中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

162 records (took 0.022 seconds)

    Leveraging multicast listener discovery for discovering hosts
    91.
    发明授权
    Leveraging multicast listener discovery for discovering hosts 有权

    公开(公告)号：US11516124B2

    公开(公告)日：2022-11-29

    申请号：US17214163

    申请日：2021-03-26

    Applicant: Cisco Technology, Inc.

    Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Patrick Wetterwald

    IPC: H04L45/00 ,  H04L45/02 ,  H04L12/46 ,  H04L49/201

    Abstract: Techniques for leveraging MLD capabilities at edge nodes of network fabrics to receive SNMAs from silent hosts, and creating unicast addresses from the SNMAs for the silent nodes that are used as secondary matches in a network overlay if primary unicast address lookups fail. The edge nodes described herein may act as snoopers of MLD reports in order to identify the SNMAs of the silent hosts. The edge nodes then forge unicast addresses for the silent hosts that match with the least three bytes of the SNMAs. The forged unicast addresses are presented as unicast MAC/IP mappings in the fabric overlay. In situations where a primary IP address lookup fails, the look-up device performs a secondary lookup for a mapped address that has the last three bytes of the IP address. If a mapping is found, the lookup is sent as a unicast message to the matching MAC address.

    Leveraging Multicast Listener Discovery for Discovering Hosts
    92.
    发明申请
    Leveraging Multicast Listener Discovery for Discovering Hosts 有权

    公开(公告)号：US20220311705A1

    公开(公告)日：2022-09-29

    申请号：US17214163

    申请日：2021-03-26

    Applicant: Cisco Technology, Inc.

    Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Patrick Wetterwald

    IPC: H04L12/721 ,  H04L12/931 ,  H04L12/46 ,  H04L12/751

    Abstract: Techniques for leveraging MLD capabilities at edge nodes of network fabrics to receive SNMAs from silent hosts, and creating unicast addresses from the SNMAs for the silent nodes that are used as secondary matches in a network overlay if primary unicast address lookups fail. The edge nodes described herein may act as snoopers of MLD reports in order to identify the SNMAs of the silent hosts. The edge nodes then forge unicast addresses for the silent hosts that match with the least three bytes of the SNMAs. The forged unicast addresses are presented as unicast MAC/IP mappings in the fabric overlay. In situations where a primary IP address lookup fails, the look-up device performs a secondary lookup for a mapped address that has the last three bytes of the IP address. If a mapping is found, the lookup is sent as a unicast message to the matching MAC address.

    Reverse operations, administration and maintenance (OAM) signaling in a mesh network
    93.
    发明授权
    Reverse operations, administration and maintenance (OAM) signaling in a mesh network 有权

    公开(公告)号：US11265763B2

    公开(公告)日：2022-03-01

    申请号：US16594316

    申请日：2019-10-07

    Applicant: Cisco Technology, Inc.

    Inventor： Pascal Thubert ,  Patrick Wetterwald ,  Eric Levy-Abegnoli ,  Xiaoguang Jason Chen

    IPC: H04W8/22 ,  H04W28/22

    Abstract: In one embodiment, a device in a mesh network joins a source-destination oriented partial directed acyclic graph (SDO-PDAG) between a source node and a destination node in the network. The device receives operations, administration and maintenance (OAM) packets flooded along reverse paths of the SDO-PDAG. The device determines, based on the received OAM packets, packet drop rate (PDR) capacities of different paths between the device and the destination node. The device replicates a data packet sent from the source node to the destination node along two or more of the paths between the device and the destination node, based on the determined PDR capacities of those paths.

    Distributed network query using walker agents
    94.
    发明授权
    Distributed network query using walker agents 有权

    公开(公告)号：US11133976B2

    公开(公告)日：2021-09-28

    申请号：US16814255

    申请日：2020-03-10

    Applicant: Cisco Technology, Inc.

    Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Patrick Wetterwald ,  Jean-Philippe Vasseur

    IPC: G06F13/00 ,  H04L12/24 ,  H04L29/08

    Abstract: In one embodiment, a device in a network receives a query walker agent configured to query information from a distributed set of devices in the network based on a query. The device executes the query walker agent to identify the query. The device updates state information of the executing query walker agent using local information from the device and based on the query. The device unloads the executing query walker agent after updating the state information. The device propagates the query walker agent with the updated state information to one or more of the distributed set of devices in the network, when the updated state information does not fully answer the query.

    Distributing traffic to multiple destinations via an isolation network
    98.
    发明授权
    Distributing traffic to multiple destinations via an isolation network 有权

    公开(公告)号：US10693671B2

    公开(公告)日：2020-06-23

    申请号：US15845170

    申请日：2017-12-18

    Applicant: Cisco Technology, Inc.

    Inventor： Eric Levy-Abegnoli ,  Patrick Wetterwald ,  Pascal Thubert ,  Jean-Philippe Vasseur

    IPC: H04L12/18 ,  H04L12/761 ,  H04L12/715 ,  H04L12/46

    Abstract: In one embodiment, a cloud-based service instructs one or more networking devices in a local area network (LAN) to form a virtual network overlay in the LAN that redirects traffic associated with a particular node in the LAN to the service. The service receives multicast or broadcast traffic sent by the particular node in the LAN and redirected to the service via the virtual network overlay. The service identifies a group of nodes in the network that are to receive the traffic sent by the particular node, based in part by profiling the traffic associated with the particular node. The service sends the traffic sent by the particular node to at least one networking device in the LAN with an indication of the identified group of nodes in the network that are to receive the traffic sent by the particular node. The at least one networking device forwards the traffic sent by the particular node to the nodes in the identified group.

    ROUTING IN FAT TREE NETWORKS USING NEGATIVE DISAGGREGATION ADVERTISEMENTS
    99.
    发明申请
    ROUTING IN FAT TREE NETWORKS USING NEGATIVE DISAGGREGATION ADVERTISEMENTS 审中-公开

    公开(公告)号：US20200177490A1

    公开(公告)日：2020-06-04

    申请号：US16781270

    申请日：2020-02-04

    Applicant: Cisco Technology, Inc.

    Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Jakob Heitz

    IPC: H04L12/751

    Abstract: A particular fat tree network node stores default routing information indicating that the particular fat tree network node can reach a plurality of parent fat tree network nodes of the particular fat tree network node. The particular fat tree network node obtains, from a first parent fat tree network node of the plurality of parent fat tree network nodes, a negative disaggregation advertisement indicating that the first parent fat tree network node cannot reach a specific destination. The particular fat tree network node determines whether the first parent fat tree network node is the only parent fat tree network node of the plurality of parent fat tree network nodes that cannot reach the specific destination. If so, the particular fat tree network node installs supplemental routing information indicating that every parent fat tree network node except the first parent fat tree network node can reach the specific destination.

Patent Agency Ranking