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    OPTIMIZED INTRA-VLAN MULTICAST FORWARDING FOR SOFTWARE-DEFINED ACCESS ARCHITECTURES
    2.
    发明申请
    OPTIMIZED INTRA-VLAN MULTICAST FORWARDING FOR SOFTWARE-DEFINED ACCESS ARCHITECTURES 有权

    公开(公告)号：US20240406021A1

    公开(公告)日：2024-12-05

    申请号：US18328918

    申请日：2023-06-05

    Applicant: Cisco Technology, Inc.

    Inventor： Vengada Prasad Govindan ,  Aswin Kuppusami

    IPC: H04L12/18 ,  H04L12/44

    Abstract: A multicast state is generated within a Layer 2 (L2) fabric through a set of L2 tunnel router devices within the L2 fabric. The multicast state is generated without forwarding multicast traffic through Layer 3 (L3) gateways. When a data packet is received for distribution to other devices in the L2 fabric, an underlay multicast tree is defined at an L2 tunnel router device that is to serve as the multicast source for the data packet in the L2 fabric. The data packet is streamed to the other devices through the L2 tunnel router device along the underlay multicast tree without forwarding the data packet through the L3 gateways.

    DISAGGREGATED SWITCHING FABRIC WITH MULTICAST NETWORK GROUP MEMBERSHIP
    3.
    发明公开
    DISAGGREGATED SWITCHING FABRIC WITH MULTICAST NETWORK GROUP MEMBERSHIP 审中-公开

    公开(公告)号：US20240364555A1

    公开(公告)日：2024-10-31

    申请号：US18306397

    申请日：2023-04-25

    Applicant: Cisco Technology, Inc.

    Inventor： Tapraj Singh ,  Vijay Krishnaji Tapaskar ,  Praveen Bhagwatula ,  Venkat Garigipati

    IPC: H04L12/18 ,  H04L12/44 ,  H04L41/12

    CPC classification number: H04L12/185 ,  H04L12/44 ,  H04L41/12

    Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media for configuring network groups without software-based processing and management. A method includes: transmitting a topology request from a first leaf node to a first spine node; in response to receiving a network topology reply from a second leaf node, generating a network topology identifying a group of leaf nodes, the network topology reply including network information associated with the second leaf node, and in response to a request to send a message from a first network node connected to the first leaf node to a second network node connected to the second leaf node, transmitting the message to the second leaf node based on the network information from the network topology reply. In some aspects, the first spine node or a second spine node are configured to receive the message and transmit the message to the second leaf node.

    Synchronization in multi-chip systems
    8.
    发明授权
    Synchronization in multi-chip systems 有权

    公开(公告)号：US12032511B2

    公开(公告)日：2024-07-09

    申请号：US17844888

    申请日：2022-06-21

    Applicant: Google LLC

    Inventor： Michial Allen Gunter ,  Denis Baylor ,  Clifford Biffle ,  Charles Ross

    IPC: G06F15/173 ,  G06F15/17 ,  G06N3/063 ,  H04L12/44 ,  H04L43/0864

    CPC classification number: G06F15/17312 ,  G06F15/17 ,  G06F15/17337 ,  H04L12/44 ,  G06N3/063 ,  H04L43/0864

    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining, for each pair of adjacent chips in a plurality of chips connected in a series-ring arrangement of a semiconductor device, a corresponding loop latency for round trip data transmissions between the pair of chips. Identifying, from among the loop latencies, a maximum loop latency. Determining a ring latency for a data transmission originating from a chip of the plurality chips to be transmitted around the series-ring arrangement and back to the chip. Comparing half of the maximum loop latency to one N-th of the ring latency, where N is the number of chips in the plurality of chips, and storing the greater value as an inter-chip latency of the semiconductor device, the inter-chip latency representing an operational characteristic of the semiconductor device.

    Communication apparatus and communication method
    10.
    发明授权
    Communication apparatus and communication method 有权

    公开(公告)号：US11956098B2

    公开(公告)日：2024-04-09

    申请号：US18007645

    申请日：2020-06-08

    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    Inventor： Noriko Iiyama ,  Masamichi Fujiwara ,  Hiroo Suzuki ,  Junichi Kani

    IPC: H04L12/44 ,  H04L5/00

    CPC classification number: H04L12/44 ,  H04L5/0048

    Abstract: A communication device includes: a MAC unit that processes a main signal including a payload, and determines a communication timing of the main signal; a communication unit that performs, based on the communication timing, at least one of transmission processing for E/O converting the main signal acquired from the MAC unit, and transmitting the main signal to a communication counterpart device, and reception processing for O/E converting the main signal received from the communication counterpart device; a main signal transmission line through which the main signal is transmitted between the MAC unit and the communication unit; and a control information transmission line that is provided separately from the main signal transmission line, and through which communication timing data that is data indicating the communication timing is transmitted from the MAC unit to the communication unit.

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