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    CLOSED LOOP AUTOMATION FOR INTENT-BASED NETWORKING
    12.
    发明申请
    CLOSED LOOP AUTOMATION FOR INTENT-BASED NETWORKING 有权

    公开(公告)号：US20210105189A1

    公开(公告)日：2021-04-08

    申请号：US16592866

    申请日：2019-10-04

    Applicant: Cisco Technology, Inc.

    Inventor： Benoit Claise ,  Carlos M. Pignataro ,  Eric Vyncke ,  Joseph M. Clarke ,  Mioljub Jovanovic ,  Harjinder Singh

    IPC: H04L12/24

    Abstract: A method is performed at one or more entities configured to configure and provide assurance for a service enabled on a network. The service is configured as a collection of subservices on network devices of the network. A definition of the service is decomposed into a subservice dependency graph that indicates the subservices and dependencies between the subservices that collectively implement the service. Based on the subservice dependency graph, the subservices are configured to record and report subservice metrics indicative of subservice health states of the subservices. The subservice metrics are obtained from the subservices, and the subservice health states of the subservices are determined based on the subservice metrics. A health state of the service is determined based on the subservice health states. One or more of the subservices are reconfigured based on the health state of the service.

    MAPPING BETWEEN CLASSICAL URLs AND ICN NETWORKS
    13.
    发明申请
    MAPPING BETWEEN CLASSICAL URLs AND ICN NETWORKS 审中-公开

    公开(公告)号：US20170302576A1

    公开(公告)日：2017-10-19

    申请号：US15488810

    申请日：2017-04-17

    Applicant: Cisco Technology, Inc.

    Inventor： Mark Townsley ,  Andre Surcouf ,  Eric Vyncke

    IPC: H04L12/28 ,  H04L12/743 ,  H04L29/12

    Abstract: A method for routing a request for content from a content provider through an IPv6 network is described, the IPv6 network being an information centric network (ICN) in which content is directly addressed using at least a portion of an IPv6 address. The method includes receiving, at an IPv6 network, a request for content, determining that the request does not comprise an ICN address. The method further includes intercepting the request, and translating the request into an IPv6 address in which at least a portion of the address is directed to or associated with the piece of content. Systems and methods described herein address problems arising from the interaction between IP and ICN networking models.

    CUMULATIVE SCHEMES FOR NETWORK PATH PROOF OF TRANSIT
    14.
    发明申请
    CUMULATIVE SCHEMES FOR NETWORK PATH PROOF OF TRANSIT 审中-公开
    网路路线证明的计算方案

    公开(公告)号：US20160315921A1

    公开(公告)日：2016-10-27

    申请号：US14992112

    申请日：2016-01-11

    Applicant: Cisco Technology, Inc.

    Inventor： Venkata Krishna Sashank Dara ,  Shwetha Subray Bhandari ,  Andrew Yourtchenko ,  Eric Vyncke ,  Frank Brockners

    IPC: H04L29/06 ,  H04L9/32

    CPC classification number: H04L9/32 ,  H04L12/4633 ,  H04L41/0246 ,  H04L41/0853 ,  H04L41/0866 ,  H04L41/28 ,  H04L45/26 ,  H04L61/6059 ,  H04L63/06 ,  H04L63/12 ,  H04L63/1408 ,  H04L69/166 ,  H04L69/22

    Abstract: A system and methods are provided for verifying proof of transit of network traffic through a plurality of network nodes in a network. In one embodiment, each network node reads a first value and a second value from in-band metadata of packet, and generates, using a cryptographic key that is unique to each respective network node, an encryption result based on the first value. An updated second value is generated based on the second value read from the packet and the encryption result. Each network node writes the updated second value to the in-band metadata of the packet, and forwards the packet in the network. In another embodiment, a secret sharing scheme is employed by each network node computes a portion of verification information using a unique share of a secret and based on the packet specific information.

