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    System and method for discovering and verifying a hybrid fiber-coaxial topology in a cable network environment
    72.
    发明授权
    System and method for discovering and verifying a hybrid fiber-coaxial topology in a cable network environment 有权

    公开(公告)号：US09419862B2

    公开(公告)日：2016-08-16

    申请号：US14632474

    申请日：2015-02-26

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Rajiv Asati ,  Alon Bernstein ,  John T. Chapman

    IPC: H04L12/24 ,  H04B10/27 ,  H04L12/28 ,  H04B3/46

    CPC classification number: H04L41/12 ,  H04B3/46 ,  H04B10/27 ,  H04L12/2801 ,  H04L41/0853

    Abstract: A method in an example embodiment can include polling a first cable modem in a cable network and receiving a first response message from the first cable modem identifying a downstream frequency detected by the first cable modem. The method further includes determining the downstream frequency is split between at least two fiber nodes and determining a cable modem termination system (CMTS) service group topology, where the topology includes the at least two fiber nodes. In specific embodiments, determining that the downstream frequency is split is based on at least the first response message from the first cable modem and a second response message from a second cable modem. In more specific embodiments, the method includes constructing a hybrid fiber-coaxial (HFC) topology map of the cable network based on at least the first and second response messages, where the HFC topology map indicates the CMTS service group topology.

    Automated network device provisioning using dynamic host configuration protocol
    73.
    发明授权
    Automated network device provisioning using dynamic host configuration protocol 有权
    使用动态主机配置协议的自动网络设备配置

    公开(公告)号：US09215141B2

    公开(公告)日：2015-12-15

    申请号：US14572407

    申请日：2014-12-16

    Applicant: Cisco Technology, Inc.

    Inventor： Rajiv Asati ,  Ralph Droms ,  Vijay Bollapragada

    IPC: G06F15/173 ,  H04L12/24 ,  H04L12/46 ,  H04L12/715 ,  H04L29/12

    CPC classification number: H04L41/0823 ,  H04L12/4641 ,  H04L41/0806 ,  H04L41/0816 ,  H04L41/0886 ,  H04L45/04 ,  H04L61/2015

    Abstract: In an embodiment, an electronic digital data packet router performs receiving a DHCP initiation message on a particular interface among a plurality of network interfaces; modifying the DHCP initiation message by adding a particular DHCP option that signals a DHCP server to provide router configuration data, resulting in a modified DHCP initiation message; relaying the modified DHCP initiation message to the DHCP server; receiving, from the DHCP server, a DHCPOFFER message that comprises the particular DHCP option containing configuration data; configuring the router using the configuration data; relaying the DHCPOFFER message without the particular DHCP option on the particular interface toward another data packet router.

    Abstract translation: 在一个实施例中，电子数字数据包路由器在多个网络接口之间的特定接口上执行DHCP发起消息; 通过添加特定的DHCP选项来修改DHCP启动消息，该选项指示DHCP服务器提供路由器配置数据，导致修改的DHCP启动消息; 将修改的DHCP启动消息中继到DHCP服务器; 从DHCP服务器接收包含包含配置数据的特定DHCP选项的DHCPOFFER消息; 使用配置数据配置路由器; 将特定接口上没有特定DHCP选项的DHCPOFFER消息中继到另一个数据包路由器。

    Per-Prefix LFA FRR With Bit Indexed Explicit Replication
    74.
    发明申请
    Per-Prefix LFA FRR With Bit Indexed Explicit Replication 有权
    每个前缀LFA FRR与位索引显式复制

    公开(公告)号：US20150138961A1

    公开(公告)日：2015-05-21

    申请号：US14603547

    申请日：2015-01-23

    Applicant: Cisco Technology, Inc.

    Inventor： Ijsbrand Wijnands ,  Gregory J. Shepherd ,  Christian J. Martin ,  Rajiv Asati

    IPC: H04L12/24 ,  H04L12/18

    CPC classification number: H04L41/0668 ,  H04L12/18 ,  H04L12/1863 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28 ,  H04L45/54 ,  H04L45/74

    Abstract: Various systems and methods for performing bit indexed explicit replication (BIER). For example, one method involves receiving a packet at a node. The packet includes a bit string includes information identifying a plurality of destinations. The node selects an entry in a bit indexed forwarding table (BIFT). The BIFT includes both a primary path entry and a backup path entry. The node forwards the packet based on information in the entry.

    Abstract translation: 用于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分组。 分组包括位串，其包括标识多个目的地的信息。 节点选择位索引转发表（BIFT）中的条目。 BIFT包括主路径条目和备份路径条目。 节点根据条目中的信息转发数据包。

    Changing group member reachability information
    75.
    发明授权
    Changing group member reachability information 有权
    更改组成员可达性信息

    公开(公告)号：US09027114B2

    公开(公告)日：2015-05-05

    申请号：US13797595

    申请日：2013-03-12

    Applicant: Cisco Technology, Inc.

