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    SYSTEMS AND METHODS FOR SECURING NETWORK PATHS
    213.
    发明公开
    SYSTEMS AND METHODS FOR SECURING NETWORK PATHS 审中-公开

    公开(公告)号：US20230216788A1

    公开(公告)日：2023-07-06

    申请号：US18174711

    申请日：2023-02-27

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Reshad Rahman ,  Eric Albin Voit

    IPC: H04L45/42 ,  H04L45/24 ,  H04L9/32

    CPC classification number: H04L45/42 ,  H04L45/24 ,  H04L9/3213

    Abstract: In one embodiment, a method includes determining a secure path through a first plurality of network nodes within a network and determining an alternate secure path through a second plurality of network nodes within the network. The method also includes routing network traffic through the first plurality of network nodes of the secure path and detecting a failure in the secure path using single-hop BFD authentication. The method further includes rerouting the network traffic through the second plurality of network nodes of the alternate secure path.

    Path Assurance in Shared Transport
    216.
    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.

    Communicating Packets Across Multi-Domain Networks Using Compact Forwarding Instructions
    218.
    发明申请
    Communicating Packets Across Multi-Domain Networks Using Compact Forwarding Instructions 有权

    公开(公告)号：US20210377163A1

    公开(公告)日：2021-12-02

    申请号：US17404817

    申请日：2021-08-17

    Applicant: Cisco Technology, Inc.

    Inventor： Clarence Filsfils ,  Francois Clad ,  Zafar Ali ,  Peter Psenak

    IPC: H04L12/721 ,  H04L29/06 ,  H04L12/715

    Abstract: Techniques and mechanisms for compressing the size of SIDs to be smaller than a complete IPv6 address (or “micro SIDs”), and scaling micro SIDs across a multi-domain environment using micro SID-domain-blocks. Segment routing over IPv6 (SRv6) uses 128-bit IPv6 addresses as SIDs for segment routing. According to this disclosure, multiple SRv6 SIDs may be expressed in a compact format such that a 128-bit IPv6 address, such as the destination address field of the IPv6 header, may store multiple micro SIDs. Further, SID-domain-blocks may be assigned to each domain in a multi-domain network such that micro SIDs may be expressed in the context of a given domain, rather than being shared in the global multi-domain network. In this way, lists of domain-specific SIDs may be fully expressed in the IPv6 destination address of the packet to scale micro SID into large, multi-domain networks.

    SEGMENT ROUTING EXTENSION HEADERS
    219.
    发明申请
    SEGMENT ROUTING EXTENSION HEADERS 有权

    公开(公告)号：US20210359942A1

    公开(公告)日：2021-11-18

    申请号：US17387114

    申请日：2021-07-28

    Applicant: Cisco Technology, Inc.

    Inventor： Stefano B. Previdi ,  Clarence Filsfils

    IPC: H04L12/741 ,  H04L29/06 ,  H04L12/725

    Abstract: A system and method are disclosed for using segment routing (SR) in native IP networks. The method involves receiving a packet. The packet is an IP packet and includes an IP header. The method also involves updating the packet. Updating the packet involves writing information, including a segment routing segment identifier, to the destination address of the packet.

    Systems and methods for SRv6 micro segment insertion
    220.
    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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