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    Packet tracing mechanism in a network leveraging SRv6
    2.
    发明授权
    Packet tracing mechanism in a network leveraging SRv6 有权

    公开(公告)号：US12149445B2

    公开(公告)日：2024-11-19

    申请号：US18352921

    申请日：2023-07-14

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Pablo Camarillo Garvia

    IPC: H04L45/74 ,  H04L43/106 ,  H04L45/02 ,  H04L69/22

    Abstract: The present disclosure provides a packet tracing mechanism will be described that provides packet tracing information to a mobile network controller. In one aspect, a method includes receiving a data packet sent from a source node to a destination node; determining if the data packet is to be updated with packet tracing information; and upon determining that the data packet is to be updated, updating the packet tracing information of the data packet to include identification of the network device and an ingress timestamp of the data packet at the network device for a corresponding network controller to determining network routing policies.

    HARDWARE ACCELERATED PATH TRACING ANALYTICS
    3.
    发明公开
    HARDWARE ACCELERATED PATH TRACING ANALYTICS 审中-公开

    公开(公告)号：US20240297838A1

    公开(公告)日：2024-09-05

    申请号：US18227602

    申请日：2023-07-28

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Pablo Camarillo Garvia ,  Ahmed Mohamed Ahmed Abdelsalam ,  Sonia Ben Ayed ,  Jisu Bhattacharya

    IPC: H04L43/0852 ,  H04L43/12

    CPC classification number: H04L43/0852 ,  H04L43/12

    Abstract: Techniques for processing path tracing probe packets using hardware (e.g., hardware memory of a node) and without the involvement of a path tracing collector component of a network controller. A source node may be configured to generate and assign random flow labels to a large number of probe packets and send them through the network to a sink node. The sink node may determine whether a flow indicated by the probe packet has previously been traversed. Additionally, the sink node may determine latency values associated with the flows, and store probe packets in corresponding latency bins. The latency bins may be stored in hardware memory of the sink node. Telemetry data representing the probe packets stored in the latency bins may be sent to a network controller for further network analysis.

    Systems and methods for compressing a SID list
    4.
    发明授权
    Systems and methods for compressing a SID list 有权

    公开(公告)号：US11936759B2

    公开(公告)日：2024-03-19

    申请号：US17820000

    申请日：2022-08-16

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Francois Clad ,  Pablo Camarillo Garvia ,  Siva Sivabalan ,  Syed Kamran Raza

    IPC: H04L69/04 ,  H04L45/74

    CPC classification number: H04L69/04 ,  H04L45/74

    Abstract: In one embodiment, a method includes identifying, by a network component, a first segment identifier (SID) within a SID list. The first SID includes a first SID block and a first micro SID (uSID). The method also includes initializing, by the network component, a packing list of a uSID carrier with the first uSID of the first SID and initializing, by the network component, a packing block of the uSID carrier with the first SID block of the first SID. The method further includes initializing, by the network component, a remaining packing capacity of the packing list with a carrier capacity of the first SID and initializing, by the network component, an empty compressed SID list.

    PACKET TRACING MECHANISM IN A NETWORK LEVERAGING SRV6
    5.
    发明公开
    PACKET TRACING MECHANISM IN A NETWORK LEVERAGING SRV6 审中-公开

    公开(公告)号：US20240039845A1

    公开(公告)日：2024-02-01

    申请号：US18456381

    申请日：2023-08-25

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Pablo Camarillo Garvia

    IPC: H04L45/74 ,  H04L43/106 ,  H04L69/22 ,  H04L45/02

    CPC classification number: H04L45/74 ,  H04L43/106 ,  H04L69/22 ,  H04L45/02

    Abstract: The present disclosure provides a packet tracing mechanism will be described that provides packet tracing information to a mobile network controller. In one aspect, a method includes receiving a data packet sent from a source node to a destination node; determining if the data packet is to be updated with packet tracing information; and upon determining that the data packet is to be updated, updating the packet tracing information of the data packet to include identification of the network device and an ingress timestamp of the data packet at the network device for a corresponding network controller to determining network routing policies.

    Path Assurance in Shared Transport
    9.
    发明申请
    Path Assurance in Shared Transport 有权

    公开(公告)号：US20230009602A1

    公开(公告)日：2023-01-12

    申请号：US17727428

    申请日：2022-04-22

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Pablo Camarillo Garvia ,  Ahmed Mohamed Ahmed Abdelsalam ,  Karen Michele Cadora

    IPC: H04L43/12 ,  H04L45/02

    Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media to measure performance of distinct paths of a network. A method includes determining a collection of hashes of a network based on a network probe event, each hash in the collection of hashes corresponding to a distinct path from a first edge device to a second edge device through the network; transmitting a collection of probes from the first edge device in the network, wherein each probe in the collection of probes is assigned a hash selected from the collection of hashes; receiving probes from the collection of probes at the second edge device; and determining a network performance of each distinct path through the network.

    Systems and methods for SRv6 micro segment insertion
    10.
    发明授权
    Systems and methods for SRv6 micro segment insertion 有权

    公开(公告)号：US11146507B1

    公开(公告)日：2021-10-12

    申请号：US16847173

    申请日：2020-04-13

    Applicant: Cisco Technology Inc.

    Inventor： Clarence Filsfils ,  Pablo Camarillo Garvia ,  Syed Kamran Raza ,  Francois Clad

    IPC: H04L12/935 ,  H04L29/06 ,  H04L12/721 ,  H04L29/12

    Abstract: The present disclosure relates to methods and systems for inserting micro segments into a data packet. The methods may include the steps of receiving a packet with a destination address corresponding to a Micro Segment Identifier (uSID) carrier having one or more existing micro segments followed by one or more empty micro segment positions, receiving information relating to one or more new micro segments to be inserted into the uSID carrier, the one or more new micro segments associated with a new bit length, calculating a remaining bit length of the uSID carrier, the remaining bit length associated with the one or more empty micro segment positions in the uSID carrier, wherein, if the remaining bit length is greater than or equal to the new bit length, updating the uSID carrier by inserting the new micro segments, and forwarding the packet to destinations associated with the updated uSID carrier.

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