    Inventor： Aamer S. Akhter ,  Rajiv Asati ,  Brian Weis ,  Mohamed Khalid

    IPC: H04L29/06 ,  G06F15/16 ,  H04L9/08 ,  H04L29/12

    CPC classification number: H04L63/065 ,  H04L9/0833 ,  H04L9/0891 ,  H04L61/2076 ,  H04L63/0272 ,  H04L63/0428

    Abstract: In an embodiment, a method comprises obtaining a second network address at a computer node, which has been already associated with a first network address and provided first keying information; sending, to a key server computer, an update message that comprises both the first network address and the second network address; using the first keying information to encrypt messages that the computer node sends from the second network address to one or more other members of a group.

    Abstract translation: 在一个实施例中，一种方法包括获得已经与第一网络地址相关联并提供第一密钥信息的计算机节点处的第二网络地址; 向密钥服务器计算机发送包括所述第一网络地址和所述第二网络地址的更新消息; 使用第一密钥信息将计算机节点从第二网络地址发送的消息加密到组的一个或多个其他成员。

    MPLS LSP Connectivity Test When the Initiator Address is Unknown
    76.
    发明申请
    MPLS LSP Connectivity Test When the Initiator Address is Unknown 审中-公开
    启动器地址未知时，MPLS LSP连接测试

    公开(公告)号：US20150030026A1

    公开(公告)日：2015-01-29

    申请号：US13951758

    申请日：2013-07-26

    Applicant: Cisco Technology, Inc.

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

    IPC: H04L12/723

    Abstract: The present disclosure provides for carrying reachability information in an echo request message and/or an echo reply message, which can be used to reach an initiator when the initiator's address is unknown. An echo request message includes an FEC (forwarding equivalence class) stack that identifies a label switched path (LSP). The echo request message is received by a label switching routing element (LSR) on the LSP, and the echo request is originated by an initiator. In response to a detection that the FEC stack changes at the LSR, a segment reachability (SR) sub-TLV (type-length-value) element can be generated, where the SR sub-TLV includes reachability information that can be used to reach the initiator, and the reachability information includes an incoming label allocated by the LSR to reach the initiator.

    Abstract translation: 本公开提供了在回波请求消息和/或回应应答消息中携带可达性信息，其可以用于在发起者的地址未知时到达发起者。 回应请求消息包括标识标签交换路径（LSP）的FEC（转发等价类）堆栈。 回波请求消息由LSP上的标签交换路由元素（LSR）接收，回叫请求由发起者发起。 响应于FEC堆栈在LSR处的变化的检测，可以生成段可达性（SR）子TLV（类型长度值）元素，其中SR子TLV包括可用于到达的可达性信息 启动器和可达性信息包括由LSR分配的到达发起者的输入标签。

    DATA SECURITY AT CLOUD SCALE
    77.
    发明申请
    DATA SECURITY AT CLOUD SCALE 有权

    公开(公告)号：US20250005184A1

    公开(公告)日：2025-01-02

    申请号：US18345254

    申请日：2023-06-30

    Applicant: Cisco Technology, Inc.

    Inventor： Rajiv Asati ,  Akram Ismail Sheriff

    IPC: G06F21/62 ,  G06F9/54

    Abstract: A method to protect data in a database. The method includes detecting an actual flow path for an API call between a source node and a destination node, determining whether the actual flow path for the API call deviates from an expected flow path for the API call, and in response to determining that the actual flow path for the API call deviates from the expected flow path by a predetermined threshold, denying access to data sought by the API call at the destination node.

    SLICED FLOW TELEMETRY FOR FULL NETWORK VISIBILITY WITH LIMITED HARDWARE RESOURCES
    78.
    发明公开
    SLICED FLOW TELEMETRY FOR FULL NETWORK VISIBILITY WITH LIMITED HARDWARE RESOURCES 审中-公开

    公开(公告)号：US20240143470A1

    公开(公告)日：2024-05-02

    申请号：US17973850

    申请日：2022-10-26

    Applicant: Cisco Technology, Inc.

    Inventor： Mankamana Prasad Mishra ,  Rajiv Asati ,  Nitin Kumar

    IPC: G06F11/30 ,  G06F9/50 ,  G06F11/07

    CPC classification number: G06F11/3051 ,  G06F9/5044 ,  G06F11/0766 ,  G06F2209/508

    Abstract: In one embodiment, a method herein comprises: determining a set of flows to be monitored within a computer network; determining, by the device, a set of nodes within the computer network through which the set of flows traverse; determining monitoring capabilities for the set of nodes; generating an assignment for each particular node of the set of nodes to monitor a subset of one or more flows of the set of flows based on the monitoring capabilities of each particular node, wherein the assignment for each particular node of the set of nodes ensures that each flow of the set of flows is monitored by at least one or more nodes of the set of nodes; and instructing the set of nodes to monitor the set of flows according to the assignment for each particular node of the set of nodes.

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