    Abstract translation: 提供了一种用于验证通过网络中的多个网络节点的网络流量的过境证明的系统和方法。 在一个实施例中，每个网络节点从分组的带内元数据中读取第一值和第二值，并且使用每个相应网络节点唯一的密码密钥生成基于第一值的加密结果。 基于从分组读取的第二值和加密结果生成更新的第二值。 每个网络节点将更新的第二个值写入分组的带内元数据，并转发网络中的分组。 在另一个实施例中，每个网络节点使用秘密共享方案，使用秘密的唯一共享并基于分组特定信息来计算验证信息的一部分。

    Determining Connectivity Between Compute Nodes in Multi-Hop Paths
    15.
    发明申请
    Determining Connectivity Between Compute Nodes in Multi-Hop Paths 有权

    公开(公告)号：US20210075722A1

    公开(公告)日：2021-03-11

    申请号：US16566680

    申请日：2019-09-10

    Applicant: Cisco Technology, Inc.

    Inventor： Reshad Rahman ,  Carlos M. Pignataro ,  Nagendra Kumar Nainar ,  Eric Vyncke

    IPC: H04L12/721 ,  H04L12/749 ,  H04L12/703 ,  H04L12/733 ,  H04L12/707 ,  H04L12/46

    Abstract: Techniques and mechanisms to enable a Bidirectional Forwarding Detection (BFD) Echo function to be used for IP multi-hop paths using IP encapsulation. A source device may encapsulate one or more BFD Echo packets as payloads in IP packets. The resulting IP packets may then be sent from a source device to a destination device over a multi-hop path such that one or more intermediary devices forward the IP packets onto the destination device. Upon receiving the IP packets, the destination device may echo back the one or more BFD Echo packets in the forwarding plane to indicate connectivity of the forwarding path between the devices. However, if the BFD Echo packets are not echoed back to the source device, the source device may determine that the multi-hop path has experienced a fault, and that traffic is to be rerouted through other paths.

    Content distribution system cache management
    17.
    发明授权
    Content distribution system cache management 有权

    公开(公告)号：US10462055B2

    公开(公告)日：2019-10-29

    申请号：US14803162

    申请日：2015-07-20

    Applicant: Cisco Technology, Inc.

    Inventor： Andre Surcouf ,  William Mark Townsley ,  Stefano Benedetto Previdi ,  Eric Vyncke

    IPC: H04L12/747 ,  H04L12/741 ,  H04L29/08

    Abstract: Content distribution system cache management may be provided. First, a sync packet may be received by a cache server from a first server. The sync packet may include a list indicating a cache server where a chunk is to be stored and the address for the chunk. Next, an address for the chunk may be obtained by the cache server by parsing the sync packet. The cache server may then determine that the chunk is not stored on the cache server by using the address for the chunk. Next, in response to determining that the chunk is not stored on the cache server, a connection may be opened between the first server and the cache server. The cache server may then receive the chunk over the connection and cache the chunk on the cache server.

    Cumulative schemes for network path proof of transit
    19.
    发明授权
    Cumulative schemes for network path proof of transit 有权

    公开(公告)号：US10187209B2

    公开(公告)日：2019-01-22

    申请号：US14992112

    申请日：2016-01-11

    Applicant: Cisco Technology, Inc.

    Inventor： Venkata Krishna Sashank Dara ,  Shwetha Subray Bhandari ,  Andrew Yourtchenko ,  Eric Vyncke ,  Frank Brockners

    IPC: H04L9/32 ,  H04L29/06 ,  H04L29/12 ,  H04L12/46 ,  H04L12/24 ,  H04L12/721

    Abstract: A system and methods are provided for verifying proof of transit of network traffic through a plurality of network nodes in a network. In one embodiment, each network node reads a first value and a second value from in-band metadata of packet, and generates, using a cryptographic key that is unique to each respective network node, an encryption result based on the first value. An updated second value is generated based on the second value read from the packet and the encryption result. Each network node writes the updated second value to the in-band metadata of the packet, and forwards the packet in the network. In another embodiment, a secret sharing scheme is employed by each network node computes a portion of verification information using a unique share of a secret and based on the packet specific information.

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