利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

260 条记录 (耗时 0.041 秒)

    PERFORMANCE MEASUREMENT, TELEMETRY, AND OAM IN MPLS NETWORKS USING ENTROPY LABELS
    1.
    发明申请
    PERFORMANCE MEASUREMENT, TELEMETRY, AND OAM IN MPLS NETWORKS USING ENTROPY LABELS 有权

    公开(公告)号：US20230031423A1

    公开(公告)日：2023-02-02

    申请号：US17565823

    申请日：2021-12-30

    申请人： Cisco Technology, Inc.

    发明人： Rakesh Gandhi ,  Clarence Filsfils

    IPC分类号： H04L45/12 ,  H04L45/50 ,  H04L43/0852

    摘要： Techniques are described for utilizing entropy labels of a Multiprotocol Label Switching (MPLS) label stack for performing monitoring operations (e.g., telemetry, performance measurement, OAM, etc.) without altering the MPLS label stack and/or packet path (e.g., ECMP path). The techniques may include determining, by a node of a network, to perform a monitoring operation associated with traffic that is to be sent along a path through the network. In some examples, the node may receive a packet that is to be sent along the path and encapsulate the packet with an MPLS header. The MPLS header may include an entropy label, entropy label indicator, or other label that is capable of carrying a flag indicating the monitoring operation to be performed. The flag may be carried in a TTL field or traffic class field of the label such that the MPLS label stack is not altered to trigger the monitoring operation.

    Circuit-Style Network with Co-Routed Bidirectional Network Paths
    2.
    发明申请
    Circuit-Style Network with Co-Routed Bidirectional Network Paths 有权

    公开(公告)号：US20230021278A1

    公开(公告)日：2023-01-19

    申请号：US17741241

    申请日：2022-05-10

    申请人： Cisco Technology, Inc.

    发明人： Clarence Filsfils ,  Zafar Ali ,  Francois Clad ,  Bertrand Herbert Guy Duvivier ,  Mikhail Koldychev ,  Rakesh Gandhi ,  Sagar Soni

    IPC分类号： H04L45/42 ,  H04L45/00 ,  H04L45/74 ,  H04L45/28

    摘要： Disclosed are systems, apparatuses, methods, and computer-readable media to implement circuit-style network with co-routed bidirectional network paths. A method includes receiving a request for a circuit policy between a source node and a destination node, the circuit policy defining a co-routed bidirectional policy between the source node and the destination node; requesting a path compute service to identify a path between the source node and the destination node that satisfies the circuit policy through a first network; receiving a path identifying a first set of network nodes that satisfy the circuit policy; configuring each node in the first set of network nodes within the first network with the circuit policy; and establishing a connection using the path that satisfies the circuit policy between the source node and the destination node.

    TELEMETRY DATA OPTIMIZATION FOR PATH TRACING AND DELAY MEASUREMENT
    6.
    发明申请
    TELEMETRY DATA OPTIMIZATION FOR PATH TRACING AND DELAY MEASUREMENT 有权

    公开(公告)号：US20220173992A1

    公开(公告)日：2022-06-02

    申请号：US17344443

    申请日：2021-06-10

    申请人： Cisco Technology, Inc.

    发明人： Clarence Filsfils ,  Ahmed Mohamed Ahmed Abdelsalam ,  Rakesh Gandhi ,  Pablo Camarillo Garvia ,  Francois Clad

    IPC分类号： H04L12/26 ,  H04L12/24

    摘要： Techniques for optimizing technologies related to network path tracing and network delay measurements are described herein. Some of the techniques may include using an IPv6 header option and/or segment identifier field of a segment list or a TLV of a segment routing header as a telemetry data carrier. The techniques may also include using an SRv6 micro-segment (uSID) instruction to indicate to a node of a network that the node is to perform one or more path tracing actions and encapsulating the packet and forward. Additionally, the techniques may include using short interface identifiers corresponding to node interfaces to trace a packet path through a network. Further, the techniques may include using short timestamps to determine delay measurements associated with sending a packet through a network. In various examples, the techniques described above and herein may be used with each other to optimize network path tracing and delay measurement techniques.

    Applying attestation to segment routing
    8.
    发明授权
    Applying attestation to segment routing 有权

    公开(公告)号：US11240150B2

    公开(公告)日：2022-02-01

    申请号：US16781838

    申请日：2020-02-04

    申请人： Cisco Technology Inc.

    发明人： Francois Clad ,  Pablo Camarillo Garvia ,  Clarence Filsfils

    IPC分类号： H04L12/18 ,  H04L12/723 ,  H04L29/06 ,  H04L12/741 ,  G06F21/60

    摘要： In one embodiment, a method by an apparatus of a segment routing (SR) network includes receiving a data packet and accessing an attestation token for the apparatus. The method further includes determining a location within a header of the received data packet for the attestation token and creating an updated header by encoding the attestation token in the determined location of the header. The method further includes sending the updated header with the encoded attestation token to another apparatus of the SR network.

    SYSTEMS AND METHODS FOR DETERMINING SECURE NETWORK ELEMENTS USING FLEXIBLE ALGORITHM TECHNOLOGY
    9.
    发明申请
    SYSTEMS AND METHODS FOR DETERMINING SECURE NETWORK ELEMENTS USING FLEXIBLE ALGORITHM TECHNOLOGY 有权

    公开(公告)号：US20210377152A1

    公开(公告)日：2021-12-02

    申请号：US17399937

    申请日：2021-08-11

    申请人： Cisco Technology, Inc.

    发明人： Peter Psenak ,  Paul William Wells ,  Ketan Jivan Talaulikar ,  Clarence Filsfils

    IPC分类号： H04L12/721 ,  H04L29/06

    摘要： In one embodiment, an apparatus includes one or more processors and one or more computer-readable non-transitory storage media coupled to the one or more processors. The one or more computer-readable non-transitory storage media include instructions that, when executed by the one or more processors, cause the apparatus to perform operations including receiving a first type-length-value (TLV) associated with a winning flexible algorithm definition (FAD) from a first element of a network. The operations also include determining a security level for the winning FAD based on the TLV. The operations further include determining a data transmission route through a plurality of elements of the network based on the security level for the winning FAD.

    INBAND GROUP-BASED NETWORK POLICY USING SRV6
    10.
    发明申请
    INBAND GROUP-BASED NETWORK POLICY USING SRV6 有权

    公开(公告)号：US20210243116A1

    公开(公告)日：2021-08-05

    申请号：US16860896

    申请日：2020-04-28

    申请人： Cisco Technology, Inc.

    发明人： Clarence Filsfils ,  Ahmed Mohamed Ahmed Abdelsalam ,  Francois Clad ,  Pablo Camarillo Garvia ,  Kiran Sasidharan Pillai

    IPC分类号： H04L12/723 ,  H04L12/46 ,  H04L29/06 ,  H04L12/703 ,  H04L12/741

    摘要： The present technology pertains to a group-based network policy using Segment Routing over an IPv6 dataplane (SRv6). After a source application sends a packet, an ingress node can receive the packet, and if the source node is capable, it can identify an application policy and apply it. The ingress node indicates that the policy has been applied by including policy bits in the packet encapsulation. When the packet is received by the egress node, it can determine whether the policy was already applied, and if so, the packet is forward to the destination application. If the egress node determines that the policy has not be applied the destination application can apply the policy. Both the ingress node and egress nodes can learn of source application groups, destination application groups, and applicable policies through communication with aspects of the segment routing fabric.