, a system and method are disclosed for sending a request and receiving a reply. The request contains a network service header including a flow label field and a target index field. The flow label field contains a set of available flow labels. The target index field includes a value indicating a target node. The reply contains information indicating which of the flow labels can be used to route a packet to each of the next hop nodes downstream from the device that sent the reply. This process can be repeated for other nodes on a path, and other paths in a service topology layer. The information determined by this process can be used to perform other necessary functionalities at the service topology layer.

    Abstract translation: 在一个实施例中，公开了用于发送请求并接收回复的系统和方法。 请求包含包括流标签字段和目标索引字段的网​​络服务头。 流标签字段包含一组可用流标签。 目标索引字段包括指示目标节点的值。 答复包含指示哪些流标签可以用于将分组路由到发送回复的设备下游的下一跳节点的信息。 可以对路径上的其他节点以及服务拓扑层中的其他路径重复此过程。 该过程确定的信息可用于在服务拓扑层执行其他必要的功能。

    PATH VALIDATION IN SEGMENT ROUTING NETWORKS
    66.
    发明申请
    PATH VALIDATION IN SEGMENT ROUTING NETWORKS 有权
    分段路由网络中的路径验证

    公开(公告)号：US20150381444A1

    公开(公告)日：2015-12-31

    申请号：US14315570

    申请日：2014-06-26

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  Nobushige Akiya

    IPC: H04L12/26

    CPC classification number: H04L43/0811 ,  H04L43/10

    Abstract: In one embodiment, a method includes generating a path validation packet at a network device, the path validation packet including a plurality of segment identifiers for use in segment routing and an operations, administration, and management (OAM) segment identifier for use in path validation, transmitting from the network device the path validation packet on a path having a plurality of routers associated with the segment identifiers, one of the routers associated with the OAM segment identifier, and validating the path if a return path validation packet is received. An apparatus is also disclosed herein.

    Abstract translation: 在一个实施例中，一种方法包括在网络设备处生成路径验证分组，所述路径验证分组包括用于分段路由的多个分段标识符以及用于路径验证的操作，管理和管理（OAM）段标识符 从网络设备发送具有与段标识符相关联的多个路由器的路径上的路径验证分组，与OAM分段标识符相关联的路由器之一，以及如果接收到返回路径验证分组则验证该路径。 本文还公开了一种装置。

    DETECTING FAILURES OF BACKUP LABEL SWITCHED PATHS IN A NETWORK ENVIRONMENT
    67.
    发明申请
    DETECTING FAILURES OF BACKUP LABEL SWITCHED PATHS IN A NETWORK ENVIRONMENT 审中-公开
    检测网络环境中备份标签交换机的故障

    公开(公告)号：US20150138947A1

    公开(公告)日：2015-05-21

    申请号：US14600068

    申请日：2015-01-20

    Applicant: CISCO TECHNOLOGY INC.

    Inventor： Nagendra Kumar Nainar ,  Rajiv Asati ,  Carlos M. Pignataro

    IPC: H04L12/24 ,  H04L12/707 ,  H04L12/723

    CPC classification number: H04L41/0668 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

    Abstract: A method is provided in one example and includes communicating a first request message to a first network element functioning as a point of local repair for a backup label switched path. The first request message includes a first network address having a predetermined value and an indication of a forwarding equivalence class associated with the backup label switched path. The method further includes receiving a first reply message from the first network element. The first reply message includes at least one backup path parameter associated with the backup label switched path.

    Abstract translation: 在一个示例中提供了一种方法，并且包括将第一请求消息传达到用作备份标签交换路径的本地修复点的第一网络元件。 第一请求消息包括具有预定值的第一网络地址和与备份标签交换路径相关联的转发等价类的指示。 该方法还包括从第一网络元件接收第一应答消息。 第一应答消息包括与备份标签交换路径相关联的至少一个备份路径参数。

    Bit Indexed Explicit Replication Using Internet Protocol Version 6
    68.
    发明申请
    Bit Indexed Explicit Replication Using Internet Protocol Version 6 有权
    使用Internet协议版本6的位索引显式复制

    公开(公告)号：US20150078379A1

    公开(公告)日：2015-03-19

    申请号：US14488810

    申请日：2014-09-17

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Ijsbrand Wijnands ,  Gregory J. Shepherd ,  Nagendra Kumar Nainar ,  Christian Martin

    IPC: H04L12/18 ,  H04L12/741 ,  H04L12/761

    CPC classification number: H04L12/18 ,  H04L12/1886 ,  H04L45/16 ,  H04L45/18 ,  H04L45/50 ,  H04L45/74

    Abstract: Various systems and methods for performing bit indexed explicit replication (BIER) using IPv6. For example, one method involves receiving, at a node, a packet that includes an IP header. The packet also includes a multicast forwarding entry. The method also involves comparing the multicast forwarding entry with forwarding information stored by the node and selecting a neighbor based on the comparing. The method further includes forwarding the packet to the neighbor.

    Abstract translation: 使用IPv6执行位索引显式复制（BIER）的各种系统和方法。 例如，一种方法涉及在节点处接收包括IP报头的分组。 该报文还包括组播转发表项。 该方法还包括将组播转发表项与节点存储的转发信息进行比较，并根据比较选择邻居。 该方法还包括将分组转发到邻居。

    Name resolution triggered monitoring agent selection
    69.
    发明授权
    Name resolution triggered monitoring agent selection 有权

    公开(公告)号：US12255869B2

    公开(公告)日：2025-03-18

    申请号：US17897745

    申请日：2022-08-29

    Applicant: Cisco Technology, Inc.

    Inventor： Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  David John Zacks ,  Thomas Szigeti

    IPC: H04L61/4511 ,  H04L61/2514 ,  H04L61/3015 ,  H04L67/1036

    Abstract: Methods are provided to perform a name resolution triggered monitoring agent selection for full stack observability. The methods involve obtaining a name resolution request for an enterprise service to be accessed by an endpoint device. A plurality of service instances are configured to provide the enterprise service. The methods further involve determining, based on the name resolution request, a monitoring agent from a plurality of monitoring agents of a monitoring service that monitors performance of the enterprise service and selecting a service instance, from the plurality of service instances, that is associated with the monitoring agent in a name resolution record. The methods further involve providing, to the endpoint device, location information for accessing the service instance and provisioning the monitoring agent to monitor the performance of the enterprise service executed by the service instance for the endpoint device.

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