利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

79 条记录 (耗时 0.029 秒)

    HARDWARE ACCELERATED PATH TRACING ANALYTICS
    1.
    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

    申请人： Cisco Technology, Inc.

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

    IPC分类号： H04L43/0852 ,  H04L43/12

    CPC分类号： H04L43/0852 ,  H04L43/12

    摘要： 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
    2.
    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

    申请人： Cisco Technology, Inc.

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

    IPC分类号： H04L69/04 ,  H04L45/74

    CPC分类号： H04L69/04 ,  H04L45/74

    摘要： 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
    3.
    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

    申请人： Cisco Technology, Inc.

    发明人： Clarence Filsfils ,  Pablo Camarillo Garvia

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

    CPC分类号： H04L45/74 ,  H04L43/106 ,  H04L69/22 ,  H04L45/02

    摘要： 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
    7.
    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

    申请人： Cisco Technology, Inc.

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

    IPC分类号： H04L43/12 ,  H04L45/02

    摘要： 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
    8.
    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

    申请人： Cisco Technology Inc.

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

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

    摘要： 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.

    Scalable network slice based queuing using segment routing flexible algorithm
    9.
    发明授权
    Scalable network slice based queuing using segment routing flexible algorithm 有权

    公开(公告)号：US10601724B1

    公开(公告)日：2020-03-24

    申请号：US16178418

    申请日：2018-11-01

    申请人： Cisco Technology, Inc.

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

    IPC分类号： H04L12/863 ,  H04L12/851 ,  H04L12/911 ,  H04L12/801 ,  H04L12/26

    摘要： The present technology is directed to a system and method for implementing network resource partitioning and Quality of Service (QoS) separation through network slicing. Embodiments of the present invention describe scalable network slicing method based on defining Segment Routing Flexible Algorithm to represent a network slice and assigning a distinct QoS policy queue to each of the Flexible Algorithms configured on a network node. Therefore, scalable network slice based queuing is implemented wherein a single packet processing queue is assigned to each Flex-Algorithm based network slice. QoS policy queue may be implemented in a hierarchical fashion by differentiation between flow packets in a single QoS policy queue based on value of experimental bits in the header.

    Packet communications providing packet forwarding efficiencies in a network including using a segment routing and tunnel exchange
    10.
    发明授权
    Packet communications providing packet forwarding efficiencies in a network including using a segment routing and tunnel exchange 有权

    公开(公告)号：US10594513B2

    公开(公告)日：2020-03-17

    申请号：US15925731

    申请日：2018-03-19

    申请人： Cisco Technology, Inc.

    发明人： Pablo Camarillo Garvia ,  Hendrikus G. P. Bosch ,  Clarence Filsfils

    IPC分类号： H04L12/46 ,  H04L12/741 ,  H04W84/04 ,  H04L12/723

    摘要： In one embodiment, a segment routing and tunnel exchange provides packet forwarding efficiencies in a network, including providing an exchange between a segment routing domain and a packet tunnel domain. One application includes the segment routing and tunnel exchange interfacing segment routing packet forwarding (e.g., in a Evolved Packet Core (EPC) and/or 5-G user plane) and packet tunnel forwarding in access networks (e.g., replacing a portion of a tunnel between an access node and a user plane function for accessing a corresponding data network). In one embodiment, a network provides mobility services using a segment routing data plane that spans segment routing and tunnel exchange(s) and segment routing-enabled user plane functions. One embodiment uses the segment routing data plane without any modification to a (radio) access network (R)AN (e.g., Evolved NodeB, Next Generation NodeB) nor to user equipment (e.g., any end user device).