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    VIRTUAL NETWORK FUNCTION PROOF OF TRANSIT
    33.
    发明公开
    VIRTUAL NETWORK FUNCTION PROOF OF TRANSIT 审中-公开

    公开(公告)号：US20240137281A1

    公开(公告)日：2024-04-25

    申请号：US18133950

    申请日：2023-04-11

    Applicant: Cisco Technology, Inc.

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

    IPC: H04L41/122 ,  H04L41/0895 ,  H04L41/40 ,  H04L43/10

    CPC classification number: H04L41/122 ,  H04L41/0895 ,  H04L41/40 ,  H04L43/10

    Abstract: Techniques for monitoring data transport in a network virtualization function chain (chain). A path tracing packet is generated having a Midpoint Compressed Data (MCD) to collect path tracing information of the chain. The network virtualization function node is configured to record an MCD containing Wide Local Path Tracing Identification (WL PT ID). The WL PT ID includes a first field having a value that indicates that a non-standard path tracing format is to be used and a second field that indicates a particular path tracing format to be used. The path tracing packet is passed through the chain and is received back after passing through the chain. Data collected by the path tracing packet is then analyzed to determine which network virtualization function nodes and chains the path tracing packet passed through and the amount of time taken for the path tracing packet to pass through the chain.

    Packet tracing mechanism in a network leveraging SRV6
    36.
    发明授权
    Packet tracing mechanism in a network leveraging SRV6 有权

    公开(公告)号：US11736397B2

    公开(公告)日：2023-08-22

    申请号：US17492532

    申请日：2021-10-01

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Pablo Camarillo Garvia

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

    CPC classification number: 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.

    Systems and methods for compressing a SID list
    39.
    发明授权
    Systems and methods for compressing a SID list 有权

    公开(公告)号：US11445048B2

    公开(公告)日：2022-09-13

    申请号：US16990030

    申请日：2020-08-11

    Applicant: Cisco Technology, Inc.

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

    IPC: 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.

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